TY  - JOUR
AU  - Milošević, Miloš
AU  - Jevtić, Ivana
AU  - Trajković, Isaak
AU  - Zlatanović, Ivan
AU  - Mladenović, Goran
AU  - Korolija, Nenad
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7766
AB  - The texture of food plays a vital role in its overall quality, affecting both sensory experience and functional aspects, such as processing and preservation. To study texture in the field of food science and technology, various analytical methods are used tomeasure mechanical properties such as hardness, cohesiveness, and viscosity. One widely utilized technique for evaluating the texture of solid foods, particularly those with high firmness or brittleness such as dried vegetables, is compression testing. Here, a force is applied to a food sample until it deforms or fractures. In this particular study, dried onions, carrots, and peppers were chosen as test samples to investigate their texture and compression properties. To perform the tests, the researchers employed a Shimadzu AGS-X universal testing machine equipped with a 1 kN load cell capacity. This machine allowed them to compress the samples and measure the force required to achieve a specific deformation. The obtained results revealed that the texture and compression properties of the
dried vegetables were significantly influenced by the specific part of the vegetable being tested. For instance, when examining the dried onions, a notable disparity was observed between the inner and outer parts. The basal plate of the onion, in particular, exhibited much greater hardness compared to the middle portion of the dried onion. Consequently, breaking the sample required a higher compression force. This discovery implies that the texture and compression properties of dried vegetables are closely tied to their inherent characteristics, internal structure, and
composition.
PB  - Springer
T2  - New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
T1  - Determination of Compression Response for Various Dried Vegetables
EP  - 104
SP  - 96
VL  - 792
DO  - 10.1007/978-3-031-46432-4_8
ER  - 

@article{
author = "Milošević, Miloš and Jevtić, Ivana and Trajković, Isaak and Zlatanović, Ivan and Mladenović, Goran and Korolija, Nenad",
year = "2024",
abstract = "The texture of food plays a vital role in its overall quality, affecting both sensory experience and functional aspects, such as processing and preservation. To study texture in the field of food science and technology, various analytical methods are used tomeasure mechanical properties such as hardness, cohesiveness, and viscosity. One widely utilized technique for evaluating the texture of solid foods, particularly those with high firmness or brittleness such as dried vegetables, is compression testing. Here, a force is applied to a food sample until it deforms or fractures. In this particular study, dried onions, carrots, and peppers were chosen as test samples to investigate their texture and compression properties. To perform the tests, the researchers employed a Shimadzu AGS-X universal testing machine equipped with a 1 kN load cell capacity. This machine allowed them to compress the samples and measure the force required to achieve a specific deformation. The obtained results revealed that the texture and compression properties of the
dried vegetables were significantly influenced by the specific part of the vegetable being tested. For instance, when examining the dried onions, a notable disparity was observed between the inner and outer parts. The basal plate of the onion, in particular, exhibited much greater hardness compared to the middle portion of the dried onion. Consequently, breaking the sample required a higher compression force. This discovery implies that the texture and compression properties of dried vegetables are closely tied to their inherent characteristics, internal structure, and
composition.",
publisher = "Springer",
journal = "New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023",
title = "Determination of Compression Response for Various Dried Vegetables",
pages = "104-96",
volume = "792",
doi = "10.1007/978-3-031-46432-4_8"
}

Milošević, M., Jevtić, I., Trajković, I., Zlatanović, I., Mladenović, G.,& Korolija, N.. (2024). Determination of Compression Response for Various Dried Vegetables. in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
Springer., 792, 96-104.
https://doi.org/10.1007/978-3-031-46432-4_8

Milošević M, Jevtić I, Trajković I, Zlatanović I, Mladenović G, Korolija N. Determination of Compression Response for Various Dried Vegetables. in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023. 2024;792:96-104.
doi:10.1007/978-3-031-46432-4_8 .

Milošević, Miloš, Jevtić, Ivana, Trajković, Isaak, Zlatanović, Ivan, Mladenović, Goran, Korolija, Nenad, "Determination of Compression Response for Various Dried Vegetables" in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023, 792 (2024):96-104,
https://doi.org/10.1007/978-3-031-46432-4_8 . .

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
AU  - Travica, Milan
AU  - Trajković, Isaak
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7764
AB  - The objective of this study is to examine the accuracy of dimensional measurements for parts produced using Additive Manufacturing (AM) technology. The specific 3D printer employed in this research is Fuse 1 (FormLabs, Summerville, MA). The printer operates on the Selective Laser Sintering (SLS) method, enabling the simultaneous creation of objects with diverse shapes and sizes, as long as they are printed at a minimum separation distance of 5 mm. The printing process involved a layer thickness of 110 microns. To assess the dimensional accuracy, a particular type of specimen adhering to the ISO 604 standard for compressive specimens was analyzed. These compressive specimens possess dimensions of Ø10 × 20 mm. Four sets of specimens were fabricated, differing in their printing orientation (horizontal or vertical) and printing location (edge or middle of the powder bed). Polyamide (PA 12) was the chosen material for printing the specimens, known to exhibit compressive strength values of 13/24/55 MPa at 1%/2%/5% strain, respectively. After printing, the specimens were subjected to a 3D scanner Atos Core 200. The most significant deviations observed across all four series of specimens were primarily in terms of height, ranging from 0.1 to 0.15 mm. In the case of vertically printed specimens positioned in the middle of the powder bed, variations in the width of the specimens were also noted.
PB  - Springer
T2  - New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
T1  - Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology
EP  - 213
SP  - 206
VL  - 792
DO  - 10.1007/978-3-031-46432-4_16
ER  - 

@article{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanović, Aleksa and Travica, Milan and Trajković, Isaak",
year = "2024",
abstract = "The objective of this study is to examine the accuracy of dimensional measurements for parts produced using Additive Manufacturing (AM) technology. The specific 3D printer employed in this research is Fuse 1 (FormLabs, Summerville, MA). The printer operates on the Selective Laser Sintering (SLS) method, enabling the simultaneous creation of objects with diverse shapes and sizes, as long as they are printed at a minimum separation distance of 5 mm. The printing process involved a layer thickness of 110 microns. To assess the dimensional accuracy, a particular type of specimen adhering to the ISO 604 standard for compressive specimens was analyzed. These compressive specimens possess dimensions of Ø10 × 20 mm. Four sets of specimens were fabricated, differing in their printing orientation (horizontal or vertical) and printing location (edge or middle of the powder bed). Polyamide (PA 12) was the chosen material for printing the specimens, known to exhibit compressive strength values of 13/24/55 MPa at 1%/2%/5% strain, respectively. After printing, the specimens were subjected to a 3D scanner Atos Core 200. The most significant deviations observed across all four series of specimens were primarily in terms of height, ranging from 0.1 to 0.15 mm. In the case of vertically printed specimens positioned in the middle of the powder bed, variations in the width of the specimens were also noted.",
publisher = "Springer",
journal = "New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023",
title = "Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology",
pages = "213-206",
volume = "792",
doi = "10.1007/978-3-031-46432-4_16"
}

Jevtić, I., Mladenović, G., Milošević, M., Milovanović, A., Travica, M.,& Trajković, I.. (2024). Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology. in New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
Springer., 792, 206-213.
https://doi.org/10.1007/978-3-031-46432-4_16

Jevtić I, Mladenović G, Milošević M, Milovanović A, Travica M, Trajković I. Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology. in New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023. 2024;792:206-213.
doi:10.1007/978-3-031-46432-4_16 .

Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanović, Aleksa, Travica, Milan, Trajković, Isaak, "Dimensional Accuracy of Compressive Specimens Obtained by SLS Technology" in New Trends in Engineering Research, Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023, 792 (2024):206-213,
https://doi.org/10.1007/978-3-031-46432-4_16 . .

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Trajković, Isaak
AU  - Zlatanović, Ivan
AU  - Mladenović, Goran
AU  - Korolija, Nenad
AU  - Milošević, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7765
AB  - The evaluation of food texture is an essential aspect of food quality control, directly influencing consumer acceptance and preference. Various methods have been developed to assess food texture, including sensory evaluation, rheological measurements, and instrumental analysis. Among the versatile instruments used for measuring the mechanical properties of food, the universal testing machine (UTM) stands out. Traditionally used in the field of materials science
and engineering, the possibility of applying UTM for evaluating food textures has gained significant attention in recent years. The UTM can perform compression, tension, bending, and shear tests on food samples, providing objective and quantifiable data on their mechanical properties. Compression testing involves measuring the force required to compress a food sample between two plates, shear testing measures the force required to cut through a food sample, while puncture testing measures the force required to puncture a food sample with a probe. This paper reviews the current state-of-the-art of UTM in the evaluation of food textures, including the types of tests that can be performed, the parameters that can be measured, and the challenges and limitations associated with the technique. The potential of utilizing UTMs in the food industry for quality control
and product development, instead of traditional sensory evaluation methods, is discussed, along with its advantages and disadvantages. Overall, UTM represents a promising tool for the objective evaluation of food textures, and further research is needed to optimize its application in this field.
PB  - Springer
T2  - New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
T1  - The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures
EP  - 229
SP  - 222
VL  - 792
DO  - 10.1007/978-3-031-46432-4_18
ER  - 

@article{
author = "Jevtić, Ivana and Trajković, Isaak and Zlatanović, Ivan and Mladenović, Goran and Korolija, Nenad and Milošević, Miloš",
year = "2024",
abstract = "The evaluation of food texture is an essential aspect of food quality control, directly influencing consumer acceptance and preference. Various methods have been developed to assess food texture, including sensory evaluation, rheological measurements, and instrumental analysis. Among the versatile instruments used for measuring the mechanical properties of food, the universal testing machine (UTM) stands out. Traditionally used in the field of materials science
and engineering, the possibility of applying UTM for evaluating food textures has gained significant attention in recent years. The UTM can perform compression, tension, bending, and shear tests on food samples, providing objective and quantifiable data on their mechanical properties. Compression testing involves measuring the force required to compress a food sample between two plates, shear testing measures the force required to cut through a food sample, while puncture testing measures the force required to puncture a food sample with a probe. This paper reviews the current state-of-the-art of UTM in the evaluation of food textures, including the types of tests that can be performed, the parameters that can be measured, and the challenges and limitations associated with the technique. The potential of utilizing UTMs in the food industry for quality control
and product development, instead of traditional sensory evaluation methods, is discussed, along with its advantages and disadvantages. Overall, UTM represents a promising tool for the objective evaluation of food textures, and further research is needed to optimize its application in this field.",
publisher = "Springer",
journal = "New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023",
title = "The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures",
pages = "229-222",
volume = "792",
doi = "10.1007/978-3-031-46432-4_18"
}

Jevtić, I., Trajković, I., Zlatanović, I., Mladenović, G., Korolija, N.,& Milošević, M.. (2024). The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures. in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023
Springer., 792, 222-229.
https://doi.org/10.1007/978-3-031-46432-4_18

Jevtić I, Trajković I, Zlatanović I, Mladenović G, Korolija N, Milošević M. The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures. in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023. 2024;792:222-229.
doi:10.1007/978-3-031-46432-4_18 .

Jevtić, Ivana, Trajković, Isaak, Zlatanović, Ivan, Mladenović, Goran, Korolija, Nenad, Milošević, Miloš, "The Possibility of Applying a Universal Testing Machine for Evaluating Food Textures" in New Trends in Engineering Research Proceedings of the International Conference of Experimental and Numerical Investigations and New Technologies, CNNTech 2023, 792 (2024):222-229,
https://doi.org/10.1007/978-3-031-46432-4_18 . .

