TY  - CONF
AU  - Cvetić, Žarko
AU  - Majstotović, Marija
AU  - Bojović, Božica
AU  - Trajković, Isaak
AU  - Golubović, Zorana
AU  - Mladenović, Goran
AU  - Milošević, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7865
AB  - The Materials with a negative Poisson’s ratio are recognized as Auxetics materials. Compared to conventional materials it has the counter-intuitive property that during the compression the structure tends to contract and stretch when it expands. These particular attributes identified in the literature have encouraged further research on this topic. The flexible photopolymer resin is used for the test specimens, which have a cylindrical-shell based Auxetics structure. The test specimens are printed on an LCD printer with resin which gives structure
ductile properties during the compression test. Using an industry camera the dimensional changes are captured for further research. With Digital Image Correlation method experimental results show different scenarios in varying the dimensions of the structure. Analyzed results give a foundation for future research, giving it a special focus on improving the quality of future tests and giving a perspective of potential applications and manufacturing variations of Auxetics structures.
C3  - „International Conference of Experimental and Numerical Investigations and New Technologies“  CNN TECH, Book of ApstractsBelgrade, June 24 - 27, 2024
T1  - INTEGRATION OF ADDITIVE TECHNOLOGY AND MECHANICAL TESTING FOR THE ANALYSIS OF AUXETIC STRUCTURE CHARACTERISTICS
SP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7865
ER  - 

@conference{
author = "Cvetić, Žarko and Majstotović, Marija and Bojović, Božica and Trajković, Isaak and Golubović, Zorana and Mladenović, Goran and Milošević, Miloš",
year = "2024",
abstract = "The Materials with a negative Poisson’s ratio are recognized as Auxetics materials. Compared to conventional materials it has the counter-intuitive property that during the compression the structure tends to contract and stretch when it expands. These particular attributes identified in the literature have encouraged further research on this topic. The flexible photopolymer resin is used for the test specimens, which have a cylindrical-shell based Auxetics structure. The test specimens are printed on an LCD printer with resin which gives structure
ductile properties during the compression test. Using an industry camera the dimensional changes are captured for further research. With Digital Image Correlation method experimental results show different scenarios in varying the dimensions of the structure. Analyzed results give a foundation for future research, giving it a special focus on improving the quality of future tests and giving a perspective of potential applications and manufacturing variations of Auxetics structures.",
journal = "„International Conference of Experimental and Numerical Investigations and New Technologies“  CNN TECH, Book of ApstractsBelgrade, June 24 - 27, 2024",
title = "INTEGRATION OF ADDITIVE TECHNOLOGY AND MECHANICAL TESTING FOR THE ANALYSIS OF AUXETIC STRUCTURE CHARACTERISTICS",
pages = "44",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7865"
}

Cvetić, Ž., Majstotović, M., Bojović, B., Trajković, I., Golubović, Z., Mladenović, G.,& Milošević, M.. (2024). INTEGRATION OF ADDITIVE TECHNOLOGY AND MECHANICAL TESTING FOR THE ANALYSIS OF AUXETIC STRUCTURE CHARACTERISTICS. in „International Conference of Experimental and Numerical Investigations and New Technologies“  CNN TECH, Book of ApstractsBelgrade, June 24 - 27, 2024, 44.
https://hdl.handle.net/21.15107/rcub_machinery_7865

Cvetić Ž, Majstotović M, Bojović B, Trajković I, Golubović Z, Mladenović G, Milošević M. INTEGRATION OF ADDITIVE TECHNOLOGY AND MECHANICAL TESTING FOR THE ANALYSIS OF AUXETIC STRUCTURE CHARACTERISTICS. in „International Conference of Experimental and Numerical Investigations and New Technologies“  CNN TECH, Book of ApstractsBelgrade, June 24 - 27, 2024. 2024;:44.
https://hdl.handle.net/21.15107/rcub_machinery_7865 .

Cvetić, Žarko, Majstotović, Marija, Bojović, Božica, Trajković, Isaak, Golubović, Zorana, Mladenović, Goran, Milošević, Miloš, "INTEGRATION OF ADDITIVE TECHNOLOGY AND MECHANICAL TESTING FOR THE ANALYSIS OF AUXETIC STRUCTURE CHARACTERISTICS" in „International Conference of Experimental and Numerical Investigations and New Technologies“  CNN TECH, Book of ApstractsBelgrade, June 24 - 27, 2024 (2024):44,
https://hdl.handle.net/21.15107/rcub_machinery_7865 .

TY  - CONF
AU  - Golubović, Zorana
AU  - Bojović, Božica
AU  - Petrov, Ljubiša
AU  - Sedmak, Aleksandar
AU  - Milovanović, A.
AU  - Mišković, Žarko
AU  - Milošević, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7869
AB  - Additive Manufacturing (AM) has shown rapid development during the last decades. More commonly known as 3D printing, this technology offers significant benefits for the fabrication of physical models with complex geometries. This technology started as a valuable tool for prototyping purposes but is considered for general manufacturing due to the production cycle shortening and less (if none) material waste. Out of seven possible AM technologies, this research covers three of them, namely: Fused Deposition Modeling (FDM), Stereolithography (SLA), and Digital Light Processing (DLP). Although, ABS thermoplastic material is a thoroughly researched AM material, a new resin material also called ABS is an interesting object for research. Hence, the aim of this paper is to acquire the tensile properties of this material and to compare them to the “original” ABS thermoplastic material.
PB  - ELSEVIER B.V.
C3  - Procedia Structural Integrity
T1  - Comparative analysis of ABS materials mechanical properties
EP  - 159
SP  - 153
VL  - 56
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7869
ER  - 

@conference{
author = "Golubović, Zorana and Bojović, Božica and Petrov, Ljubiša and Sedmak, Aleksandar and Milovanović, A. and Mišković, Žarko and Milošević, Miloš",
year = "2024",
abstract = "Additive Manufacturing (AM) has shown rapid development during the last decades. More commonly known as 3D printing, this technology offers significant benefits for the fabrication of physical models with complex geometries. This technology started as a valuable tool for prototyping purposes but is considered for general manufacturing due to the production cycle shortening and less (if none) material waste. Out of seven possible AM technologies, this research covers three of them, namely: Fused Deposition Modeling (FDM), Stereolithography (SLA), and Digital Light Processing (DLP). Although, ABS thermoplastic material is a thoroughly researched AM material, a new resin material also called ABS is an interesting object for research. Hence, the aim of this paper is to acquire the tensile properties of this material and to compare them to the “original” ABS thermoplastic material.",
publisher = "ELSEVIER B.V.",
journal = "Procedia Structural Integrity",
title = "Comparative analysis of ABS materials mechanical properties",
pages = "159-153",
volume = "56",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7869"
}

Golubović, Z., Bojović, B., Petrov, L., Sedmak, A., Milovanović, A., Mišković, Ž.,& Milošević, M.. (2024). Comparative analysis of ABS materials mechanical properties. in Procedia Structural Integrity
ELSEVIER B.V.., 56, 153-159.
https://hdl.handle.net/21.15107/rcub_machinery_7869

Golubović Z, Bojović B, Petrov L, Sedmak A, Milovanović A, Mišković Ž, Milošević M. Comparative analysis of ABS materials mechanical properties. in Procedia Structural Integrity. 2024;56:153-159.
https://hdl.handle.net/21.15107/rcub_machinery_7869 .

