TY  - CONF
AU  - Mitrović, Aleksandra
AU  - Mitrović, Nenad
AU  - Kreculj, Dragan
AU  - Reljić, Mirjana
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7741
AB  - Eco-art and recycling initiatives often involve comprehensive community engagement and participation in specific conditions. This paper explores the synergy between eco-art and recycling processes, as an optimal strategy to advance environmental preservation, alongside the integration of land art with ecological concepts. As environmental concerns escalate, the integration of ecoartistic measures and practices with recycling initiatives emerges as a potential to enhance environmental consciousness and sustainability. The study delves into the interconnectedness of these two disciplines, examining how the creative expression of eco-art can amplify the impact of recycling efforts and activities, leading to heightened environmental awareness and conservation. By detailed examination of the intersections of these creative and ecological disciplines, the research aims to contribute insights into innovative approaches that simultaneously harmonize artistic expression and environmental conservation aspect, with the final important task of protecting our planet and ensuring sustainable development.
PB  - Conference of Academies for Applied Studies in Serbia (CAASS)
C3  - International Multidisciplinary Conference – Challenges of Contemporary Higher Education CCHE 2024
T1  - Merging Eco-Art and Recycling to Advance Environmental Preservation
EP  - 416
SP  - 412
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7741
ER  - 

@conference{
author = "Mitrović, Aleksandra and Mitrović, Nenad and Kreculj, Dragan and Reljić, Mirjana",
year = "2024",
abstract = "Eco-art and recycling initiatives often involve comprehensive community engagement and participation in specific conditions. This paper explores the synergy between eco-art and recycling processes, as an optimal strategy to advance environmental preservation, alongside the integration of land art with ecological concepts. As environmental concerns escalate, the integration of ecoartistic measures and practices with recycling initiatives emerges as a potential to enhance environmental consciousness and sustainability. The study delves into the interconnectedness of these two disciplines, examining how the creative expression of eco-art can amplify the impact of recycling efforts and activities, leading to heightened environmental awareness and conservation. By detailed examination of the intersections of these creative and ecological disciplines, the research aims to contribute insights into innovative approaches that simultaneously harmonize artistic expression and environmental conservation aspect, with the final important task of protecting our planet and ensuring sustainable development.",
publisher = "Conference of Academies for Applied Studies in Serbia (CAASS)",
journal = "International Multidisciplinary Conference – Challenges of Contemporary Higher Education CCHE 2024",
title = "Merging Eco-Art and Recycling to Advance Environmental Preservation",
pages = "416-412",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7741"
}

Mitrović, A., Mitrović, N., Kreculj, D.,& Reljić, M.. (2024). Merging Eco-Art and Recycling to Advance Environmental Preservation. in International Multidisciplinary Conference – Challenges of Contemporary Higher Education CCHE 2024
Conference of Academies for Applied Studies in Serbia (CAASS)., 412-416.
https://hdl.handle.net/21.15107/rcub_machinery_7741

Mitrović A, Mitrović N, Kreculj D, Reljić M. Merging Eco-Art and Recycling to Advance Environmental Preservation. in International Multidisciplinary Conference – Challenges of Contemporary Higher Education CCHE 2024. 2024;:412-416.
https://hdl.handle.net/21.15107/rcub_machinery_7741 .

Mitrović, Aleksandra, Mitrović, Nenad, Kreculj, Dragan, Reljić, Mirjana, "Merging Eco-Art and Recycling to Advance Environmental Preservation" in International Multidisciplinary Conference – Challenges of Contemporary Higher Education CCHE 2024 (2024):412-416,
https://hdl.handle.net/21.15107/rcub_machinery_7741 .

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  - JOUR
AU  - Mitrović, Nenad
AU  - Mitrović, Aleksandra
AU  - Travica, Milan
PY  - 2023
UR  - http://divk.inovacionicentar.rs/ivk/ivk23/009-IVK1-2023-NM-AM-MT.pdf
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7148
AB  - Conventional tensile testing is most commonly used for determining the basic mechanical properties of the material. However, this approach is challenging for in-depth analysis of material behaviour, especially related to heterogeneous materials. The Digital Image Correlation (DIC) method is a contactless optical method that overcomes the constraints of traditional experimental methods (e.g., strain gauge) and allows for full-field displacement and strain measurement. The paper specifically covers 2D-DIC application on tensile testing thin flat specimens prepared using cotton textile with 130 g/m2 density. Results show significant differences in von Mises strain values over the surface of the specimen, ranging from 8 to 24 %. The application of 2D-DIC in this case shows the significance of full-field analysis, as conventional usage of the tensile test would have missed the difference in mechanical properties of adjacent areas on the same specimen. 2D-DIC provides high spatial resolution, accuracy, real-time data acquisition, and visualization, making it a valuable tool for characterizing mechanical properties of thin flat specimens and understanding deformation mechanisms.
T2  - Structural Integrity and Life
T1  - TENSILE TESTING OF FLAT THIN SPECIMENS USING THE TWO-DIMENSIONAL DIGITAL IMAGE CORRELATION METHOD
EP  - 13
SP  - 9
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7148
ER  - 