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Stojanović, Jagoš
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Mladenović, Goran
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7750
AB  - This research aims to determine how the orientation and placement of printing impacts the compressive strength of specimens manufactured by Selective Laser Sintering (SLS).
The research includes compressive specimens in which the CAD model dimensions are selected according to the ISO 604 standard, and specimen geometry Ø10x20 mm in bulk. All specimen configurations are additively manufactured in two different printing orientations, horizontal and vertical, and printed in the middle and on the edge of the powder bed. All specimens are additively manufactured using Polyamide 12 (PA 12) material on a Fuse 1 device (FormLabs, located in Summerville, MA). Compressive strength testing was carried out using a Shimadzu AGS-X universal testing machine (Shimadzu Corp., Kyoto, Japan).
T2  - STRUCTURAL INTEGRITY AND LIFE
T1  - PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY
EP  - 7
IS  - 1
SP  - 3
VL  - 24
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7750
ER  - 

@article{
author = "Jevtić, Ivana and Stojanović, Jagoš and Milovanović, Aleksa and Trajković, Isaak and Milošević, Miloš and Mladenović, Goran",
year = "2024",
abstract = "This research aims to determine how the orientation and placement of printing impacts the compressive strength of specimens manufactured by Selective Laser Sintering (SLS).
The research includes compressive specimens in which the CAD model dimensions are selected according to the ISO 604 standard, and specimen geometry Ø10x20 mm in bulk. All specimen configurations are additively manufactured in two different printing orientations, horizontal and vertical, and printed in the middle and on the edge of the powder bed. All specimens are additively manufactured using Polyamide 12 (PA 12) material on a Fuse 1 device (FormLabs, located in Summerville, MA). Compressive strength testing was carried out using a Shimadzu AGS-X universal testing machine (Shimadzu Corp., Kyoto, Japan).",
journal = "STRUCTURAL INTEGRITY AND LIFE",
title = "PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY",
pages = "7-3",
number = "1",
volume = "24",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7750"
}

Jevtić, I., Stojanović, J., Milovanović, A., Trajković, I., Milošević, M.,& Mladenović, G.. (2024). PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY. in STRUCTURAL INTEGRITY AND LIFE, 24(1), 3-7.
https://hdl.handle.net/21.15107/rcub_machinery_7750

Jevtić I, Stojanović J, Milovanović A, Trajković I, Milošević M, Mladenović G. PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY. in STRUCTURAL INTEGRITY AND LIFE. 2024;24(1):3-7.
https://hdl.handle.net/21.15107/rcub_machinery_7750 .

Jevtić, Ivana, Stojanović, Jagoš, Milovanović, Aleksa, Trajković, Isaak, Milošević, Miloš, Mladenović, Goran, "PRINTING ORIENTATION AND PLACE INFLUENCING THE COMPRESSIVE STRENGTH OF POLYAMID 12 SPECIMENS OBTAINED BY SLS TECHNOLOGY" in STRUCTURAL INTEGRITY AND LIFE, 24, no. 1 (2024):3-7,
https://hdl.handle.net/21.15107/rcub_machinery_7750 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Trajković, Isaak
AU  - Milovanović, Aleksa
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7372
AB  - SLS technology is a popular choice in various industries worldwide because of its ability to produce complex geometry components with less effort when compared to conventional methods. The technology involves using materials in powder forms, such as polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. In this study, the research focuses on compressive PA12 specimens with CAD model dimensions selected according to the ISO 604 standard, with bulk dimensions of Ø10x20 [mm]. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs the SLS technology. This printer is capable of producing objects with different shapes and dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. The research involves producing four batches of specimens, each differing in printing orientation (i.e., horizontal and vertical) and printing location (i.e., printed on the edge and in the middle of the powder bed). The printed specimens are scanned, and the obtained scans are compared with the original CAD model in the GOM Inspect program. The highest deviations in all four specimen series are in height, ranging from 0.1 up to 0.15 mm. In the case of vertical specimens printed in the middle of the powder bed, there are also deviations in the width of the specimen.
PB  - Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia
C3  - International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)
T1  - Deviations measurements of SLS PA material at compressive specimens
SP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7372
ER  - 

@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Trajković, Isaak and Milovanović, Aleksa",
year = "2023",
abstract = "SLS technology is a popular choice in various industries worldwide because of its ability to produce complex geometry components with less effort when compared to conventional methods. The technology involves using materials in powder forms, such as polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. In this study, the research focuses on compressive PA12 specimens with CAD model dimensions selected according to the ISO 604 standard, with bulk dimensions of Ø10x20 [mm]. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs the SLS technology. This printer is capable of producing objects with different shapes and dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. The research involves producing four batches of specimens, each differing in printing orientation (i.e., horizontal and vertical) and printing location (i.e., printed on the edge and in the middle of the powder bed). The printed specimens are scanned, and the obtained scans are compared with the original CAD model in the GOM Inspect program. The highest deviations in all four specimen series are in height, ranging from 0.1 up to 0.15 mm. In the case of vertical specimens printed in the middle of the powder bed, there are also deviations in the width of the specimen.",
publisher = "Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia",
journal = "International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)",
title = "Deviations measurements of SLS PA material at compressive specimens",
pages = "8",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7372"
}

Jevtić, I., Mladenović, G., Milošević, M., Trajković, I.,& Milovanović, A.. (2023). Deviations measurements of SLS PA material at compressive specimens. in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)
Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia., 8.
https://hdl.handle.net/21.15107/rcub_machinery_7372

Jevtić I, Mladenović G, Milošević M, Trajković I, Milovanović A. Deviations measurements of SLS PA material at compressive specimens. in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor). 2023;:8.
https://hdl.handle.net/21.15107/rcub_machinery_7372 .

Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Trajković, Isaak, Milovanović, Aleksa, "Deviations measurements of SLS PA material at compressive specimens" in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor) (2023):8,
https://hdl.handle.net/21.15107/rcub_machinery_7372 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Drakulović, Obrad
AU  - Mladenović, Goran
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7641
AB  - A continuous and sufficient supply of top-quality water is imperative for the proper development and survival of bees. Beekeepers often rely on a variety of water containers, each afflicted with numerous shortcomings such as limited capacity, irregular water availability, and subpar sanitation. This analysis aims to investigate the different categories of bee drinkers essential for meeting the water needs of bees. Additionally, we will conduct an in-depth examination of the pros and cons associated with each type of waterer to gain insights into their effectiveness and their impact on bee colonies. Ultimately, we will determine the most suitable waterer for the unique conditions and demands of beekeeping operations.
PB  - The Academy of Applied Technical Studies Belgrade
C3  - International Scientific and Professional Conference Politehnika 2023
T1  - Types of bee drinkers
EP  - 1164
SP  - 1161
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7641
ER  - 

@conference{
author = "Jevtić, Ivana and Drakulović, Obrad and Mladenović, Goran and Milošević, Miloš",
year = "2023",
abstract = "A continuous and sufficient supply of top-quality water is imperative for the proper development and survival of bees. Beekeepers often rely on a variety of water containers, each afflicted with numerous shortcomings such as limited capacity, irregular water availability, and subpar sanitation. This analysis aims to investigate the different categories of bee drinkers essential for meeting the water needs of bees. Additionally, we will conduct an in-depth examination of the pros and cons associated with each type of waterer to gain insights into their effectiveness and their impact on bee colonies. Ultimately, we will determine the most suitable waterer for the unique conditions and demands of beekeeping operations.",
publisher = "The Academy of Applied Technical Studies Belgrade",
journal = "International Scientific and Professional Conference Politehnika 2023",
title = "Types of bee drinkers",
pages = "1164-1161",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7641"
}

Jevtić, I., Drakulović, O., Mladenović, G.,& Milošević, M.. (2023). Types of bee drinkers. in International Scientific and Professional Conference Politehnika 2023
The Academy of Applied Technical Studies Belgrade., 1161-1164.
https://hdl.handle.net/21.15107/rcub_machinery_7641

Jevtić I, Drakulović O, Mladenović G, Milošević M. Types of bee drinkers. in International Scientific and Professional Conference Politehnika 2023. 2023;:1161-1164.
https://hdl.handle.net/21.15107/rcub_machinery_7641 .

Jevtić, Ivana, Drakulović, Obrad, Mladenović, Goran, Milošević, Miloš, "Types of bee drinkers" in International Scientific and Professional Conference Politehnika 2023 (2023):1161-1164,
https://hdl.handle.net/21.15107/rcub_machinery_7641 .

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
AU  - Đurković, Marija
AU  - Korolija, Nenad
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7423
AB  - This article aims to investigate the mechanical characteristics of specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials. CAD model dimensions were selected according to the ISO 178 standard, and the chosen specimen geometry is 96 x 8 x 4 [mm] in bulk. All specimens were produced using a specialized machine Fuse 1 (FormLabs, Summerville, MA). Four specimen batches were produced, each with a different printing orientation (i.e. vertical and horizontal) and location on the printing plate (i.e. in the middle and on the edge of the powder bed). The specimens are tested using a Shimadzu universal machine for testing the mechanical characteristics of materials, AGS-X 100 kN, with a unique additional tool for testing 3-point bending specimens.
T2  - Science of Sintering
T1  - The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS
DO  - 10.2298/SOS230508031J
ER  - 

@article{
author = "Jevtić, Ivana and Mladenović, Goran and Milovanović, Aleksa and Trajković, Isaak and Đurković, Marija and Korolija, Nenad and Milošević, Miloš",
year = "2023",
abstract = "This article aims to investigate the mechanical characteristics of specimens fabricated using Selective Laser Sintering technology. The research covers flexural specimens, produced by PA12 materials. CAD model dimensions were selected according to the ISO 178 standard, and the chosen specimen geometry is 96 x 8 x 4 [mm] in bulk. All specimens were produced using a specialized machine Fuse 1 (FormLabs, Summerville, MA). Four specimen batches were produced, each with a different printing orientation (i.e. vertical and horizontal) and location on the printing plate (i.e. in the middle and on the edge of the powder bed). The specimens are tested using a Shimadzu universal machine for testing the mechanical characteristics of materials, AGS-X 100 kN, with a unique additional tool for testing 3-point bending specimens.",
journal = "Science of Sintering",
title = "The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS",
doi = "10.2298/SOS230508031J"
}

Jevtić, I., Mladenović, G., Milovanović, A., Trajković, I., Đurković, M., Korolija, N.,& Milošević, M.. (2023). The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS. in Science of Sintering.
https://doi.org/10.2298/SOS230508031J

Jevtić I, Mladenović G, Milovanović A, Trajković I, Đurković M, Korolija N, Milošević M. The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS. in Science of Sintering. 2023;.
doi:10.2298/SOS230508031J .

Jevtić, Ivana, Mladenović, Goran, Milovanović, Aleksa, Trajković, Isaak, Đurković, Marija, Korolija, Nenad, Milošević, Miloš, "The influence of printing orientation on the flexural strength of PA 12 specimens produced by SLS" in Science of Sintering (2023),
https://doi.org/10.2298/SOS230508031J . .