Golubović, Zorana, Bojović, Božica, Petrov, Ljubiša, Sedmak, Aleksandar, Milovanović, A., Mišković, Žarko, Milošević, Miloš, "Comparative analysis of ABS materials mechanical properties" in Procedia Structural Integrity, 56 (2024):153-159,
https://hdl.handle.net/21.15107/rcub_machinery_7869 .

TY  - CONF
AU  - Jevtić, Ivana
AU  - Mladenović, Goran
AU  - Milovanović, Aleksa
AU  - Milošević, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7856
AB  - In this study, the research focuses on tensile PA12 specimens with CAD model dimensions selected according to the ISO 527-2 standard, with bulk dimensions of 170x20x4 mm. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs 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 two batches of specimens, each differing in printing orientation (i.e., horizontal and vertical). After printing, the specimens are tested using a Shimadzu AGS-X universal testing machine with a capacity of 100 kN to evaluate the mechanical characteristics of the materials. The findings reveal that horizontally printed specimens have a modulus of elasticity about 9.3% higher than the manufacturer's stated value, while vertically printed specimens show an increase of approximately 11.4%. This enhancement is likely due to the thermal and cooling cycles during printing. The difference in modulus of elasticity between the orientations is around 2%, indicating a minor impact on mechanical properties.
PB  - University of Belgrade, Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2024
T1  - MECHANICAL PROPERTIES OF PA12 SPECIMENS PRODUCED USING SLS TECHNOLOGY
EP  - 50
SP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7856
ER  - 

@conference{
author = "Jevtić, Ivana and Mladenović, Goran and Milovanović, Aleksa and Milošević, Miloš",
year = "2024",
abstract = "In this study, the research focuses on tensile PA12 specimens with CAD model dimensions selected according to the ISO 527-2 standard, with bulk dimensions of 170x20x4 mm. The study utilizes a Fuse 1 (FormLabs, Summerville, MA) 3D printer that employs 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 two batches of specimens, each differing in printing orientation (i.e., horizontal and vertical). After printing, the specimens are tested using a Shimadzu AGS-X universal testing machine with a capacity of 100 kN to evaluate the mechanical characteristics of the materials. The findings reveal that horizontally printed specimens have a modulus of elasticity about 9.3% higher than the manufacturer's stated value, while vertically printed specimens show an increase of approximately 11.4%. This enhancement is likely due to the thermal and cooling cycles during printing. The difference in modulus of elasticity between the orientations is around 2%, indicating a minor impact on mechanical properties.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2024",
title = "MECHANICAL PROPERTIES OF PA12 SPECIMENS PRODUCED USING SLS TECHNOLOGY",
pages = "50-50",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7856"
}

Jevtić, I., Mladenović, G., Milovanović, A.,& Milošević, M.. (2024). MECHANICAL PROPERTIES OF PA12 SPECIMENS PRODUCED USING SLS TECHNOLOGY. in International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2024
University of Belgrade, Faculty of Mechanical Engineering., 50-50.
https://hdl.handle.net/21.15107/rcub_machinery_7856

Jevtić I, Mladenović G, Milovanović A, Milošević M. MECHANICAL PROPERTIES OF PA12 SPECIMENS PRODUCED USING SLS TECHNOLOGY. in International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2024. 2024;:50-50.
https://hdl.handle.net/21.15107/rcub_machinery_7856 .

Jevtić, Ivana, Mladenović, Goran, Milovanović, Aleksa, Milošević, Miloš, "MECHANICAL PROPERTIES OF PA12 SPECIMENS PRODUCED USING SLS TECHNOLOGY" in International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2024 (2024):50-50,
https://hdl.handle.net/21.15107/rcub_machinery_7856 .

TY  - JOUR
AU  - Čolić, Katarina
AU  - Sedmak, Simon
AU  - Sedmak, Aleksandar
AU  - Milovanović, Aleksa
AU  - Milošević, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7801
AB  - Research presented here involves numerical analysis of stresses in partial hip implant subjected to static loads, for two cases of patient weight. The numerical analysis requires the development of 3D models that would accurately repre-sent real partial hip implant geometry, hence a reverse engineering approach via 3D scanning is also included. This combined approach provides reliable insight into the behaviour of partial hip implants under static load, while also exposing certain issues related to the application of this specific implant geometry at higher weight levels.
T2  - STRUCTURAL INTEGRITY AND LIFE
T1  - NUMERICAL ANALYSIS OF STATIC STRESSES IN PARTIAL HIP IMPLANT
EP  - 20
IS  - 1
SP  - 17
VL  - 24
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7801
ER  - 

@article{
author = "Čolić, Katarina and Sedmak, Simon and Sedmak, Aleksandar and Milovanović, Aleksa and Milošević, Miloš",
year = "2024",
abstract = "Research presented here involves numerical analysis of stresses in partial hip implant subjected to static loads, for two cases of patient weight. The numerical analysis requires the development of 3D models that would accurately repre-sent real partial hip implant geometry, hence a reverse engineering approach via 3D scanning is also included. This combined approach provides reliable insight into the behaviour of partial hip implants under static load, while also exposing certain issues related to the application of this specific implant geometry at higher weight levels.",
journal = "STRUCTURAL INTEGRITY AND LIFE",
title = "NUMERICAL ANALYSIS OF STATIC STRESSES IN PARTIAL HIP IMPLANT",
pages = "20-17",
number = "1",
volume = "24",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7801"
}

Čolić, K., Sedmak, S., Sedmak, A., Milovanović, A.,& Milošević, M.. (2024). NUMERICAL ANALYSIS OF STATIC STRESSES IN PARTIAL HIP IMPLANT. in STRUCTURAL INTEGRITY AND LIFE, 24(1), 17-20.
https://hdl.handle.net/21.15107/rcub_machinery_7801

Čolić K, Sedmak S, Sedmak A, Milovanović A, Milošević M. NUMERICAL ANALYSIS OF STATIC STRESSES IN PARTIAL HIP IMPLANT. in STRUCTURAL INTEGRITY AND LIFE. 2024;24(1):17-20.
https://hdl.handle.net/21.15107/rcub_machinery_7801 .

Čolić, Katarina, Sedmak, Simon, Sedmak, Aleksandar, Milovanović, Aleksa, Milošević, Miloš, "NUMERICAL ANALYSIS OF STATIC STRESSES IN PARTIAL HIP IMPLANT" in STRUCTURAL INTEGRITY AND LIFE, 24, no. 1 (2024):17-20,
https://hdl.handle.net/21.15107/rcub_machinery_7801 .

TY  - JOUR
AU  - Mitrović, Nenad
AU  - Golubović, Zorana
AU  - Mitrović, Aleksandra
AU  - Travica, Milan
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Petrović, Aleksandar
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7781
AB  - The three-point bending test is a valuable method for evaluating the mechanical properties of 3D-printed biomaterials, which can be used in various applications. The use of 3D printing in specimen preparation enables precise control over material composition and microstructure, facilitating the investigation of different printing parameters and advanced materials. The traditional approach to analyzing the mechanical properties of a material using a three-point bending test has the disadvantage that it provides only global information about the material’s behavior. This means that it does not provide detailed insight into the local strain distribution within the material. However, the 2D Digital Image Correlation (DIC) method offers additional insight, especially in terms of strain localization. DIC is an optical technique that measures full-field displacements and strains on the surface of a sample. PLA and enhanced PLA-X material were utilized to create three-point bending samples. The aim of this paper was to analyze and compare the influence of aging on the mechanical properties of PLA and enhanced PLA-X materials using three-point bending coupled with the DIC method. The results showed statistically significant differences between the PLA and PLA-X, for both the new and aged materials. The aged PLA samples had the highest average value of maximal force around 68 N, which was an increase of 8.8% compared to the new PLA samples. On the other hand, the aged PLA-X material had an increase of 7.7% in the average maximal force compared to the new PLA-X samples. When comparing the two materials, the PLA samples had higher maximal force values, 6.2% for the new samples, and 7.3% for the aged samples. The DIC results showed that both the new PLA and PLA-X samples endured higher strain values at Points 1 and 2 than the aged ones, except for the aged PLA-X sample at Point 2, where the new sample had higher strain values. However, for the first 5 min of the experiment, both materials exhibited identical behavior, after which point significant differences started to occur for both materials, as well as at Points 1 and 2. A more profound comprehension of the biomechanical characteristics of both PLA and PLA-X material is essential to enhance the knowledge for potential biomedical applications. The DIC method was found to be a powerful tool for analyzing the deformation and failure behavior of samples and for complementing the traditional approach to material testing.
T2  - Micromachines
T1  - Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials
IS  - 3
SP  - 395
VL  - 15
DO  - 10.3390/mi15030395
ER  - 

@article{
author = "Mitrović, Nenad and Golubović, Zorana and Mitrović, Aleksandra and Travica, Milan and Trajković, Isaak and Milošević, Miloš and Petrović, Aleksandar",
year = "2024",
abstract = "The three-point bending test is a valuable method for evaluating the mechanical properties of 3D-printed biomaterials, which can be used in various applications. The use of 3D printing in specimen preparation enables precise control over material composition and microstructure, facilitating the investigation of different printing parameters and advanced materials. The traditional approach to analyzing the mechanical properties of a material using a three-point bending test has the disadvantage that it provides only global information about the material’s behavior. This means that it does not provide detailed insight into the local strain distribution within the material. However, the 2D Digital Image Correlation (DIC) method offers additional insight, especially in terms of strain localization. DIC is an optical technique that measures full-field displacements and strains on the surface of a sample. PLA and enhanced PLA-X material were utilized to create three-point bending samples. The aim of this paper was to analyze and compare the influence of aging on the mechanical properties of PLA and enhanced PLA-X materials using three-point bending coupled with the DIC method. The results showed statistically significant differences between the PLA and PLA-X, for both the new and aged materials. The aged PLA samples had the highest average value of maximal force around 68 N, which was an increase of 8.8% compared to the new PLA samples. On the other hand, the aged PLA-X material had an increase of 7.7% in the average maximal force compared to the new PLA-X samples. When comparing the two materials, the PLA samples had higher maximal force values, 6.2% for the new samples, and 7.3% for the aged samples. The DIC results showed that both the new PLA and PLA-X samples endured higher strain values at Points 1 and 2 than the aged ones, except for the aged PLA-X sample at Point 2, where the new sample had higher strain values. However, for the first 5 min of the experiment, both materials exhibited identical behavior, after which point significant differences started to occur for both materials, as well as at Points 1 and 2. A more profound comprehension of the biomechanical characteristics of both PLA and PLA-X material is essential to enhance the knowledge for potential biomedical applications. The DIC method was found to be a powerful tool for analyzing the deformation and failure behavior of samples and for complementing the traditional approach to material testing.",
journal = "Micromachines",
title = "Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials",
number = "3",
pages = "395",
volume = "15",
doi = "10.3390/mi15030395"
}

Mitrović, N., Golubović, Z., Mitrović, A., Travica, M., Trajković, I., Milošević, M.,& Petrović, A.. (2024). Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials. in Micromachines, 15(3), 395.
https://doi.org/10.3390/mi15030395

Mitrović N, Golubović Z, Mitrović A, Travica M, Trajković I, Milošević M, Petrović A. Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials. in Micromachines. 2024;15(3):395.
doi:10.3390/mi15030395 .

Mitrović, Nenad, Golubović, Zorana, Mitrović, Aleksandra, Travica, Milan, Trajković, Isaak, Milošević, Miloš, Petrović, Aleksandar, "Influence of Aging on the Flexural Strength of PLA and PLA-X 3D-Printed Materials" in Micromachines, 15, no. 3 (2024):395,
https://doi.org/10.3390/mi15030395 . .

TY  - CHAP
AU  - Golubović, Zorana
AU  - Travica, Milan
AU  - Mitrović, Nenad
AU  - Trajković, Isaak
AU  - Milošević, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7782
AB  - Additive manufacturing and 3D printing technologies are rapidly evolving and influencing changes in design, prototyping, engineering and manufacturing processes in various industries, including aerospace. In order to use 3D printing processes to produce parts with adequate and satisfactory mechanical properties for aircraft that are constantly exposed to extreme temperatures and environmental conditions, the temperature variations that occur must be taken into account. In this study, small-scale specimens of the thermoplastic polymer material polylactic acid (PLA) were printed using an FDM printer while a thermal imaging camera was used to record the temperature changes during the printing process. The aim was to determine the temperature changes during each step of the printing process of small specimens and to create a future model for testing the temperature distribution.
PB  - Springer
T2  - New Trends in Engineering Research
T1  - Development of a Method for Testing Temperature Distribution During 3D Printing of Specimens with Application in Aerospace Industry
EP  - 95
SP  - 90
VL  - 792
DO  - 10.1007/978-3-031-46432-4_7
ER  - 

@inbook{
author = "Golubović, Zorana and Travica, Milan and Mitrović, Nenad and Trajković, Isaak and Milošević, Miloš",
year = "2024",
abstract = "Additive manufacturing and 3D printing technologies are rapidly evolving and influencing changes in design, prototyping, engineering and manufacturing processes in various industries, including aerospace. In order to use 3D printing processes to produce parts with adequate and satisfactory mechanical properties for aircraft that are constantly exposed to extreme temperatures and environmental conditions, the temperature variations that occur must be taken into account. In this study, small-scale specimens of the thermoplastic polymer material polylactic acid (PLA) were printed using an FDM printer while a thermal imaging camera was used to record the temperature changes during the printing process. The aim was to determine the temperature changes during each step of the printing process of small specimens and to create a future model for testing the temperature distribution.",
publisher = "Springer",
journal = "New Trends in Engineering Research",
booktitle = "Development of a Method for Testing Temperature Distribution During 3D Printing of Specimens with Application in Aerospace Industry",
pages = "95-90",
volume = "792",
doi = "10.1007/978-3-031-46432-4_7"
}

Golubović, Z., Travica, M., Mitrović, N., Trajković, I.,& Milošević, M.. (2024). Development of a Method for Testing Temperature Distribution During 3D Printing of Specimens with Application in Aerospace Industry. in New Trends in Engineering Research
Springer., 792, 90-95.
https://doi.org/10.1007/978-3-031-46432-4_7

Golubović Z, Travica M, Mitrović N, Trajković I, Milošević M. Development of a Method for Testing Temperature Distribution During 3D Printing of Specimens with Application in Aerospace Industry. in New Trends in Engineering Research. 2024;792:90-95.
doi:10.1007/978-3-031-46432-4_7 .