TY  - CONF
AU  - Bojović, Božica
AU  - Golubović, Zorana
AU  - Jevtić, Ivana
AU  - Mišković, Žarko
AU  - Sedmak, Aleksandar
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7418
AB  - Considering that additive manufacturing technology, has evolved significantly over the past few decades, understanding of materials mechanical properties became important part of researches with the goal of further improvement of production Among the seven different AM technologies, in this research is used digital light processing (DLP) 3D printing process with LCD projector. The thermoplastic polymer material acrylonitrile butadiene styrene (ABS) is a widely used material for 3D plastics printing, and in this study, it is chosen in the resin form. So far, this type of material has not been sufficiently studied, and the aim of this study was to determine the mechanical properties for two different specimens’ building orientations (45° and 90°). Specimen’s geometry is chosen according to the respective standards for mechanical testing’s. Because of the difficulties and warping which occur when printing the flat, thin and long specimens, orientation ‘on edge’, i.e., 90° is chosen, as well as the 45° orientation, for comparison. Tensile, three point bending and compression mechanical tests were performed and Matlab is used to create stress-strain curves. Additionally, microscopy is performed for more comprehensive insight of the behaviour of the ABS resin printed via DLP-LCD technology. Comparison of mechanical properties for two orientations leads to the overview of printing parameters which result in better mechanical properties regard to specific application. Better behaviour and compression mechanical properties are noticed in 90° orientation printed ABS resin specimens, compared to 45° ones, while flexure behaviour of ABS is the same regardless to building orientation.
C3  - ICPES 2023 39th International Conference on Production Engineering of Serbia
T1  - MECHANICAL PROPERTIES VARIATION DUE TO BUILDING ORIENTATION OF ABS RESIN MATERIAL
EP  - 71
SP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7418
ER  - 

@conference{
author = "Bojović, Božica and Golubović, Zorana and Jevtić, Ivana and Mišković, Žarko and Sedmak, Aleksandar",
year = "2023",
abstract = "Considering that additive manufacturing technology, has evolved significantly over the past few decades, understanding of materials mechanical properties became important part of researches with the goal of further improvement of production Among the seven different AM technologies, in this research is used digital light processing (DLP) 3D printing process with LCD projector. The thermoplastic polymer material acrylonitrile butadiene styrene (ABS) is a widely used material for 3D plastics printing, and in this study, it is chosen in the resin form. So far, this type of material has not been sufficiently studied, and the aim of this study was to determine the mechanical properties for two different specimens’ building orientations (45° and 90°). Specimen’s geometry is chosen according to the respective standards for mechanical testing’s. Because of the difficulties and warping which occur when printing the flat, thin and long specimens, orientation ‘on edge’, i.e., 90° is chosen, as well as the 45° orientation, for comparison. Tensile, three point bending and compression mechanical tests were performed and Matlab is used to create stress-strain curves. Additionally, microscopy is performed for more comprehensive insight of the behaviour of the ABS resin printed via DLP-LCD technology. Comparison of mechanical properties for two orientations leads to the overview of printing parameters which result in better mechanical properties regard to specific application. Better behaviour and compression mechanical properties are noticed in 90° orientation printed ABS resin specimens, compared to 45° ones, while flexure behaviour of ABS is the same regardless to building orientation.",
journal = "ICPES 2023 39th International Conference on Production Engineering of Serbia",
title = "MECHANICAL PROPERTIES VARIATION DUE TO BUILDING ORIENTATION OF ABS RESIN MATERIAL",
pages = "71-67",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7418"
}

Bojović, B., Golubović, Z., Jevtić, I., Mišković, Ž.,& Sedmak, A.. (2023). MECHANICAL PROPERTIES VARIATION DUE TO BUILDING ORIENTATION OF ABS RESIN MATERIAL. in ICPES 2023 39th International Conference on Production Engineering of Serbia, 67-71.
https://hdl.handle.net/21.15107/rcub_machinery_7418

Bojović B, Golubović Z, Jevtić I, Mišković Ž, Sedmak A. MECHANICAL PROPERTIES VARIATION DUE TO BUILDING ORIENTATION OF ABS RESIN MATERIAL. in ICPES 2023 39th International Conference on Production Engineering of Serbia. 2023;:67-71.
https://hdl.handle.net/21.15107/rcub_machinery_7418 .

Bojović, Božica, Golubović, Zorana, Jevtić, Ivana, Mišković, Žarko, Sedmak, Aleksandar, "MECHANICAL PROPERTIES VARIATION DUE TO BUILDING ORIENTATION OF ABS RESIN MATERIAL" in ICPES 2023 39th International Conference on Production Engineering of Serbia (2023):67-71,
https://hdl.handle.net/21.15107/rcub_machinery_7418 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7012
AB  - SLS technology has become popular in various industries due to its ability to produce
complex components with less effort than traditional methods. The study used PA 12, a
commonly used material in SLS printing, to create three types of specimens that were tested
for their mechanical characteristics. The specimens were designed based on ISO standards
(i.e. ISO 178, ISO 527-2, ISO 604) and printed on the Fuse 1 (FormLabs, Summerville, MA)
3D printer in four batches. These batches differed according to the printing orientation (i.e.
horizontal and vertical) and the printing location (i.e. in the middle and on the edge of the
powder bed). The printed specimens were then tested on subjected to a standard tensile
testing machine (SHIMADZU AGS-X 100kN).
The study found that the specimens printed according to ISO 178 standard vertically in the
middle of the powder bed had the smallest deviations in mechanical characteristics. On the
other hand, the specimens printed based on ISO 604 standard had the biggest deviations.
These findings suggest that the printing orientation and location on the powder bed can affect
the mechanical properties of SLS-printed components
PB  - Serbian Ceramic Society
C3  - Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI
T1  - The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology
EP  - 82
SP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7012
ER  - 

@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanović, Aleksa and Trajković, Isaak",
year = "2023",
abstract = "SLS technology has become popular in various industries due to its ability to produce
complex components with less effort than traditional methods. The study used PA 12, a
commonly used material in SLS printing, to create three types of specimens that were tested
for their mechanical characteristics. The specimens were designed based on ISO standards
(i.e. ISO 178, ISO 527-2, ISO 604) and printed on the Fuse 1 (FormLabs, Summerville, MA)
3D printer in four batches. These batches differed according to the printing orientation (i.e.
horizontal and vertical) and the printing location (i.e. in the middle and on the edge of the
powder bed). The printed specimens were then tested on subjected to a standard tensile
testing machine (SHIMADZU AGS-X 100kN).
The study found that the specimens printed according to ISO 178 standard vertically in the
middle of the powder bed had the smallest deviations in mechanical characteristics. On the
other hand, the specimens printed based on ISO 604 standard had the biggest deviations.
These findings suggest that the printing orientation and location on the powder bed can affect
the mechanical properties of SLS-printed components",
publisher = "Serbian Ceramic Society",
journal = "Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI",
title = "The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology",
pages = "82-82",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7012"
}

Jevtić, I., Mladenović, G., Milošević, M., Milovanović, A.,& Trajković, I.. (2023). The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology. in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI
Serbian Ceramic Society., 82-82.
https://hdl.handle.net/21.15107/rcub_machinery_7012

Jevtić I, Mladenović G, Milošević M, Milovanović A, Trajković I. The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology. in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI. 2023;:82-82.
https://hdl.handle.net/21.15107/rcub_machinery_7012 .

Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanović, Aleksa, Trajković, Isaak, "The influence of print orientation and print location on the mechanical characteristics of specimens obtained by SLS technology" in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI (2023):82-82,
https://hdl.handle.net/21.15107/rcub_machinery_7012 .

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Golubović, Zorana
AU  - Mladenović, Goran
AU  - Berto, Filippo
AU  - Sedmak, Aleksandar
AU  - Milovanović, Aleksa
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7011
AB  - Selective laser sintering (SLS) is one of the additive manufacturing technologies dedicated to the production of high-quality parts with complex geometries. Here, polyamide 12 (PA12) is a commonly used material, for manufacturing parts with sufficient mechanical and thermal properties. In SLS, many manufacturing parameters have an effect on the mechanical properties of final parts. Even the decision regarding the orientation of a part in a powder bed may have a significant effect on the mechanical properties. In this research, the influence of horizontal (H) and vertical (V) printing orientations on the ultimate tensile strength (UTS) of fabricated PA12 specimens are examined. Our research findings show that H specimens exhibit larger deformations and smaller UTS value scatter in comparison with V specimens. Also, worth pointing out is the fact that V-oriented specimens have a higher elastic modulus. One can assume that the sintering process is more effective in V specimens, due to a more uniform laser beam trajectory than in the H specimens' case.
PB  - Springer
T2  - Journal of Mechanical and Technology
T1  - Printing orientation influence on tensile strength of PA12 specimens obtained by SLS
EP  - 6
IS  - 11
SP  - 1
VL  - 37
DO  - 10.1007/s12206-023-2306-4
ER  - 

@article{
author = "Jevtić, Ivana and Golubović, Zorana and Mladenović, Goran and Berto, Filippo and Sedmak, Aleksandar and Milovanović, Aleksa and Milošević, Miloš",
year = "2023",
abstract = "Selective laser sintering (SLS) is one of the additive manufacturing technologies dedicated to the production of high-quality parts with complex geometries. Here, polyamide 12 (PA12) is a commonly used material, for manufacturing parts with sufficient mechanical and thermal properties. In SLS, many manufacturing parameters have an effect on the mechanical properties of final parts. Even the decision regarding the orientation of a part in a powder bed may have a significant effect on the mechanical properties. In this research, the influence of horizontal (H) and vertical (V) printing orientations on the ultimate tensile strength (UTS) of fabricated PA12 specimens are examined. Our research findings show that H specimens exhibit larger deformations and smaller UTS value scatter in comparison with V specimens. Also, worth pointing out is the fact that V-oriented specimens have a higher elastic modulus. One can assume that the sintering process is more effective in V specimens, due to a more uniform laser beam trajectory than in the H specimens' case.",
publisher = "Springer",
journal = "Journal of Mechanical and Technology",
title = "Printing orientation influence on tensile strength of PA12 specimens obtained by SLS",
pages = "6-1",
number = "11",
volume = "37",
doi = "10.1007/s12206-023-2306-4"
}

Jevtić, I., Golubović, Z., Mladenović, G., Berto, F., Sedmak, A., Milovanović, A.,& Milošević, M.. (2023). Printing orientation influence on tensile strength of PA12 specimens obtained by SLS. in Journal of Mechanical and Technology
Springer., 37(11), 1-6.
https://doi.org/10.1007/s12206-023-2306-4

Jevtić I, Golubović Z, Mladenović G, Berto F, Sedmak A, Milovanović A, Milošević M. Printing orientation influence on tensile strength of PA12 specimens obtained by SLS. in Journal of Mechanical and Technology. 2023;37(11):1-6.
doi:10.1007/s12206-023-2306-4 .

Jevtić, Ivana, Golubović, Zorana, Mladenović, Goran, Berto, Filippo, Sedmak, Aleksandar, Milovanović, Aleksa, Milošević, Miloš, "Printing orientation influence on tensile strength of PA12 specimens obtained by SLS" in Journal of Mechanical and Technology, 37, no. 11 (2023):1-6,
https://doi.org/10.1007/s12206-023-2306-4 . .