Golubović, Zorana, Travica, Milan, Mitrović, Nenad, Trajković, Isaak, Milošević, Miloš, "Development of a Method for Testing Temperature Distribution During 3D Printing of Specimens with Application in Aerospace Industry" in New Trends in Engineering Research, 792 (2024):90-95,
https://doi.org/10.1007/978-3-031-46432-4_7 . .

TY  - CONF
AU  - Milovanović, Aleksa
AU  - Galațanu, Sergiu-Valentin
AU  - Sedmak, Aleksandar
AU  - Marsavina, Liviu
AU  - Trajković, Isaak
AU  - Popa, Cosmin-Florin
AU  - Milošević, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7780
AB  - Polylactic Acid (PLA) is a widely used material in Fused Deposition Modeling (FDM) technology. Additive Manufacturing (AM) parameters are known to have an influence on the mechanical properties of final components. In FDM, the layer thickness is an influencing parameter providing overall better mechanical properties with lower layer thickness values. In that case, the air gaps created between layers and raster lines have a lower share in total volume. However, layer over-compression might be an issue when choosing the lowest layer thickness options. This research paper investigates the impact properties of PLA material with variations in layer thickness namely, 0.1, 0.2, and 0.3 mm are considered here. Charpy tests were used for the impact property assessment, and all specimens were prepared with 100% infill percentage and honeycomb infill structure. Worth mentioning is that specimens have AMed notches. The impact tests were carried out on 7 specimens per batch (a total of 21 specimens). Therefore, obtained impact results from an instrumented pendulum were observed between groups to have an insight into the beneficial influence of lower layer thickness on impact properties and lower result scatter that finer layer resolution should produce.
PB  - Elsevier
C3  - Procedia Structural Integrity
T1  - Layer thickness influence on impact properties of FDM printed PLA material
EP  - 197
SP  - 190
VL  - 56
DO  - 10.1016/j.prostr.2024.02.055
ER  - 

@conference{
author = "Milovanović, Aleksa and Galațanu, Sergiu-Valentin and Sedmak, Aleksandar and Marsavina, Liviu and Trajković, Isaak and Popa, Cosmin-Florin and Milošević, Miloš",
year = "2024",
abstract = "Polylactic Acid (PLA) is a widely used material in Fused Deposition Modeling (FDM) technology. Additive Manufacturing (AM) parameters are known to have an influence on the mechanical properties of final components. In FDM, the layer thickness is an influencing parameter providing overall better mechanical properties with lower layer thickness values. In that case, the air gaps created between layers and raster lines have a lower share in total volume. However, layer over-compression might be an issue when choosing the lowest layer thickness options. This research paper investigates the impact properties of PLA material with variations in layer thickness namely, 0.1, 0.2, and 0.3 mm are considered here. Charpy tests were used for the impact property assessment, and all specimens were prepared with 100% infill percentage and honeycomb infill structure. Worth mentioning is that specimens have AMed notches. The impact tests were carried out on 7 specimens per batch (a total of 21 specimens). Therefore, obtained impact results from an instrumented pendulum were observed between groups to have an insight into the beneficial influence of lower layer thickness on impact properties and lower result scatter that finer layer resolution should produce.",
publisher = "Elsevier",
journal = "Procedia Structural Integrity",
title = "Layer thickness influence on impact properties of FDM printed PLA material",
pages = "197-190",
volume = "56",
doi = "10.1016/j.prostr.2024.02.055"
}

Milovanović, A., Galațanu, S., Sedmak, A., Marsavina, L., Trajković, I., Popa, C.,& Milošević, M.. (2024). Layer thickness influence on impact properties of FDM printed PLA material. in Procedia Structural Integrity
Elsevier., 56, 190-197.
https://doi.org/10.1016/j.prostr.2024.02.055

Milovanović A, Galațanu S, Sedmak A, Marsavina L, Trajković I, Popa C, Milošević M. Layer thickness influence on impact properties of FDM printed PLA material. in Procedia Structural Integrity. 2024;56:190-197.
doi:10.1016/j.prostr.2024.02.055 .

Milovanović, Aleksa, Galațanu, Sergiu-Valentin, Sedmak, Aleksandar, Marsavina, Liviu, Trajković, Isaak, Popa, Cosmin-Florin, Milošević, Miloš, "Layer thickness influence on impact properties of FDM printed PLA material" in Procedia Structural Integrity, 56 (2024):190-197,
https://doi.org/10.1016/j.prostr.2024.02.055 . .

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  - JOUR
AU  - Milovanović, Aleksa
AU  - Golubović, Zorana
AU  - Kirin, Snežana
AU  - Babinský, Tomáš
AU  - Šulák, Ivo
AU  - Milošević, Miloš
AU  - Sedmak, Aleksandar
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7643
AB  - Polypropylene (PP) is a relatively new material in fused deposition modeling (FDM) technology. The main feature of this material is its ability to significantly elongate under applied load, unlike any other thermoplastic material used in FDM technology. Not much research has been conducted on this FDM material so far, hence, the subject of this paper is the investigation of printing parameters’ influence on PP tensile properties. Targeted parameters are layer height, infill density, and the orientation of raster lines, resulting in four different manufacturing regimes. To have a better insight into the experimental results, the data are analysed using ANOVA statistical method with Tukey HSD post hoc test. Obtained statistical results have proven the printing parameter’s influence on tensile results, emphasizing the influence on elastic modulus. Here, Tukey test results show the maximal number of homogeneous subsets evidencing that all printing parameters have an influence on elastic modulus values.
T2  - Journal of Mechanical Science and Technology
T1  - Manufacturing parameter influence on FDM polypropylene tensile properties
EP  - 7
IS  - 11
SP  - 1
VL  - 37
DO  - 10.1007/s12206-023-2305-5
ER  - 

@article{
author = "Milovanović, Aleksa and Golubović, Zorana and Kirin, Snežana and Babinský, Tomáš and Šulák, Ivo and Milošević, Miloš and Sedmak, Aleksandar",
year = "2023",
abstract = "Polypropylene (PP) is a relatively new material in fused deposition modeling (FDM) technology. The main feature of this material is its ability to significantly elongate under applied load, unlike any other thermoplastic material used in FDM technology. Not much research has been conducted on this FDM material so far, hence, the subject of this paper is the investigation of printing parameters’ influence on PP tensile properties. Targeted parameters are layer height, infill density, and the orientation of raster lines, resulting in four different manufacturing regimes. To have a better insight into the experimental results, the data are analysed using ANOVA statistical method with Tukey HSD post hoc test. Obtained statistical results have proven the printing parameter’s influence on tensile results, emphasizing the influence on elastic modulus. Here, Tukey test results show the maximal number of homogeneous subsets evidencing that all printing parameters have an influence on elastic modulus values.",
journal = "Journal of Mechanical Science and Technology",
title = "Manufacturing parameter influence on FDM polypropylene tensile properties",
pages = "7-1",
number = "11",
volume = "37",
doi = "10.1007/s12206-023-2305-5"
}

Milovanović, A., Golubović, Z., Kirin, S., Babinský, T., Šulák, I., Milošević, M.,& Sedmak, A.. (2023). Manufacturing parameter influence on FDM polypropylene tensile properties. in Journal of Mechanical Science and Technology, 37(11), 1-7.
https://doi.org/10.1007/s12206-023-2305-5

Milovanović A, Golubović Z, Kirin S, Babinský T, Šulák I, Milošević M, Sedmak A. Manufacturing parameter influence on FDM polypropylene tensile properties. in Journal of Mechanical Science and Technology. 2023;37(11):1-7.
doi:10.1007/s12206-023-2305-5 .