TY  - CONF
AU  - Mladenović, Goran
AU  - Puzović, Radovan
AU  - Stojanović, Jagoš
AU  - Jevtić, Ivana
AU  - Popović, Mihajlo
AU  - Pjević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7113
AB  - Parts with free form surfaces are commonly used in wide area of engineering, not only in mechanical
engineering. When it comes to the area of mechanical engineering, the main problem is how to produce such
parts. One of the commonly used methods is milling with ball end mill cutter on 3, 4 or 5 axis mill machines.
A usual approach for production of such parts is to generate NC code in some of commercial CAM software
and afterwards load it on CNC machine. In this paper is presented the software for automatic technology
design which is developed at the department of production engineering of the Faculty of Mechanical
engineering in Belgrade, Serbia. Based on loaded CAD models of the final product and workpiece which will
be used for production software automatically gives the NC code for machining according to implemented
machining strategies. The core of software is a module for machining simulation process which allow
multicriteria optimization method for machining. Verification of the generated NC code was done on
horizontal machining center and after that measurement of machined part where was verified quality of
machined part in predefined tolerances
PB  - UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES
C3  - 39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023
T1  - An approach for automatic free form surface milling machining technology design
EP  - 230
SP  - 227
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7113
ER  - 

@conference{
author = "Mladenović, Goran and Puzović, Radovan and Stojanović, Jagoš and Jevtić, Ivana and Popović, Mihajlo and Pjević, Miloš",
year = "2023",
abstract = "Parts with free form surfaces are commonly used in wide area of engineering, not only in mechanical
engineering. When it comes to the area of mechanical engineering, the main problem is how to produce such
parts. One of the commonly used methods is milling with ball end mill cutter on 3, 4 or 5 axis mill machines.
A usual approach for production of such parts is to generate NC code in some of commercial CAM software
and afterwards load it on CNC machine. In this paper is presented the software for automatic technology
design which is developed at the department of production engineering of the Faculty of Mechanical
engineering in Belgrade, Serbia. Based on loaded CAD models of the final product and workpiece which will
be used for production software automatically gives the NC code for machining according to implemented
machining strategies. The core of software is a module for machining simulation process which allow
multicriteria optimization method for machining. Verification of the generated NC code was done on
horizontal machining center and after that measurement of machined part where was verified quality of
machined part in predefined tolerances",
publisher = "UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES",
journal = "39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023",
title = "An approach for automatic free form surface milling machining technology design",
pages = "230-227",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7113"
}

Mladenović, G., Puzović, R., Stojanović, J., Jevtić, I., Popović, M.,& Pjević, M.. (2023). An approach for automatic free form surface milling machining technology design. in 39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023
UNIVERSITY OF NOVI SAD, FACULTY OF TECHNICAL SCIENCES., 227-230.
https://hdl.handle.net/21.15107/rcub_machinery_7113

Mladenović G, Puzović R, Stojanović J, Jevtić I, Popović M, Pjević M. An approach for automatic free form surface milling machining technology design. in 39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023. 2023;:227-230.
https://hdl.handle.net/21.15107/rcub_machinery_7113 .

Mladenović, Goran, Puzović, Radovan, Stojanović, Jagoš, Jevtić, Ivana, Popović, Mihajlo, Pjević, Miloš, "An approach for automatic free form surface milling machining technology design" in 39th INTERNATIONAL CONFERENCE ON PRODUCTION ENGINEERING OF SERBIA - ICPES 2023 (2023):227-230,
https://hdl.handle.net/21.15107/rcub_machinery_7113 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7086
AB  - The purpose of this research is to investigate the mechanical properties of Additive Manufacturing(AM)parts. The 3D printer used in this study is Fuse 1 (FormLabs, Summerville, MA), which utilizes theSLS(Selective Laser Sintering) technology. This technology allows the production of objects with different shapesand dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. Thepowder layer thickness during printing was 110 microns. The mechanical characteristics of a specifictypeofspecimen, which conforms to the ISO 604 standard for compressive specimens, were examined. Thecompressive specimens have dimensions of Ø10x20 [mm]. Four batches of specimens were produced, eachdiffering in printing orientation (i.e. horizontal and vertical) and printing location (i.e. printed on the edgeandin the middle of the powder bed). The material used for printing the specimens is polyamide (PA12), whichhas a compressive strength is 13/24/55 MPa at 1%/2%/5%. The specimens were subjected to a standardtensiletesting machine (SHIMADZU AGS-X 100kN) after printing. Furthermore, the results of the testing also showed significant variations in the compressive strengthofthe specimens at different levels of elongation. At 1% and 2% elongation, the compressive strengthvaluesdisplayed large deviations, which suggests that the parts may not be able to withstand highlevelsofdeformation at these points. However, at 5% elongation, the values were much closer to the expectedvaluesfound in the literature
C3  - 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023)
T1  - Mechanical characteristics of compressive specimens obtained by SLS technology
EP  - 104
SP  - 104
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7086
ER  - 

@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanović, Aleksa",
year = "2023",
abstract = "The purpose of this research is to investigate the mechanical properties of Additive Manufacturing(AM)parts. The 3D printer used in this study is Fuse 1 (FormLabs, Summerville, MA), which utilizes theSLS(Selective Laser Sintering) technology. This technology allows the production of objects with different shapesand dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. Thepowder layer thickness during printing was 110 microns. The mechanical characteristics of a specifictypeofspecimen, which conforms to the ISO 604 standard for compressive specimens, were examined. Thecompressive specimens have dimensions of Ø10x20 [mm]. Four batches of specimens were produced, eachdiffering in printing orientation (i.e. horizontal and vertical) and printing location (i.e. printed on the edgeandin the middle of the powder bed). The material used for printing the specimens is polyamide (PA12), whichhas a compressive strength is 13/24/55 MPa at 1%/2%/5%. The specimens were subjected to a standardtensiletesting machine (SHIMADZU AGS-X 100kN) after printing. Furthermore, the results of the testing also showed significant variations in the compressive strengthofthe specimens at different levels of elongation. At 1% and 2% elongation, the compressive strengthvaluesdisplayed large deviations, which suggests that the parts may not be able to withstand highlevelsofdeformation at these points. However, at 5% elongation, the values were much closer to the expectedvaluesfound in the literature",
journal = "2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023)",
title = "Mechanical characteristics of compressive specimens obtained by SLS technology",
pages = "104-104",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7086"
}

Jevtić, I., Mladenović, G., Milošević, M.,& Milovanović, A.. (2023). Mechanical characteristics of compressive specimens obtained by SLS technology. in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023), 104-104.
https://hdl.handle.net/21.15107/rcub_machinery_7086

Jevtić I, Mladenović G, Milošević M, Milovanović A. Mechanical characteristics of compressive specimens obtained by SLS technology. in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023). 2023;:104-104.
https://hdl.handle.net/21.15107/rcub_machinery_7086 .

Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanović, Aleksa, "Mechanical characteristics of compressive specimens obtained by SLS technology" in 2nd International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023) (2023):104-104,
https://hdl.handle.net/21.15107/rcub_machinery_7086 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Trajković, Isaak
AU  - Milovanović, Aleksa
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6899
AB  - SLS technology is a popular choice in various industries worldwide because of its ability to produce complex geometry components with less effort when compared to conventional methods. The technology involves using materials in powder forms, such as polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. In this study, the research focuses on compressive PA12 specimens with CAD model dimensions selected according to the ISO 604 standard, with bulk dimensions of Ø10x20 [mm]. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs the SLS technology. This printer is capable of producing objects with different shapes and dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. The research involves producing four batches of specimens, each differing in printing orientation (i.e., horizontal and vertical) and printing location (i.e., printed on the edge and in the middle of the powder bed). The printed specimens are scanned, and the obtained scans are compared with the original CAD model in the GOM Inspect program. The highest deviations in all four specimen series are in height, ranging from 0.1 up to 0.15 mm. In the case of vertical specimens printed in the middle of the powder bed, there are also deviations in the width of the specimen.
PB  - University of Belgrade – Faculty of Mechanical Engineering
C3  - 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023
T1  - Deviations Measurements of SLS PA Material at Compressive Specimens
EP  - 8
SP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6899
ER  - 

@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Trajković, Isaak and Milovanović, Aleksa",
year = "2023",
abstract = "SLS technology is a popular choice in various industries worldwide because of its ability to produce complex geometry components with less effort when compared to conventional methods. The technology involves using materials in powder forms, such as polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. In this study, the research focuses on compressive PA12 specimens with CAD model dimensions selected according to the ISO 604 standard, with bulk dimensions of Ø10x20 [mm]. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs the SLS technology. This printer is capable of producing objects with different shapes and dimensions simultaneously, provided that they are printed at a minimum distance of 5 [mm] apart. The research involves producing four batches of specimens, each differing in printing orientation (i.e., horizontal and vertical) and printing location (i.e., printed on the edge and in the middle of the powder bed). The printed specimens are scanned, and the obtained scans are compared with the original CAD model in the GOM Inspect program. The highest deviations in all four specimen series are in height, ranging from 0.1 up to 0.15 mm. In the case of vertical specimens printed in the middle of the powder bed, there are also deviations in the width of the specimen.",
publisher = "University of Belgrade – Faculty of Mechanical Engineering",
journal = "7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023",
title = "Deviations Measurements of SLS PA Material at Compressive Specimens",
pages = "8-8",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6899"
}

Jevtić, I., Mladenović, G., Milošević, M., Trajković, I.,& Milovanović, A.. (2023). Deviations Measurements of SLS PA Material at Compressive Specimens. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023
University of Belgrade – Faculty of Mechanical Engineering., 8-8.
https://hdl.handle.net/21.15107/rcub_machinery_6899

Jevtić I, Mladenović G, Milošević M, Trajković I, Milovanović A. Deviations Measurements of SLS PA Material at Compressive Specimens. in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023. 2023;:8-8.
https://hdl.handle.net/21.15107/rcub_machinery_6899 .

Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Trajković, Isaak, Milovanović, Aleksa, "Deviations Measurements of SLS PA Material at Compressive Specimens" in 7th International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2023, The Book Of Abstracts, Zlatibor, July 04- July 07, 2023 (2023):8-8,
https://hdl.handle.net/21.15107/rcub_machinery_6899 .