Milovanović, Aleksa, Golubović, Zorana, Kirin, Snežana, Babinský, Tomáš, Šulák, Ivo, Milošević, Miloš, Sedmak, Aleksandar, "Manufacturing parameter influence on FDM polypropylene tensile properties" in Journal of Mechanical Science and Technology, 37, no. 11 (2023):1-7,
https://doi.org/10.1007/s12206-023-2305-5 . .

TY  - CONF
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Travica, Milan
AU  - Rakin, Marko
AU  - Mitrović, Nenad
AU  - Sedmak, Aleksandar
AU  - Međo, Bojan
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7273
AB  - This paper presents the influence of geometry on the determination of the stress intensity factor KI on specimens produced by the selective laser sintering technique.The analysis of the determination of the stress intensity factor includes experimental and numerical tests. For this purpose, two geometries of specimens were used. Flat specimens with crack loaded in tension and ring specimens loaded on the inner wall. To understand the influence of geometry, specimens and their identical models were tested with three different ratios between the width of the test specimens and the initial length of the crack. Both types of specimens used for this experiment were made from polyamide PA12 utilizing the SLS (selective laser sintering) additive manufacturing process. The specimens are tested using the Shimadzu AGS-X 100 kN universal equipment for measuring mechanical characteristics of materials. The tensile testing is complemented by the GOM Aramis 2M system, which is utilized for digital image correlation and surface displacement tracking. For the numerical analyzes, we used the finite element method (Abaqus CAE software) to determine the KI factor based on the experimentally obtained results. The values of stress intensity factor for PA12 material show some different results for different types of specimens and effects of the type of production technique. We will present all the results and detail of examination in this paper.
PB  - Serbian Ceramic Society
C3  - Serbian Ceramic Society
T1  - Experimental and numerical determination of the fracture strength of PA12 material on specimens produced by selective laser sintering
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7273
ER  - 

@conference{
author = "Trajković, Isaak and Milošević, Miloš and Travica, Milan and Rakin, Marko and Mitrović, Nenad and Sedmak, Aleksandar and Međo, Bojan",
year = "2023",
abstract = "This paper presents the influence of geometry on the determination of the stress intensity factor KI on specimens produced by the selective laser sintering technique.The analysis of the determination of the stress intensity factor includes experimental and numerical tests. For this purpose, two geometries of specimens were used. Flat specimens with crack loaded in tension and ring specimens loaded on the inner wall. To understand the influence of geometry, specimens and their identical models were tested with three different ratios between the width of the test specimens and the initial length of the crack. Both types of specimens used for this experiment were made from polyamide PA12 utilizing the SLS (selective laser sintering) additive manufacturing process. The specimens are tested using the Shimadzu AGS-X 100 kN universal equipment for measuring mechanical characteristics of materials. The tensile testing is complemented by the GOM Aramis 2M system, which is utilized for digital image correlation and surface displacement tracking. For the numerical analyzes, we used the finite element method (Abaqus CAE software) to determine the KI factor based on the experimentally obtained results. The values of stress intensity factor for PA12 material show some different results for different types of specimens and effects of the type of production technique. We will present all the results and detail of examination in this paper.",
publisher = "Serbian Ceramic Society",
journal = "Serbian Ceramic Society",
title = "Experimental and numerical determination of the fracture strength of PA12 material on specimens produced by selective laser sintering",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7273"
}

Trajković, I., Milošević, M., Travica, M., Rakin, M., Mitrović, N., Sedmak, A.,& Međo, B.. (2023). Experimental and numerical determination of the fracture strength of PA12 material on specimens produced by selective laser sintering. in Serbian Ceramic Society
Serbian Ceramic Society..
https://hdl.handle.net/21.15107/rcub_machinery_7273

Trajković I, Milošević M, Travica M, Rakin M, Mitrović N, Sedmak A, Međo B. Experimental and numerical determination of the fracture strength of PA12 material on specimens produced by selective laser sintering. in Serbian Ceramic Society. 2023;.
https://hdl.handle.net/21.15107/rcub_machinery_7273 .

Trajković, Isaak, Milošević, Miloš, Travica, Milan, Rakin, Marko, Mitrović, Nenad, Sedmak, Aleksandar, Međo, Bojan, "Experimental and numerical determination of the fracture strength of PA12 material on specimens produced by selective laser sintering" in Serbian Ceramic Society (2023),
https://hdl.handle.net/21.15107/rcub_machinery_7273 .

TY  - JOUR
AU  - Trajković, Isaak
AU  - Rakin, Marko
AU  - Milošević, Miloš
AU  - Mitrović, Nenad
AU  - Travica, Milan
AU  - Sedmak, Aleksandar
AU  - Međo, Bojan
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7231
AB  - In order to develop a non-standard method for determining the resistance to fracture and damage of pipeline materials, a new geometry of ring-shaped specimens with sharp notches or cracks has been defined. The need to develop a new method for testing of the specimens cut from the pipes arises due to the difficulties in determination of fracture mechanics parameters on thin-walled pressure pipelines, especially those with a smaller cross-section, by application of the standard procedures/specimens. Previous studies dealing with the topic of pipeline testing by non-standard methods are presented in the introductory part of the paper. In the experimental part of the research, tests on PRNT (Pipe Ring Notched Tension) and SENT (Single Edge Notched Tension) specimens are performed. Samples of these specimens were produced by SLS (Selective Laser Sintering) technique of additive production from PA12 (polyamide PA 2200) material. For the purpose of this study, a tool that is protected at the national level (in Serbia) as intellectual property is used for testing of the ring-shaped PRNT specimens. Tensile testing of both types of specimens is monitored by Aramis GOM 2M system; its operation is based on the method of digital image correlation, DIC. Additionally, finite element analyses are conducted on the PRNT and SENT geometries, enabling the calculation of the fracture mechanics parameter – Stress intensity factor K. It is concluded that the presented procedure based on the PRNT specimen has a good potential for use as a non-standard method for fracture resistance examination of pipeline materials. It can be performed on the specimens cut directly from the pipes (new or from exploitation). The dependence of the fracture resistance on the stress concentrator size is not pronounced, which means that the results depend dominantly on the material properties, rather than on geometry.
PB  - Engineering Fracture Mechanics
T2  - Engineering Fracture Mechanics
T1  - Selective laser sintered Pipe Ring Notched Tension specimens for examination of fracture properties of pipeline materials
IS  - 109573
VL  - 292
DO  - 10.1016/j.engfracmech.2023.109573
ER  - 

@article{
author = "Trajković, Isaak and Rakin, Marko and Milošević, Miloš and Mitrović, Nenad and Travica, Milan and Sedmak, Aleksandar and Međo, Bojan",
year = "2023",
abstract = "In order to develop a non-standard method for determining the resistance to fracture and damage of pipeline materials, a new geometry of ring-shaped specimens with sharp notches or cracks has been defined. The need to develop a new method for testing of the specimens cut from the pipes arises due to the difficulties in determination of fracture mechanics parameters on thin-walled pressure pipelines, especially those with a smaller cross-section, by application of the standard procedures/specimens. Previous studies dealing with the topic of pipeline testing by non-standard methods are presented in the introductory part of the paper. In the experimental part of the research, tests on PRNT (Pipe Ring Notched Tension) and SENT (Single Edge Notched Tension) specimens are performed. Samples of these specimens were produced by SLS (Selective Laser Sintering) technique of additive production from PA12 (polyamide PA 2200) material. For the purpose of this study, a tool that is protected at the national level (in Serbia) as intellectual property is used for testing of the ring-shaped PRNT specimens. Tensile testing of both types of specimens is monitored by Aramis GOM 2M system; its operation is based on the method of digital image correlation, DIC. Additionally, finite element analyses are conducted on the PRNT and SENT geometries, enabling the calculation of the fracture mechanics parameter – Stress intensity factor K. It is concluded that the presented procedure based on the PRNT specimen has a good potential for use as a non-standard method for fracture resistance examination of pipeline materials. It can be performed on the specimens cut directly from the pipes (new or from exploitation). The dependence of the fracture resistance on the stress concentrator size is not pronounced, which means that the results depend dominantly on the material properties, rather than on geometry.",
publisher = "Engineering Fracture Mechanics",
journal = "Engineering Fracture Mechanics",
title = "Selective laser sintered Pipe Ring Notched Tension specimens for examination of fracture properties of pipeline materials",
number = "109573",
volume = "292",
doi = "10.1016/j.engfracmech.2023.109573"
}

Trajković, I., Rakin, M., Milošević, M., Mitrović, N., Travica, M., Sedmak, A.,& Međo, B.. (2023). Selective laser sintered Pipe Ring Notched Tension specimens for examination of fracture properties of pipeline materials. in Engineering Fracture Mechanics
Engineering Fracture Mechanics., 292(109573).
https://doi.org/10.1016/j.engfracmech.2023.109573

Trajković I, Rakin M, Milošević M, Mitrović N, Travica M, Sedmak A, Međo B. Selective laser sintered Pipe Ring Notched Tension specimens for examination of fracture properties of pipeline materials. in Engineering Fracture Mechanics. 2023;292(109573).
doi:10.1016/j.engfracmech.2023.109573 .

Trajković, Isaak, Rakin, Marko, Milošević, Miloš, Mitrović, Nenad, Travica, Milan, Sedmak, Aleksandar, Međo, Bojan, "Selective laser sintered Pipe Ring Notched Tension specimens for examination of fracture properties of pipeline materials" in Engineering Fracture Mechanics, 292, no. 109573 (2023),
https://doi.org/10.1016/j.engfracmech.2023.109573 . .

TY  - JOUR
AU  - Popović, Mihajlo
AU  - Pjević, Miloš
AU  - Milovanović, Aleksa
AU  - Mladenović, Goran
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7198
AB  - High demand for part customization shifts industries toward AM technologies. Part customization in high-volume manufacturing is developed to its limits, whereas low-volume production using AM is still economically unjustified. FDM technology is quite common in low-volume AM production, but the main issue is poor printing parameter optimization which may result in insufficient final part quality. The subject of this paper is the experimental determination of the optimal parameters for the PLA polymer FDM parts, focusing on nozzle temperature and printing speed. Part geometry and mechanical properties are evaluated for the temperature range of 170–210 °C and speeds of 40, 80, and 120 mm/min. Roughness measurements for part geometrical accuracy assessment and tensile tests for mechanical property estimation have shown the clear advantage of 190 °C and 40 mm/min over the other parameter combinations. However, for higher FDM process productivity 80 mm/min speed may also be considered with 190 °C.
PB  - Springer Nature
T2  - Journal of Mechanical Science and Technology
T1  - Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity
EP  - 706
IS  - 2
SP  - 697
VL  - 37
DO  - 10.1007/s12206-023-0113-6
ER  - 

@article{
author = "Popović, Mihajlo and Pjević, Miloš and Milovanović, Aleksa and Mladenović, Goran and Milošević, Miloš",
year = "2023",
abstract = "High demand for part customization shifts industries toward AM technologies. Part customization in high-volume manufacturing is developed to its limits, whereas low-volume production using AM is still economically unjustified. FDM technology is quite common in low-volume AM production, but the main issue is poor printing parameter optimization which may result in insufficient final part quality. The subject of this paper is the experimental determination of the optimal parameters for the PLA polymer FDM parts, focusing on nozzle temperature and printing speed. Part geometry and mechanical properties are evaluated for the temperature range of 170–210 °C and speeds of 40, 80, and 120 mm/min. Roughness measurements for part geometrical accuracy assessment and tensile tests for mechanical property estimation have shown the clear advantage of 190 °C and 40 mm/min over the other parameter combinations. However, for higher FDM process productivity 80 mm/min speed may also be considered with 190 °C.",
publisher = "Springer Nature",
journal = "Journal of Mechanical Science and Technology",
title = "Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity",
pages = "706-697",
number = "2",
volume = "37",
doi = "10.1007/s12206-023-0113-6"
}

Popović, M., Pjević, M., Milovanović, A., Mladenović, G.,& Milošević, M.. (2023). Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity. in Journal of Mechanical Science and Technology
Springer Nature., 37(2), 697-706.
https://doi.org/10.1007/s12206-023-0113-6

Popović M, Pjević M, Milovanović A, Mladenović G, Milošević M. Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity. in Journal of Mechanical Science and Technology. 2023;37(2):697-706.
doi:10.1007/s12206-023-0113-6 .

Popović, Mihajlo, Pjević, Miloš, Milovanović, Aleksa, Mladenović, Goran, Milošević, Miloš, "Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity" in Journal of Mechanical Science and Technology, 37, no. 2 (2023):697-706,
https://doi.org/10.1007/s12206-023-0113-6 . .

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  - JOUR
AU  - Popović, Mihajlo
AU  - Pjević, Miloš
AU  - Milovanović, Aleksa
AU  - Mladenović, Goran
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5903
AB  - High demand for part customization shifts industries toward AM technologies. Part customization in high-volume manufacturing is developed to its limits, whereas low-volume production using AM is still economically unjustified. FDM technology is quite common in low-volume AM production, but the main issue is poor printing parameter optimization which may result in insufficient final part quality. The subject of this paper is the experimental determination of the optimal parameters for the PLA polymer FDM parts, focusing on nozzle temperature and printing speed. Part geometry and mechanical properties are evaluated for the temperature range of 170–210 °C and speeds of 40, 80, and 120 mm/min. Roughness measurements for part geometrical accuracy assessment and tensile tests for mechanical property estimation have shown the clear advantage of 190 °C and 40 mm/min over the other parameter combinations. However, for higher FDM process productivity 80 mm/min speed may also be considered with 190 °C.
PB  - Springer Nature Switzerland
PB  - Seoul, The Korean Society of Mechanical Engineers
T2  - Journal of Mechanical Science and Technology
T1  - Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity
EP  - 706
IS  - 2
SP  - 697
VL  - 37
DO  - 10.1007/s12206-023-0113-6
ER  - 