TY  - CONF
AU  - Kolesar, Svetozar
AU  - Jevtić, Ivana
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7087
AB  - Recently, there has been an increasing development and progress of additive technologies,
especially Wire Laser Metal Deposition (W-LMD). This technology is used for the production
of metal components, which is an alternative to more well-known powder-based processes.
W-LMD uses a laser to melt the wire, depositing it in layers on the surface of the part being
produced. The production of parts with this technology can be realized in two ways: using a
single wire or dual wire - where it is possible to use different metal materials by printing one
part. The most famous printers used for the production of metal parts with W-LMD
technology are Meltio (Jaén, Spain). These printers use a wide range of materials, the most
famous of which are Stainless Steel 316L, Stainless Steel 308, Mild Steel ER70S, Titanium 64,
and Nickel 718 (Inconel). Materials such as copper, aluminum, and refractory materials are
still being developed.
PB  - University of Belgrade, Faculty of Mechanical Engineering
C3  - 3rd International Workshop on Reliability and Design of Additively Manufactured Materials RdAMM22
T1  - Wire – Laser Metal 3D Printing – a disruptive directed energy deposition technology by Meltio
EP  - 14
SP  - 14
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7087
ER  - 

@conference{
author = "Kolesar, Svetozar and Jevtić, Ivana",
year = "2022",
abstract = "Recently, there has been an increasing development and progress of additive technologies,
especially Wire Laser Metal Deposition (W-LMD). This technology is used for the production
of metal components, which is an alternative to more well-known powder-based processes.
W-LMD uses a laser to melt the wire, depositing it in layers on the surface of the part being
produced. The production of parts with this technology can be realized in two ways: using a
single wire or dual wire - where it is possible to use different metal materials by printing one
part. The most famous printers used for the production of metal parts with W-LMD
technology are Meltio (Jaén, Spain). These printers use a wide range of materials, the most
famous of which are Stainless Steel 316L, Stainless Steel 308, Mild Steel ER70S, Titanium 64,
and Nickel 718 (Inconel). Materials such as copper, aluminum, and refractory materials are
still being developed.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering",
journal = "3rd International Workshop on Reliability and Design of Additively Manufactured Materials RdAMM22",
title = "Wire – Laser Metal 3D Printing – a disruptive directed energy deposition technology by Meltio",
pages = "14-14",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7087"
}

Kolesar, S.,& Jevtić, I.. (2022). Wire – Laser Metal 3D Printing – a disruptive directed energy deposition technology by Meltio. in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials RdAMM22
University of Belgrade, Faculty of Mechanical Engineering., 14-14.
https://hdl.handle.net/21.15107/rcub_machinery_7087

Kolesar S, Jevtić I. Wire – Laser Metal 3D Printing – a disruptive directed energy deposition technology by Meltio. in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials RdAMM22. 2022;:14-14.
https://hdl.handle.net/21.15107/rcub_machinery_7087 .

Kolesar, Svetozar, Jevtić, Ivana, "Wire – Laser Metal 3D Printing – a disruptive directed energy deposition technology by Meltio" in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials RdAMM22 (2022):14-14,
https://hdl.handle.net/21.15107/rcub_machinery_7087 .

TY  - CONF
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Travica, Milan
AU  - Rakin, Marko
AU  - Jevtić, Ivana
AU  - Sedmak, Aleksandar
AU  - Međo, Bojan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6875
AB  - This work presents the fabrication and tensile testing of polyamide specimens fabricated by
selective laser sintering (SLS). Two geometries are considered: SENT (Single Edge Notched
Tension) and PRNT (Pipe Ring Notched Tension) specimens. Experimental testing of these
specimens is a step in development of a new method for testing of properties of the pipeline
materials. The samples were produced by SLS (Selective Laser Sintering) additive production
technique. The samples were made from polyamide PA12 on EOS Formiga P100 machine
(fabrication parameters: laser power 30 W, print layer height 0.1 mm, scanning speed 1.6-5
m/s, operating temperature 170⁰C). Testing was performed in the displacement control on a
universal tensile testing machine Shimadzu AGS - X. On this machine, the values of force as
well as the values of stress and strain were obtained directly from the Trapezium X software.
Special attention in this work is devoted to two important aspects: fixing of the ring specimen
for testing and influence of friction between the specimen and the tool. The results obtained
on the examined specimens indicate that this study is a valuable contribution for further
development and verification of the new fracture resistance testing procedure for different
pipeline materials.
Acknowledgement:
PB  - Serbian Ceramic Society
T1  - Laser sintered polyamide specimens - fabrication and tensile testing conditions on different geometries
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6875
ER  - 

@conference{
author = "Trajković, Isaak and Milošević, Miloš and Travica, Milan and Rakin, Marko and Jevtić, Ivana and Sedmak, Aleksandar and Međo, Bojan",
year = "2022",
abstract = "This work presents the fabrication and tensile testing of polyamide specimens fabricated by
selective laser sintering (SLS). Two geometries are considered: SENT (Single Edge Notched
Tension) and PRNT (Pipe Ring Notched Tension) specimens. Experimental testing of these
specimens is a step in development of a new method for testing of properties of the pipeline
materials. The samples were produced by SLS (Selective Laser Sintering) additive production
technique. The samples were made from polyamide PA12 on EOS Formiga P100 machine
(fabrication parameters: laser power 30 W, print layer height 0.1 mm, scanning speed 1.6-5
m/s, operating temperature 170⁰C). Testing was performed in the displacement control on a
universal tensile testing machine Shimadzu AGS - X. On this machine, the values of force as
well as the values of stress and strain were obtained directly from the Trapezium X software.
Special attention in this work is devoted to two important aspects: fixing of the ring specimen
for testing and influence of friction between the specimen and the tool. The results obtained
on the examined specimens indicate that this study is a valuable contribution for further
development and verification of the new fracture resistance testing procedure for different
pipeline materials.
Acknowledgement:",
publisher = "Serbian Ceramic Society",
title = "Laser sintered polyamide specimens - fabrication and tensile testing conditions on different geometries",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6875"
}

Trajković, I., Milošević, M., Travica, M., Rakin, M., Jevtić, I., Sedmak, A.,& Međo, B.. (2022). Laser sintered polyamide specimens - fabrication and tensile testing conditions on different geometries. 
Serbian Ceramic Society..
https://hdl.handle.net/21.15107/rcub_machinery_6875

Trajković I, Milošević M, Travica M, Rakin M, Jevtić I, Sedmak A, Međo B. Laser sintered polyamide specimens - fabrication and tensile testing conditions on different geometries. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_6875 .

Trajković, Isaak, Milošević, Miloš, Travica, Milan, Rakin, Marko, Jevtić, Ivana, Sedmak, Aleksandar, Međo, Bojan, "Laser sintered polyamide specimens - fabrication and tensile testing conditions on different geometries" (2022),
https://hdl.handle.net/21.15107/rcub_machinery_6875 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanovic, Aleksa
AU  - Trajković, Isaak
AU  - Travica, Milan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6931
AB  - The aim of this  paper  is to  determine the  mechanical  characteristics of parts  obtained  by Additive   Manufacturing    (AM). All  specimens  were   printed   on   a  Fuse   1 (FormLabs, Summerville, MA) 30 printer. This AM technology is SLS (Selective Laser Sintering). With this technology, objects of different shapes and dimensions can be produced at the same time. The only condition  is that during printing, the parts must be at least 5 [mm] apart from each other. The thickness ofthe powder layer during  printing was 110 microns. In this paper, one type of specimens  are  used  to  determine the  mechanical  characteristics, the  dimensions of which were  chosen  according  to  specific standard. This standard is ISO 178  for  3-point bending specimens. The dimensions of the  bending  specimens are  96x8x4  [mm]. These  specimens were produced in four batches, differing in printing  orientation (horizontal and vertical)  and printing  location  (printed on the edge and  in the  middle  of the  powder  bed). The material used for printing  the specimens is polyamide (PA 12). The flexural strength of this material  is
66  MPa. After  printing,     specimens   were  tested   on  a  standard  tensile  testing   machine
(SHIMADZU AGS-X 100kN).
In the case of vertical bending specimens  printed  in the middle, the flexural strength after the test  was 65.15  MPa, and for this type  of specimens  this is the smallest  deviation from the value given in the literature. The greatest deviations of the flexural  strength values  are for vertical  specimens    printed on  the  edge, where  the  flexural  strength is  58  MPa, and  for horizontal  specimens printed in the middle, the flexural strength is 81.7 MPa.
PB  - University of Belgrade – Faculty of Mechanical Engineering
C3  - 3rd International Workshop on Reliability and Design of Additively Manufactured Materials, The Book Of Abstracts, 4-6. October 2022, Belgrade, Serbia
T1  - Mechanical characteristics of parts obtained by sls printing technology
EP  - 51
SP  - 51
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6931
ER  - 

@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanovic, Aleksa and Trajković, Isaak and Travica, Milan",
year = "2022",
abstract = "The aim of this  paper  is to  determine the  mechanical  characteristics of parts  obtained  by Additive   Manufacturing    (AM). All  specimens  were   printed   on   a  Fuse   1 (FormLabs, Summerville, MA) 30 printer. This AM technology is SLS (Selective Laser Sintering). With this technology, objects of different shapes and dimensions can be produced at the same time. The only condition  is that during printing, the parts must be at least 5 [mm] apart from each other. The thickness ofthe powder layer during  printing was 110 microns. In this paper, one type of specimens  are  used  to  determine the  mechanical  characteristics, the  dimensions of which were  chosen  according  to  specific standard. This standard is ISO 178  for  3-point bending specimens. The dimensions of the  bending  specimens are  96x8x4  [mm]. These  specimens were produced in four batches, differing in printing  orientation (horizontal and vertical)  and printing  location  (printed on the edge and  in the  middle  of the  powder  bed). The material used for printing  the specimens is polyamide (PA 12). The flexural strength of this material  is
66  MPa. After  printing,     specimens   were  tested   on  a  standard  tensile  testing   machine
(SHIMADZU AGS-X 100kN).
In the case of vertical bending specimens  printed  in the middle, the flexural strength after the test  was 65.15  MPa, and for this type  of specimens  this is the smallest  deviation from the value given in the literature. The greatest deviations of the flexural  strength values  are for vertical  specimens    printed on  the  edge, where  the  flexural  strength is  58  MPa, and  for horizontal  specimens printed in the middle, the flexural strength is 81.7 MPa.",
publisher = "University of Belgrade – Faculty of Mechanical Engineering",
journal = "3rd International Workshop on Reliability and Design of Additively Manufactured Materials, The Book Of Abstracts, 4-6. October 2022, Belgrade, Serbia",
title = "Mechanical characteristics of parts obtained by sls printing technology",
pages = "51-51",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6931"
}

Jevtić, I., Mladenović, G., Milošević, M., Milovanovic, A., Trajković, I.,& Travica, M.. (2022). Mechanical characteristics of parts obtained by sls printing technology. in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials, The Book Of Abstracts, 4-6. October 2022, Belgrade, Serbia
University of Belgrade – Faculty of Mechanical Engineering., 51-51.
https://hdl.handle.net/21.15107/rcub_machinery_6931

Jevtić I, Mladenović G, Milošević M, Milovanovic A, Trajković I, Travica M. Mechanical characteristics of parts obtained by sls printing technology. in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials, The Book Of Abstracts, 4-6. October 2022, Belgrade, Serbia. 2022;:51-51.
https://hdl.handle.net/21.15107/rcub_machinery_6931 .

Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanovic, Aleksa, Trajković, Isaak, Travica, Milan, "Mechanical characteristics of parts obtained by sls printing technology" in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials, The Book Of Abstracts, 4-6. October 2022, Belgrade, Serbia (2022):51-51,
https://hdl.handle.net/21.15107/rcub_machinery_6931 .