@article{
author = "Popović, Mihajlo and Pjević, Miloš and Milovanović, Aleksa and Mladenović, Goran and Milošević, Miloš",
year = "2023",
abstract = "High demand for part customization shifts industries toward AM technologies. Part customization in high-volume manufacturing is developed to its limits, whereas low-volume production using AM is still economically unjustified. FDM technology is quite common in low-volume AM production, but the main issue is poor printing parameter optimization which may result in insufficient final part quality. The subject of this paper is the experimental determination of the optimal parameters for the PLA polymer FDM parts, focusing on nozzle temperature and printing speed. Part geometry and mechanical properties are evaluated for the temperature range of 170–210 °C and speeds of 40, 80, and 120 mm/min. Roughness measurements for part geometrical accuracy assessment and tensile tests for mechanical property estimation have shown the clear advantage of 190 °C and 40 mm/min over the other parameter combinations. However, for higher FDM process productivity 80 mm/min speed may also be considered with 190 °C.",
publisher = "Springer Nature Switzerland, Seoul, The Korean Society of Mechanical Engineers",
journal = "Journal of Mechanical Science and Technology",
title = "Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity",
pages = "706-697",
number = "2",
volume = "37",
doi = "10.1007/s12206-023-0113-6"
}

Popović, M., Pjević, M., Milovanović, A., Mladenović, G.,& Milošević, M.. (2023). Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity. in Journal of Mechanical Science and Technology
Springer Nature Switzerland., 37(2), 697-706.
https://doi.org/10.1007/s12206-023-0113-6

Popović M, Pjević M, Milovanović A, Mladenović G, Milošević M. Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity. in Journal of Mechanical Science and Technology. 2023;37(2):697-706.
doi:10.1007/s12206-023-0113-6 .

Popović, Mihajlo, Pjević, Miloš, Milovanović, Aleksa, Mladenović, Goran, Milošević, Miloš, "Printing parameter optimization of PLA material concerning geometrical accuracy and tensile properties relative to FDM process productivity" in Journal of Mechanical Science and Technology, 37, no. 2 (2023):697-706,
https://doi.org/10.1007/s12206-023-0113-6 . .

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  - 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  - 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  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Mitrović, Nenad
AU  - Sedmak, Aleksandar
AU  - Rakin, Marko
AU  - Međo, Bojan
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7700
AB  - A global problem for industrial plants that contain process equipment operating under high pressure is the assessment of the integrity of the equipment, specifically the pipelines. Standard procedures for determining fracture mechanics parameters (ASTM E1820) for materials used in pressure piping construction cannot be applied to most thin-wall pressure components. One of the solutions to this problem is the introduction of new procedures and geometries of test specimens. In order to understand the nature of the behavior of the specimens and to determine the parameters whose critical values are important for integrity assessment of the pipeline under pressure, a detailed analysis of the model of the non-standard ring-shaped specimen is
necessary. This paper will present the results of the analysis of fracture mechanics parameters obtained by the finite element method using the Simulia Abaqus software package. The properties of the material used in the software correspond to the properties of the P235TR1 pipeline material obtained by tensile testing on cylindrical samples with initial crack. The ratio of crack length (a) to sample width (W) corresponds to standard sample geometries and varies from a/W = 0.4 to a/W = 0.6. The values obtained from SENT (Single Edge Notched Tension) models with the same cross-section and a/W ratio were taken as reference values in relation to which the comparison is made. As a result of this research, the ratio of fracture mechanics parameters of the ring-shaped model (Pipe Ring Notched Tension – PRNT specimen) with a crack and the SENT model was obtained. The values of the J-integral were also obtained, distribution of values along the crack front does not correspond to the profile obtained on the SENT model. As a result of this test, a procedure for determining the critical value of the J-integral for models corresponding to the tested P235TR1 pipe samples was established, which is an important step in establishing a new procedure for testing of pipeline materials.
PB  - University of Belgrade - Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2023
T1  - THE INFLUENCE OF CYLLINDRICAL SPECIMEN GEOMETRY ON THE VALUES OF FRACTURE MECHANICS PARAMETERS
SP  - 26
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7700
ER  - 

@conference{
author = "Trajković, Isaak and Milošević, Miloš and Mitrović, Nenad and Sedmak, Aleksandar and Rakin, Marko and Međo, Bojan",
year = "2023",
abstract = "A global problem for industrial plants that contain process equipment operating under high pressure is the assessment of the integrity of the equipment, specifically the pipelines. Standard procedures for determining fracture mechanics parameters (ASTM E1820) for materials used in pressure piping construction cannot be applied to most thin-wall pressure components. One of the solutions to this problem is the introduction of new procedures and geometries of test specimens. In order to understand the nature of the behavior of the specimens and to determine the parameters whose critical values are important for integrity assessment of the pipeline under pressure, a detailed analysis of the model of the non-standard ring-shaped specimen is
necessary. This paper will present the results of the analysis of fracture mechanics parameters obtained by the finite element method using the Simulia Abaqus software package. The properties of the material used in the software correspond to the properties of the P235TR1 pipeline material obtained by tensile testing on cylindrical samples with initial crack. The ratio of crack length (a) to sample width (W) corresponds to standard sample geometries and varies from a/W = 0.4 to a/W = 0.6. The values obtained from SENT (Single Edge Notched Tension) models with the same cross-section and a/W ratio were taken as reference values in relation to which the comparison is made. As a result of this research, the ratio of fracture mechanics parameters of the ring-shaped model (Pipe Ring Notched Tension – PRNT specimen) with a crack and the SENT model was obtained. The values of the J-integral were also obtained, distribution of values along the crack front does not correspond to the profile obtained on the SENT model. As a result of this test, a procedure for determining the critical value of the J-integral for models corresponding to the tested P235TR1 pipe samples was established, which is an important step in establishing a new procedure for testing of pipeline materials.",
publisher = "University of Belgrade - Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2023",
title = "THE INFLUENCE OF CYLLINDRICAL SPECIMEN GEOMETRY ON THE VALUES OF FRACTURE MECHANICS PARAMETERS",
pages = "26",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7700"
}

Trajković, I., Milošević, M., Mitrović, N., Sedmak, A., Rakin, M.,& Međo, B.. (2023). THE INFLUENCE OF CYLLINDRICAL SPECIMEN GEOMETRY ON THE VALUES OF FRACTURE MECHANICS PARAMETERS. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2023
University of Belgrade - Faculty of Mechanical Engineering., 26.
https://hdl.handle.net/21.15107/rcub_machinery_7700

Trajković I, Milošević M, Mitrović N, Sedmak A, Rakin M, Međo B. THE INFLUENCE OF CYLLINDRICAL SPECIMEN GEOMETRY ON THE VALUES OF FRACTURE MECHANICS PARAMETERS. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2023. 2023;:26.
https://hdl.handle.net/21.15107/rcub_machinery_7700 .

Trajković, Isaak, Milošević, Miloš, Mitrović, Nenad, Sedmak, Aleksandar, Rakin, Marko, Međo, Bojan, "THE INFLUENCE OF CYLLINDRICAL SPECIMEN GEOMETRY ON THE VALUES OF FRACTURE MECHANICS PARAMETERS" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2023 (2023):26,
https://hdl.handle.net/21.15107/rcub_machinery_7700 .