TY  - CONF
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Travica, Milan
AU  - Rakin, Marko
AU  - Jevtić, Ivana
AU  - Sedmak, Aleksandar
AU  - Međo, Bojan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5929
AB  - This work presents the difference in the values of fracture mechanics parameters obtained by
testing of cylindrical specimens with a sharp notch, cut on the tip of a wider groove. The
samples were obtained using two different additive manufacturing techniques. The first type
of samples was obtained by the FDM (Fused Deposition Modeling) method, on the German
REPRAP X400 device with an average accuracy of 0.25 mm. The second type of samples was
made using the SLS (Selective Laser Sintering) method on the EOS Formiga P100 device with
a production precision of 0.08 mm. Regardless of the difference in manufacturing techniques,
the direction and orientation of the samples was identical. The samples were prepared so that
during loading the fibers are loaded in tension, i.e. axially. Different lengths of the sharp
notches were fabricated axially on the samples. The values of fracture mechanics parameters
such as CMOD (Crack Mouth Opening Displacement) and CTOD-5 (Crack Tip Opening
Displacement obtained using the -5 technique) were obtained using the digital image
correlation method. The obtained parameters, except for mutual correlation, were also used
for the verification of numerical results. In the future work, a procedure for determination of
energy-based fracture mechanics parameters will be developed for this sample geometry.
PB  - Faculty of Mechanical Engineering, Univ. of Belgrade
C3  - 3rd International Workshop on Reliability and Design of Additively Manufactured Materials – RdAMM2 Belgrade, Serbia, 4th –6th October 2022
T1  - Determining fracture mechanics parameters using the digital image correlation method on cylindrical samples produced by different additive manufacturing techniques
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5929
ER  - 

@conference{
author = "Trajković, Isaak and Milošević, Miloš and Travica, Milan and Rakin, Marko and Jevtić, Ivana and Sedmak, Aleksandar and Međo, Bojan",
year = "2022",
abstract = "This work presents the difference in the values of fracture mechanics parameters obtained by
testing of cylindrical specimens with a sharp notch, cut on the tip of a wider groove. The
samples were obtained using two different additive manufacturing techniques. The first type
of samples was obtained by the FDM (Fused Deposition Modeling) method, on the German
REPRAP X400 device with an average accuracy of 0.25 mm. The second type of samples was
made using the SLS (Selective Laser Sintering) method on the EOS Formiga P100 device with
a production precision of 0.08 mm. Regardless of the difference in manufacturing techniques,
the direction and orientation of the samples was identical. The samples were prepared so that
during loading the fibers are loaded in tension, i.e. axially. Different lengths of the sharp
notches were fabricated axially on the samples. The values of fracture mechanics parameters
such as CMOD (Crack Mouth Opening Displacement) and CTOD-5 (Crack Tip Opening
Displacement obtained using the -5 technique) were obtained using the digital image
correlation method. The obtained parameters, except for mutual correlation, were also used
for the verification of numerical results. In the future work, a procedure for determination of
energy-based fracture mechanics parameters will be developed for this sample geometry.",
publisher = "Faculty of Mechanical Engineering, Univ. of Belgrade",
journal = "3rd International Workshop on Reliability and Design of Additively Manufactured Materials – RdAMM2 Belgrade, Serbia, 4th –6th October 2022",
title = "Determining fracture mechanics parameters using the digital image correlation method on cylindrical samples produced by different additive manufacturing techniques",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5929"
}

Trajković, I., Milošević, M., Travica, M., Rakin, M., Jevtić, I., Sedmak, A.,& Međo, B.. (2022). Determining fracture mechanics parameters using the digital image correlation method on cylindrical samples produced by different additive manufacturing techniques. in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials – RdAMM2 Belgrade, Serbia, 4th –6th October 2022
Faculty of Mechanical Engineering, Univ. of Belgrade..
https://hdl.handle.net/21.15107/rcub_machinery_5929

Trajković I, Milošević M, Travica M, Rakin M, Jevtić I, Sedmak A, Međo B. Determining fracture mechanics parameters using the digital image correlation method on cylindrical samples produced by different additive manufacturing techniques. in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials – RdAMM2 Belgrade, Serbia, 4th –6th October 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_5929 .

Trajković, Isaak, Milošević, Miloš, Travica, Milan, Rakin, Marko, Jevtić, Ivana, Sedmak, Aleksandar, Međo, Bojan, "Determining fracture mechanics parameters using the digital image correlation method on cylindrical samples produced by different additive manufacturing techniques" in 3rd International Workshop on Reliability and Design of Additively Manufactured Materials – RdAMM2 Belgrade, Serbia, 4th –6th October 2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_5929 .

TY  - CONF
AU  - Mladenović, Goran
AU  - Puzović, Radovan
AU  - Pjević, Miloš
AU  - Popović, Mihajlo
AU  - Jevtić, Ivana
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5326
AB  - Several years ago, research has begun in the field of free form surface machining at the Production engineering department at the Faculty of Mechanical Engineering in Belgrade. In this research, cases with ball end mill cutter machining were analysed, especially when it is possible to machine with maximal cutter diameter loaded from software database. On this way, it is possible to obtain an approximate shape of the free form surface faster than machining with ball end mill cutter. Using developed strategies for rough machining it is possible to reduce machining time and according to this reducing the cost of production and the cost of final product. In previously developed CAM application, new machining strategy was implemented and NC code was generated using that application. Experimental verification of generated NC code was performed on the CNC milling machine. After machining, measurement of produced part was performed and it was concluded that machining was performed in defined tolerances
PB  - University of Belgrade, faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies - Book of Abstracts
T1  - Strategies development for rough milling in free form surfaces machining
EP  - 54
SP  - 54
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5326
ER  - 

@conference{
author = "Mladenović, Goran and Puzović, Radovan and Pjević, Miloš and Popović, Mihajlo and Jevtić, Ivana",
year = "2022",
abstract = "Several years ago, research has begun in the field of free form surface machining at the Production engineering department at the Faculty of Mechanical Engineering in Belgrade. In this research, cases with ball end mill cutter machining were analysed, especially when it is possible to machine with maximal cutter diameter loaded from software database. On this way, it is possible to obtain an approximate shape of the free form surface faster than machining with ball end mill cutter. Using developed strategies for rough machining it is possible to reduce machining time and according to this reducing the cost of production and the cost of final product. In previously developed CAM application, new machining strategy was implemented and NC code was generated using that application. Experimental verification of generated NC code was performed on the CNC milling machine. After machining, measurement of produced part was performed and it was concluded that machining was performed in defined tolerances",
publisher = "University of Belgrade, faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies - Book of Abstracts",
title = "Strategies development for rough milling in free form surfaces machining",
pages = "54-54",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5326"
}

Mladenović, G., Puzović, R., Pjević, M., Popović, M.,& Jevtić, I.. (2022). Strategies development for rough milling in free form surfaces machining. in International Conference of Experimental and Numerical Investigations and New Technologies - Book of Abstracts
University of Belgrade, faculty of Mechanical Engineering., 54-54.
https://hdl.handle.net/21.15107/rcub_machinery_5326

Mladenović G, Puzović R, Pjević M, Popović M, Jevtić I. Strategies development for rough milling in free form surfaces machining. in International Conference of Experimental and Numerical Investigations and New Technologies - Book of Abstracts. 2022;:54-54.
https://hdl.handle.net/21.15107/rcub_machinery_5326 .

Mladenović, Goran, Puzović, Radovan, Pjević, Miloš, Popović, Mihajlo, Jevtić, Ivana, "Strategies development for rough milling in free form surfaces machining" in International Conference of Experimental and Numerical Investigations and New Technologies - Book of Abstracts (2022):54-54,
https://hdl.handle.net/21.15107/rcub_machinery_5326 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Popović, Mihajlo
AU  - Mladenović, Goran
AU  - Pjević, Miloš
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5679
AB  - Generativni dizajn je jedan od oblika veštačke inteligencije koji nudi niz odgovarajućih rešenja za izbor geometrije dela, a na osnovu postavljene funkcije cilja i ograničenja, koja dovode do poboljšanja u skladu sa potrebama dizajna.  Upotreba aditivnih proizvodnih tehnologija dozvoljava njihovu implementaciju uz generativni dizajn, pošto sama tehnologija nudi širi spektar izrade geometrija konacnog dela u odnosu na konvencionalne proizvodne tehnologije. U ovom radu, radi primene generativnog dizajna korišćen je softver Creo Parametric, da bi se dobio poholjsani dizajn dela i kako bi se pripremila izrada dela korišcenjem aditivnih proizvodnih tehnologija.
PB  - Univerzitet u Beogradu - Mašinski Fakultet
C3  - 43. JUPITER konferencija - Zbornik radova
T1  - Generativni dizajn i primena aditivnih tehnologija u okruženju creo parametric
EP  - 2.38
SP  - 2.35
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5679
ER  - 

@conference{
author = "Jevtić, Ivana and Popović, Mihajlo and Mladenović, Goran and Pjević, Miloš and Milošević, Miloš and Milovanović, Aleksa",
year = "2022",
abstract = "Generativni dizajn je jedan od oblika veštačke inteligencije koji nudi niz odgovarajućih rešenja za izbor geometrije dela, a na osnovu postavljene funkcije cilja i ograničenja, koja dovode do poboljšanja u skladu sa potrebama dizajna.  Upotreba aditivnih proizvodnih tehnologija dozvoljava njihovu implementaciju uz generativni dizajn, pošto sama tehnologija nudi širi spektar izrade geometrija konacnog dela u odnosu na konvencionalne proizvodne tehnologije. U ovom radu, radi primene generativnog dizajna korišćen je softver Creo Parametric, da bi se dobio poholjsani dizajn dela i kako bi se pripremila izrada dela korišcenjem aditivnih proizvodnih tehnologija.",
publisher = "Univerzitet u Beogradu - Mašinski Fakultet",
journal = "43. JUPITER konferencija - Zbornik radova",
title = "Generativni dizajn i primena aditivnih tehnologija u okruženju creo parametric",
pages = "2.38-2.35",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5679"
}

Jevtić, I., Popović, M., Mladenović, G., Pjević, M., Milošević, M.,& Milovanović, A.. (2022). Generativni dizajn i primena aditivnih tehnologija u okruženju creo parametric. in 43. JUPITER konferencija - Zbornik radova
Univerzitet u Beogradu - Mašinski Fakultet., 2.35-2.38.
https://hdl.handle.net/21.15107/rcub_machinery_5679

Jevtić I, Popović M, Mladenović G, Pjević M, Milošević M, Milovanović A. Generativni dizajn i primena aditivnih tehnologija u okruženju creo parametric. in 43. JUPITER konferencija - Zbornik radova. 2022;:2.35-2.38.
https://hdl.handle.net/21.15107/rcub_machinery_5679 .

Jevtić, Ivana, Popović, Mihajlo, Mladenović, Goran, Pjević, Miloš, Milošević, Miloš, Milovanović, Aleksa, "Generativni dizajn i primena aditivnih tehnologija u okruženju creo parametric" in 43. JUPITER konferencija - Zbornik radova (2022):2.35-2.38,
https://hdl.handle.net/21.15107/rcub_machinery_5679 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
AU  - Travica, Milan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5834
AB  - SLS technology is widely used in several industries worldwide mainly due to its ability to 
manufacture complex geometry components with less effort compared to conventional 
methods. Such technology uses materials in powder form, the most common ones are 
polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. Research 
covers flexural PA12 specimens, with CAD model dimensions selected according to the ISO 
178 standard, with 96x8x4 [mm] in bulk. Printing was performed on Fuse 1 (FormLabs, 
Summerville, MA) machine with four batches, differing in printing orientation and printing 
location. Vertical and horizontal orientations are applied, and each orientation is combined 
with the printing location, i.e., in the middle and on the edge of the powder bed. Printed 
specimens are scanned and obtained scans are then compared with original CAD model in the 
GOM Inspect program. All four specimen batches have deviation maximum on lateral sides, 
where the surface is minimal. Nearly 0.42 mm deviations are present in horizontally printed 
specimens placed in the middle of the powder bed, and these values are maximal recorded 
deviations. Worth mentioning are vertical specimens printed in the middle, which show not 
only lateral deviations but posses 0.07 mm deviations on largest surface, i.e., on 96x8 mm 
one
PB  - Serbian Ceramic Society
C3  - The Tenth Serbian Ceramic Society Conference -Advanced Ceramics and Application
T1  - Deviation measurement of SLS PA material regarding location and  orientation of printing
EP  - 76
SP  - 76
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5834
ER  - 

@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanović, Aleksa and Trajković, Isaak and Travica, Milan",
year = "2022",
abstract = "SLS technology is widely used in several industries worldwide mainly due to its ability to 
manufacture complex geometry components with less effort compared to conventional 
methods. Such technology uses materials in powder form, the most common ones are 
polyamides (PA), polystyrenes, thermoplastic elastomers, and polyaryletherketones. Research 
covers flexural PA12 specimens, with CAD model dimensions selected according to the ISO 
178 standard, with 96x8x4 [mm] in bulk. Printing was performed on Fuse 1 (FormLabs, 
Summerville, MA) machine with four batches, differing in printing orientation and printing 
location. Vertical and horizontal orientations are applied, and each orientation is combined 
with the printing location, i.e., in the middle and on the edge of the powder bed. Printed 
specimens are scanned and obtained scans are then compared with original CAD model in the 
GOM Inspect program. All four specimen batches have deviation maximum on lateral sides, 
where the surface is minimal. Nearly 0.42 mm deviations are present in horizontally printed 
specimens placed in the middle of the powder bed, and these values are maximal recorded 
deviations. Worth mentioning are vertical specimens printed in the middle, which show not 
only lateral deviations but posses 0.07 mm deviations on largest surface, i.e., on 96x8 mm 
one",
publisher = "Serbian Ceramic Society",
journal = "The Tenth Serbian Ceramic Society Conference -Advanced Ceramics and Application",
title = "Deviation measurement of SLS PA material regarding location and  orientation of printing",
pages = "76-76",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5834"
}

Jevtić, I., Mladenović, G., Milošević, M., Milovanović, A., Trajković, I.,& Travica, M.. (2022). Deviation measurement of SLS PA material regarding location and  orientation of printing. in The Tenth Serbian Ceramic Society Conference -Advanced Ceramics and Application
Serbian Ceramic Society., 76-76.
https://hdl.handle.net/21.15107/rcub_machinery_5834

Jevtić I, Mladenović G, Milošević M, Milovanović A, Trajković I, Travica M. Deviation measurement of SLS PA material regarding location and  orientation of printing. in The Tenth Serbian Ceramic Society Conference -Advanced Ceramics and Application. 2022;:76-76.
https://hdl.handle.net/21.15107/rcub_machinery_5834 .

Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanović, Aleksa, Trajković, Isaak, Travica, Milan, "Deviation measurement of SLS PA material regarding location and  orientation of printing" in The Tenth Serbian Ceramic Society Conference -Advanced Ceramics and Application (2022):76-76,
https://hdl.handle.net/21.15107/rcub_machinery_5834 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Milovanović, Aleksa
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Trajković, Isaak
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5838
AB  - During exploitation metallic components are subject to dynamic loading, thus a better understanding of material
behavior in such conditions is mandatory. Loading conditions in such cases include creep and fatigue, with
more failure cases in the fatigue regime. Fatigue tests can be performed in Low- and High-cycle regimes,
depending on chosen control parameters. The High-cycle regime controls the amount of stress, and opposite
to it Low-cycle regime is performed in a strain-control state. The subject of this research is Low-cycle regime
testing, i.e., testing in control of strain amplitude. Regular dynamic machines for this type of test require the
definition of cycle frequency, amplitude level, and specimen geometry to assess the dynamic properties of the
material. The material of interest is an austenitic stainless-steel material 316L, which is a low-carbon version
of 316 steel. Due to high corrosion resistance and possible high-temperature applications, targeted material
can be used in the petrochemical, marine, biomedical industry, etc. High-temperature applications may include
fatigue tests at elevated temperatures, thus fatigue machine must be equipped with a heating chamber. For
fatigue testing, specimen surfaces have to be smooth and clean, to prevent crack initiation from surface
irregularities. Because of the nature of AM process, i.e., surface irregularities are expected, each specimen
must be polished and etched, and afterward treated surfaces must be inspected on an optical and SEM
microscope. Specimens that pass the inspection can be fatigue tested. After testing, results from the machine
must be data processed in order to obtain cyclic stress-strain curves (hysteresis loop), cyclic
hardening/softening curve, and Manson-Coffin representation
PB  - University of Belgrade, faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2022" - Book of Abstracts
T1  - Low-cycle fatigue testing setup for Additively manufactured 316L stainless steel material
EP  - 5
SP  - 5
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5838
ER  - 

@conference{
author = "Jevtić, Ivana and Milovanović, Aleksa and Mladenović, Goran and Milošević, Miloš and Trajković, Isaak",
year = "2022",
abstract = "During exploitation metallic components are subject to dynamic loading, thus a better understanding of material
behavior in such conditions is mandatory. Loading conditions in such cases include creep and fatigue, with
more failure cases in the fatigue regime. Fatigue tests can be performed in Low- and High-cycle regimes,
depending on chosen control parameters. The High-cycle regime controls the amount of stress, and opposite
to it Low-cycle regime is performed in a strain-control state. The subject of this research is Low-cycle regime
testing, i.e., testing in control of strain amplitude. Regular dynamic machines for this type of test require the
definition of cycle frequency, amplitude level, and specimen geometry to assess the dynamic properties of the
material. The material of interest is an austenitic stainless-steel material 316L, which is a low-carbon version
of 316 steel. Due to high corrosion resistance and possible high-temperature applications, targeted material
can be used in the petrochemical, marine, biomedical industry, etc. High-temperature applications may include
fatigue tests at elevated temperatures, thus fatigue machine must be equipped with a heating chamber. For
fatigue testing, specimen surfaces have to be smooth and clean, to prevent crack initiation from surface
irregularities. Because of the nature of AM process, i.e., surface irregularities are expected, each specimen
must be polished and etched, and afterward treated surfaces must be inspected on an optical and SEM
microscope. Specimens that pass the inspection can be fatigue tested. After testing, results from the machine
must be data processed in order to obtain cyclic stress-strain curves (hysteresis loop), cyclic
hardening/softening curve, and Manson-Coffin representation",
publisher = "University of Belgrade, faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2022" - Book of Abstracts",
title = "Low-cycle fatigue testing setup for Additively manufactured 316L stainless steel material",
pages = "5-5",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5838"
}

Jevtić, I., Milovanović, A., Mladenović, G., Milošević, M.,& Trajković, I.. (2022). Low-cycle fatigue testing setup for Additively manufactured 316L stainless steel material. in International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2022" - Book of Abstracts
University of Belgrade, faculty of Mechanical Engineering., 5-5.
https://hdl.handle.net/21.15107/rcub_machinery_5838

Jevtić I, Milovanović A, Mladenović G, Milošević M, Trajković I. Low-cycle fatigue testing setup for Additively manufactured 316L stainless steel material. in International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2022" - Book of Abstracts. 2022;:5-5.
https://hdl.handle.net/21.15107/rcub_machinery_5838 .

Jevtić, Ivana, Milovanović, Aleksa, Mladenović, Goran, Milošević, Miloš, Trajković, Isaak, "Low-cycle fatigue testing setup for Additively manufactured 316L stainless steel material" in International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2022" - Book of Abstracts (2022):5-5,
https://hdl.handle.net/21.15107/rcub_machinery_5838 .

TY  - CONF
AU  - Kostić, Aleksandra
AU  - Jevtić, Ivana
AU  - Miličić, Branko
AU  - Džodan, Uroš
AU  - Šljivak, Marija
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4240
AB  - Wheels for rail vehicles are made according to precisely defined geometry and dimensions. The wear of the 
wheel profile in operation is not uniform, so the initial profile changes. It is a consequence of the inevitable 
slippage, which is influenced by a large number of factors. Certain changes in the profile can be important for 
the safety of movement and riding quality, so the shape of the profile in operation must be regularly checked 
through characteristic dimensions measurements: the flange thickness, the flange width and its slope. 
Changing the characteristic measures can lead to: thinning of the flange over the allowed limit, which can lead 
to its cracking, increase in the height of the flange, which can cause problems with derailment at crossings and 
switches, reducing the slope of the flange, which can lead to derailment on the switch tongue. The paper 
presents the verification of the dimensions and shape of the pattern for control wheel profile for the type of 
tread shape S1002, which are used to control the wheel profile after reprofiling. The dimensions of the S1002 
wheel profile are given in EN 13715 on the basis of which the control patterns are made. After making the 
pattern or the control accessories, its dimensions were checked by scanning on a 3D scanner Atos core 200. 
The resolution of the scanner is 0.08 mm, and its working surface is 200 x 150 mm. The 3D model was obtained 
by scanning, from which the coordinates of the scanned profile were obtained with the help of the GOM Inspect 
software package. Based on these coordinates, a comparison was made and a deviation from the nominal 
profile.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - The book of Abstract : International Conference of Experimental and Numerical Investigations and New Technologies CNNTECH 2022
T1  - Scanning of the characteristic dimensions of the control pattern for checking the railway wheel tread profile using a 3D scanner Atos core 200
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4240
ER  - 

@conference{
author = "Kostić, Aleksandra and Jevtić, Ivana and Miličić, Branko and Džodan, Uroš and Šljivak, Marija",
year = "2022",
abstract = "Wheels for rail vehicles are made according to precisely defined geometry and dimensions. The wear of the 
wheel profile in operation is not uniform, so the initial profile changes. It is a consequence of the inevitable 
slippage, which is influenced by a large number of factors. Certain changes in the profile can be important for 
the safety of movement and riding quality, so the shape of the profile in operation must be regularly checked 
through characteristic dimensions measurements: the flange thickness, the flange width and its slope. 
Changing the characteristic measures can lead to: thinning of the flange over the allowed limit, which can lead 
to its cracking, increase in the height of the flange, which can cause problems with derailment at crossings and 
switches, reducing the slope of the flange, which can lead to derailment on the switch tongue. The paper 
presents the verification of the dimensions and shape of the pattern for control wheel profile for the type of 
tread shape S1002, which are used to control the wheel profile after reprofiling. The dimensions of the S1002 
wheel profile are given in EN 13715 on the basis of which the control patterns are made. After making the 
pattern or the control accessories, its dimensions were checked by scanning on a 3D scanner Atos core 200. 
The resolution of the scanner is 0.08 mm, and its working surface is 200 x 150 mm. The 3D model was obtained 
by scanning, from which the coordinates of the scanned profile were obtained with the help of the GOM Inspect 
software package. Based on these coordinates, a comparison was made and a deviation from the nominal 
profile.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "The book of Abstract : International Conference of Experimental and Numerical Investigations and New Technologies CNNTECH 2022",
title = "Scanning of the characteristic dimensions of the control pattern for checking the railway wheel tread profile using a 3D scanner Atos core 200",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4240"
}

Kostić, A., Jevtić, I., Miličić, B., Džodan, U.,& Šljivak, M.. (2022). Scanning of the characteristic dimensions of the control pattern for checking the railway wheel tread profile using a 3D scanner Atos core 200. in The book of Abstract : International Conference of Experimental and Numerical Investigations and New Technologies CNNTECH 2022
Belgrade : Innovation Center of Faculty of Mechanical Engineering..
https://hdl.handle.net/21.15107/rcub_machinery_4240

Kostić A, Jevtić I, Miličić B, Džodan U, Šljivak M. Scanning of the characteristic dimensions of the control pattern for checking the railway wheel tread profile using a 3D scanner Atos core 200. in The book of Abstract : International Conference of Experimental and Numerical Investigations and New Technologies CNNTECH 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_4240 .