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  - CONF
AU  - Mitrović, Nenad
AU  - Golubović, Zorana
AU  - Mitrović, Aleksandra
AU  - Travica, Milan
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Petrović, Aleksandar
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7705
AB  - The three-point bending test is a widely used and important method for evaluating the mechanical properties of materials. Its versatility, applicability, and ability to provide valuable information on flexural strength, stiffness, and fracture toughness make it a valuable tool in materials science, engineering, and biomedical research. Digital Image Correlation (DIC) provides a high resolution and full-field measurement of deformation during the bending process. DIC also allows for the calculation of strain fields, which can be used to determine material properties such as Young's modulus and Poisson's ratio. This is particularly important in understanding the strain distribution and identifying potential failure mechanisms in the material. In this paper, the potential application of the 2D Digital Image Correlation method on three-point bending tests is presented.
PB  - The Academy of Applied Technical Studies "Belgrade"
C3  - International Scientific and Professional Conference Politehnika 2023
T1  - APPLICATION OF 2D DIGITAL IMAGE CORRELATION METHOD ON THREE-POINT BENDING IN MATERIAL TESTING
EP  - 1071
SP  - 1068
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7705
ER  - 

@conference{
author = "Mitrović, Nenad and Golubović, Zorana and Mitrović, Aleksandra and Travica, Milan and Trajković, Isaak and Milošević, Miloš and Petrović, Aleksandar",
year = "2023",
abstract = "The three-point bending test is a widely used and important method for evaluating the mechanical properties of materials. Its versatility, applicability, and ability to provide valuable information on flexural strength, stiffness, and fracture toughness make it a valuable tool in materials science, engineering, and biomedical research. Digital Image Correlation (DIC) provides a high resolution and full-field measurement of deformation during the bending process. DIC also allows for the calculation of strain fields, which can be used to determine material properties such as Young's modulus and Poisson's ratio. This is particularly important in understanding the strain distribution and identifying potential failure mechanisms in the material. In this paper, the potential application of the 2D Digital Image Correlation method on three-point bending tests is presented.",
publisher = "The Academy of Applied Technical Studies "Belgrade"",
journal = "International Scientific and Professional Conference Politehnika 2023",
title = "APPLICATION OF 2D DIGITAL IMAGE CORRELATION METHOD ON THREE-POINT BENDING IN MATERIAL TESTING",
pages = "1071-1068",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7705"
}

Mitrović, N., Golubović, Z., Mitrović, A., Travica, M., Trajković, I., Milošević, M.,& Petrović, A.. (2023). APPLICATION OF 2D DIGITAL IMAGE CORRELATION METHOD ON THREE-POINT BENDING IN MATERIAL TESTING. in International Scientific and Professional Conference Politehnika 2023
The Academy of Applied Technical Studies "Belgrade"., 1068-1071.
https://hdl.handle.net/21.15107/rcub_machinery_7705

Mitrović N, Golubović Z, Mitrović A, Travica M, Trajković I, Milošević M, Petrović A. APPLICATION OF 2D DIGITAL IMAGE CORRELATION METHOD ON THREE-POINT BENDING IN MATERIAL TESTING. in International Scientific and Professional Conference Politehnika 2023. 2023;:1068-1071.
https://hdl.handle.net/21.15107/rcub_machinery_7705 .

Mitrović, Nenad, Golubović, Zorana, Mitrović, Aleksandra, Travica, Milan, Trajković, Isaak, Milošević, Miloš, Petrović, Aleksandar, "APPLICATION OF 2D DIGITAL IMAGE CORRELATION METHOD ON THREE-POINT BENDING IN MATERIAL TESTING" in International Scientific and Professional Conference Politehnika 2023 (2023):1068-1071,
https://hdl.handle.net/21.15107/rcub_machinery_7705 .

TY  - JOUR
AU  - Petrov, Ljubiša
AU  - Bojović, Božica
AU  - Golubović, Zorana
AU  - Sedmak, Aleksandar
AU  - Mišković, Žarko
AU  - Trajković, Isaak
AU  - Milošević, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7149
AB  - Since the beginnings of additive manufacturing (AM) in the 1980s, vat polymerization was the first and most intensively developing technology that enabled the production of very precise parts from photosensitive polymer resins. One of the most studied polymer materials is acrylonitrile butadiene styrene (ABS), but mostly in the form of filaments for the FDM (Fused Deposition Modelling) process. The objective of this research was to investigate in detail the mechanical properties of ABS resin specimens fabricated by stereolithography (SLA) and digital light processing (DLP). Specimen geometries were based on standards for tensile, threepoint bending, and compression tests. By combining deformation and mechanical tests with optical microscopic analyses of the morphology and fracture surface structures, as well as Shore A hardness measurements, a deeper insight into the behaviour of commercially available ABS resins was gained.
T2  - Structural Integrity and Life
T1  - Experimental Mechanical Characterization of Parts Manufactured by SLA and DLP Technologies
EP  - 121
IS  - 2
SP  - 117
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7149
ER  - 

@article{
author = "Petrov, Ljubiša and Bojović, Božica and Golubović, Zorana and Sedmak, Aleksandar and Mišković, Žarko and Trajković, Isaak and Milošević, Miloš",
year = "2023",
abstract = "Since the beginnings of additive manufacturing (AM) in the 1980s, vat polymerization was the first and most intensively developing technology that enabled the production of very precise parts from photosensitive polymer resins. One of the most studied polymer materials is acrylonitrile butadiene styrene (ABS), but mostly in the form of filaments for the FDM (Fused Deposition Modelling) process. The objective of this research was to investigate in detail the mechanical properties of ABS resin specimens fabricated by stereolithography (SLA) and digital light processing (DLP). Specimen geometries were based on standards for tensile, threepoint bending, and compression tests. By combining deformation and mechanical tests with optical microscopic analyses of the morphology and fracture surface structures, as well as Shore A hardness measurements, a deeper insight into the behaviour of commercially available ABS resins was gained.",
journal = "Structural Integrity and Life",
title = "Experimental Mechanical Characterization of Parts Manufactured by SLA and DLP Technologies",
pages = "121-117",
number = "2",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7149"
}

Petrov, L., Bojović, B., Golubović, Z., Sedmak, A., Mišković, Ž., Trajković, I.,& Milošević, M.. (2023). Experimental Mechanical Characterization of Parts Manufactured by SLA and DLP Technologies. in Structural Integrity and Life, 23(2), 117-121.
https://hdl.handle.net/21.15107/rcub_machinery_7149

Petrov L, Bojović B, Golubović Z, Sedmak A, Mišković Ž, Trajković I, Milošević M. Experimental Mechanical Characterization of Parts Manufactured by SLA and DLP Technologies. in Structural Integrity and Life. 2023;23(2):117-121.
https://hdl.handle.net/21.15107/rcub_machinery_7149 .

Petrov, Ljubiša, Bojović, Božica, Golubović, Zorana, Sedmak, Aleksandar, Mišković, Žarko, Trajković, Isaak, Milošević, Miloš, "Experimental Mechanical Characterization of Parts Manufactured by SLA and DLP Technologies" in Structural Integrity and Life, 23, no. 2 (2023):117-121,
https://hdl.handle.net/21.15107/rcub_machinery_7149 .

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 . .