Kostić, Aleksandra, Jevtić, Ivana, Miličić, Branko, Džodan, Uroš, Šljivak, Marija, "Scanning of the characteristic dimensions of the control pattern for checking the railway wheel tread profile using a 3D scanner Atos core 200" in The book of Abstract : International Conference of Experimental and Numerical Investigations and New Technologies CNNTECH 2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_4240 .

TY  - JOUR
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
AU  - Milovanović, Aleksa
AU  - Trajković, Isaak
AU  - Travica, Milan
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5603
AB  - Dimensional accuracy estimation of additively manufactured parts obtained via Selective Laser Sintering (SLS) is examined. As benchmark models, tensile specimens according to ISO 527-2 standard and bending specimens according to ISO 178 are selected. For all additively manufactured specimens, dimensions are measured and compared with the original CAD models. Tensile specimens are 170x20x4 mm in bulk, and the specimens intended for 3-point bend tests are 96x8x4 mm in bulk. Both specimen configurations are additively manufactured in two different printing orientations, i.e. horizontal and vertical. All specimens are produced on the Fuse 1 device (FormLabs, Summerville, MA), using Polyamide 12 (PA 12) material. After fabrication and postprocessing, all specimens are scanned on Atos Core 200 3D scanner and afterward compared with the original CAD models via the GOM Inspect programme (GOM Metrology GmbH, Braunschweig, Germany).
T2  - Structural integrity and life
T1  - Dimensional accuracy of parts obtained by SLS technology
EP  - 292
IS  - 3
SP  - 288
VL  - 22
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5603
ER  - 

@article{
author = "Jevtić, Ivana and Mladenović, Goran and Milošević, Miloš and Milovanović, Aleksa and Trajković, Isaak and Travica, Milan",
year = "2022",
abstract = "Dimensional accuracy estimation of additively manufactured parts obtained via Selective Laser Sintering (SLS) is examined. As benchmark models, tensile specimens according to ISO 527-2 standard and bending specimens according to ISO 178 are selected. For all additively manufactured specimens, dimensions are measured and compared with the original CAD models. Tensile specimens are 170x20x4 mm in bulk, and the specimens intended for 3-point bend tests are 96x8x4 mm in bulk. Both specimen configurations are additively manufactured in two different printing orientations, i.e. horizontal and vertical. All specimens are produced on the Fuse 1 device (FormLabs, Summerville, MA), using Polyamide 12 (PA 12) material. After fabrication and postprocessing, all specimens are scanned on Atos Core 200 3D scanner and afterward compared with the original CAD models via the GOM Inspect programme (GOM Metrology GmbH, Braunschweig, Germany).",
journal = "Structural integrity and life",
title = "Dimensional accuracy of parts obtained by SLS technology",
pages = "292-288",
number = "3",
volume = "22",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5603"
}

Jevtić, I., Mladenović, G., Milošević, M., Milovanović, A., Trajković, I.,& Travica, M.. (2022). Dimensional accuracy of parts obtained by SLS technology. in Structural integrity and life, 22(3), 288-292.
https://hdl.handle.net/21.15107/rcub_machinery_5603

Jevtić I, Mladenović G, Milošević M, Milovanović A, Trajković I, Travica M. Dimensional accuracy of parts obtained by SLS technology. in Structural integrity and life. 2022;22(3):288-292.
https://hdl.handle.net/21.15107/rcub_machinery_5603 .

Jevtić, Ivana, Mladenović, Goran, Milošević, Miloš, Milovanović, Aleksa, Trajković, Isaak, Travica, Milan, "Dimensional accuracy of parts obtained by SLS technology" in Structural integrity and life, 22, no. 3 (2022):288-292,
https://hdl.handle.net/21.15107/rcub_machinery_5603 .

TY  - CONF
AU  - Trajković, Isaak
AU  - Milovanović, Aleksa
AU  - Jevtić, Ivana
AU  - Travica, Milan
AU  - Marsavina, Liviu
AU  - Međo, Bojan
AU  - Náhlík, Luboš
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7366
AB  - In order to characterize the fracture toughness of single edge notched tension (SENT) specimens, this paper describes the experimental determination of fracture mechanics parameters such as crack mouth opening displacement (CMOD) and crack type opening displacement (CTOD) on SENT specimen samples. Additive production techniques were used to make these specimens. This is an FDM (Fused Deposition Modeling) technique and the material used is polylactide amide (PLA, German RepRap Premium Filament). The experiment was performed on two models of test specimens that differed in geometry. The specimens differed in the length of the notche and crack, while the cross-sectional area of the specimens was equal. The experiment was performed at room temperature and relative humidity of 40%, a few days after production. Universal machine for testing the mechanical properties of materials (Shimadzu AGS-X 100kN) in the control of displacement at a speed of 0.5mm / min was used. Using the Aramis 2M system, digital image correlation was used to obtain CMOD and CTOD (δ-5) values according to a standard procedure using a point-point distance command that measures the distance between points with an accuracy of one thousandth of a millimeter. The repeatability of the results indicates the same trend in the fracture of SENT specimens made by this technique of additive production and from this material as the results with low values of standard deviation.
C3  - International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor)
T1  - Monitoring of fracture mechanics parameters on single edge notched tension specimens made of PLA material
SP  - 18
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7366
ER  - 

@conference{
author = "Trajković, Isaak and Milovanović, Aleksa and Jevtić, Ivana and Travica, Milan and Marsavina, Liviu and Međo, Bojan and Náhlík, Luboš",
year = "2021",
abstract = "In order to characterize the fracture toughness of single edge notched tension (SENT) specimens, this paper describes the experimental determination of fracture mechanics parameters such as crack mouth opening displacement (CMOD) and crack type opening displacement (CTOD) on SENT specimen samples. Additive production techniques were used to make these specimens. This is an FDM (Fused Deposition Modeling) technique and the material used is polylactide amide (PLA, German RepRap Premium Filament). The experiment was performed on two models of test specimens that differed in geometry. The specimens differed in the length of the notche and crack, while the cross-sectional area of the specimens was equal. The experiment was performed at room temperature and relative humidity of 40%, a few days after production. Universal machine for testing the mechanical properties of materials (Shimadzu AGS-X 100kN) in the control of displacement at a speed of 0.5mm / min was used. Using the Aramis 2M system, digital image correlation was used to obtain CMOD and CTOD (δ-5) values according to a standard procedure using a point-point distance command that measures the distance between points with an accuracy of one thousandth of a millimeter. The repeatability of the results indicates the same trend in the fracture of SENT specimens made by this technique of additive production and from this material as the results with low values of standard deviation.",
journal = "International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor)",
title = "Monitoring of fracture mechanics parameters on single edge notched tension specimens made of PLA material",
pages = "18",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7366"
}

Trajković, I., Milovanović, A., Jevtić, I., Travica, M., Marsavina, L., Međo, B.,& Náhlík, L.. (2021). Monitoring of fracture mechanics parameters on single edge notched tension specimens made of PLA material. in International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor), 18.
https://hdl.handle.net/21.15107/rcub_machinery_7366

Trajković I, Milovanović A, Jevtić I, Travica M, Marsavina L, Međo B, Náhlík L. Monitoring of fracture mechanics parameters on single edge notched tension specimens made of PLA material. in International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor). 2021;:18.
https://hdl.handle.net/21.15107/rcub_machinery_7366 .

Trajković, Isaak, Milovanović, Aleksa, Jevtić, Ivana, Travica, Milan, Marsavina, Liviu, Međo, Bojan, Náhlík, Luboš, "Monitoring of fracture mechanics parameters on single edge notched tension specimens made of PLA material" in International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor) (2021):18,
https://hdl.handle.net/21.15107/rcub_machinery_7366 .

TY  - CONF
AU  - Mladenović, Goran
AU  - Tanović, Ljubodrag
AU  - Puzović, Radovan
AU  - Pjević, Miloš
AU  - Popović, Mihajlo
AU  - Jevtić, Ivana
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5402
AB  - This paper has presented the development of a sequel of conducted research in the field of free form surface machining at the Faculty of Mechanical Engineering in Belgrade. In order to machine as much as a possible material, it was developed machining strategy for rough machining with end mill cutter with a big diameter as the part of free form surface machining. Rough machining according to the developed strategy allows obtaining an approximate shape of the free form surface in the shortest possible machining time. After rough machining, one part isn’t present big deep of cut for finish machining with ball end mill cutter which is also the final step in machining. Using this strategy is possible to reduce the cost of production and according to that cost of the final product. The developed strategy was implemented in the CAM application and using it NC code was generated. Experimental verification of generated NC code was performed on horizontal working centre and measurement of a machined part was performed after machining too. With analysis of measured dimensions, it was verified usage of developed strategy which was implemented in CAM application.
PB  - University of Belgrade, faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2021" - Book of Abstracts
T1  - Rough milling with end mill cutter in apllication for free form surfaces machining
EP  - 54
SP  - 54
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5402
ER  - 

@conference{
author = "Mladenović, Goran and Tanović, Ljubodrag and Puzović, Radovan and Pjević, Miloš and Popović, Mihajlo and Jevtić, Ivana",
year = "2021",
abstract = "This paper has presented the development of a sequel of conducted research in the field of free form surface machining at the Faculty of Mechanical Engineering in Belgrade. In order to machine as much as a possible material, it was developed machining strategy for rough machining with end mill cutter with a big diameter as the part of free form surface machining. Rough machining according to the developed strategy allows obtaining an approximate shape of the free form surface in the shortest possible machining time. After rough machining, one part isn’t present big deep of cut for finish machining with ball end mill cutter which is also the final step in machining. Using this strategy is possible to reduce the cost of production and according to that cost of the final product. The developed strategy was implemented in the CAM application and using it NC code was generated. Experimental verification of generated NC code was performed on horizontal working centre and measurement of a machined part was performed after machining too. With analysis of measured dimensions, it was verified usage of developed strategy which was implemented in CAM application.",
publisher = "University of Belgrade, faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2021" - Book of Abstracts",
title = "Rough milling with end mill cutter in apllication for free form surfaces machining",
pages = "54-54",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5402"
}

Mladenović, G., Tanović, L., Puzović, R., Pjević, M., Popović, M.,& Jevtić, I.. (2021). Rough milling with end mill cutter in apllication for free form surfaces machining. in International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2021" - Book of Abstracts
University of Belgrade, faculty of Mechanical Engineering., 54-54.
https://hdl.handle.net/21.15107/rcub_machinery_5402

Mladenović G, Tanović L, Puzović R, Pjević M, Popović M, Jevtić I. Rough milling with end mill cutter in apllication for free form surfaces machining. in International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2021" - Book of Abstracts. 2021;:54-54.
https://hdl.handle.net/21.15107/rcub_machinery_5402 .

Mladenović, Goran, Tanović, Ljubodrag, Puzović, Radovan, Pjević, Miloš, Popović, Mihajlo, Jevtić, Ivana, "Rough milling with end mill cutter in apllication for free form surfaces machining" in International Conference of Experimental and Numerical Investigations and New Technologies "CNN TECH 2021" - Book of Abstracts (2021):54-54,
https://hdl.handle.net/21.15107/rcub_machinery_5402 .