@article{
author = "Mitrović, Nenad and Mitrović, Aleksandra and Travica, Milan",
year = "2023",
abstract = "Conventional tensile testing is most commonly used for determining the basic mechanical properties of the material. However, this approach is challenging for in-depth analysis of material behaviour, especially related to heterogeneous materials. The Digital Image Correlation (DIC) method is a contactless optical method that overcomes the constraints of traditional experimental methods (e.g., strain gauge) and allows for full-field displacement and strain measurement. The paper specifically covers 2D-DIC application on tensile testing thin flat specimens prepared using cotton textile with 130 g/m2 density. Results show significant differences in von Mises strain values over the surface of the specimen, ranging from 8 to 24 %. The application of 2D-DIC in this case shows the significance of full-field analysis, as conventional usage of the tensile test would have missed the difference in mechanical properties of adjacent areas on the same specimen. 2D-DIC provides high spatial resolution, accuracy, real-time data acquisition, and visualization, making it a valuable tool for characterizing mechanical properties of thin flat specimens and understanding deformation mechanisms.",
journal = "Structural Integrity and Life",
title = "TENSILE TESTING OF FLAT THIN SPECIMENS USING THE TWO-DIMENSIONAL DIGITAL IMAGE CORRELATION METHOD",
pages = "13-9",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7148"
}

Mitrović, N., Mitrović, A.,& Travica, M.. (2023). TENSILE TESTING OF FLAT THIN SPECIMENS USING THE TWO-DIMENSIONAL DIGITAL IMAGE CORRELATION METHOD. in Structural Integrity and Life, 23, 9-13.
https://hdl.handle.net/21.15107/rcub_machinery_7148

Mitrović N, Mitrović A, Travica M. TENSILE TESTING OF FLAT THIN SPECIMENS USING THE TWO-DIMENSIONAL DIGITAL IMAGE CORRELATION METHOD. in Structural Integrity and Life. 2023;23:9-13.
https://hdl.handle.net/21.15107/rcub_machinery_7148 .

Mitrović, Nenad, Mitrović, Aleksandra, Travica, Milan, "TENSILE TESTING OF FLAT THIN SPECIMENS USING THE TWO-DIMENSIONAL DIGITAL IMAGE CORRELATION METHOD" in Structural Integrity and Life, 23 (2023):9-13,
https://hdl.handle.net/21.15107/rcub_machinery_7148 .

TY  - JOUR
AU  - Milovanović, Aleksa
AU  - Golubović, Zorana
AU  - Babinský, Tomáš
AU  - Šulák, Ivo
AU  - Mitrović, Aleksandra
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7195
AB  - Polypropylene (PP) is an extensively studied and tested environment-friendly polymer, whose applications range from product packaging in the food industry to biomedical applications. It is a non-toxic, lightweight material, relatively simple for processing. Research findings show that PP material has higher elongation than any other thermoplastic material used in Fused Deposition Modeling (FDM) technology, which is the most developed and used extrusion-based additive technology. In FDM, many printing parameters must be set before the actual additive manufacturing process, and they have a decisive influence on the mechanical properties of fabricated parts. In this research, layer height, infill density, and raster orientation are the parameters considered in the analysis, resulting in four specimen batches being prepared for tensile testing.
PB  - Society for Structural Integrity and Life
PB  - IMS Institute
T2  - STRUCTURAL INTEGRITY AND LIFE
T1  - Tensile properties of polypropylene additively manufactured by FDM
EP  - 308
IS  - 3
SP  - 305
VL  - 22
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7195
ER  - 

@article{
author = "Milovanović, Aleksa and Golubović, Zorana and Babinský, Tomáš and Šulák, Ivo and Mitrović, Aleksandra",
year = "2022",
abstract = "Polypropylene (PP) is an extensively studied and tested environment-friendly polymer, whose applications range from product packaging in the food industry to biomedical applications. It is a non-toxic, lightweight material, relatively simple for processing. Research findings show that PP material has higher elongation than any other thermoplastic material used in Fused Deposition Modeling (FDM) technology, which is the most developed and used extrusion-based additive technology. In FDM, many printing parameters must be set before the actual additive manufacturing process, and they have a decisive influence on the mechanical properties of fabricated parts. In this research, layer height, infill density, and raster orientation are the parameters considered in the analysis, resulting in four specimen batches being prepared for tensile testing.",
publisher = "Society for Structural Integrity and Life, IMS Institute",
journal = "STRUCTURAL INTEGRITY AND LIFE",
title = "Tensile properties of polypropylene additively manufactured by FDM",
pages = "308-305",
number = "3",
volume = "22",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7195"
}

Milovanović, A., Golubović, Z., Babinský, T., Šulák, I.,& Mitrović, A.. (2022). Tensile properties of polypropylene additively manufactured by FDM. in STRUCTURAL INTEGRITY AND LIFE
Society for Structural Integrity and Life., 22(3), 305-308.
https://hdl.handle.net/21.15107/rcub_machinery_7195

Milovanović A, Golubović Z, Babinský T, Šulák I, Mitrović A. Tensile properties of polypropylene additively manufactured by FDM. in STRUCTURAL INTEGRITY AND LIFE. 2022;22(3):305-308.
https://hdl.handle.net/21.15107/rcub_machinery_7195 .

Milovanović, Aleksa, Golubović, Zorana, Babinský, Tomáš, Šulák, Ivo, Mitrović, Aleksandra, "Tensile properties of polypropylene additively manufactured by FDM" in STRUCTURAL INTEGRITY AND LIFE, 22, no. 3 (2022):305-308,
https://hdl.handle.net/21.15107/rcub_machinery_7195 .

TY  - CONF
AU  - Golubović, Zorana
AU  - Travica, Milan
AU  - Mitrović, Aleksandra
AU  - Trajković, Isaak
AU  - Mitrović, Nenad
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7704
AB  - Poslednjih godina, razvoj 3D štampe je veoma značajan u domenu različitih proizvodnih tehnologija i industrije. Proizvodnja delova na ovaj način je vrlo fleksibilna, jer je na jednom uređaju
moguće napraviti više različitih modela, različite geometrije. Da bi proces 3D štampanja bio izveden na najprecizniji način, potrebno je pažljivo izabrati parametre štampe. U ovom radu prikazano je istraživanje promena temperaturnih polja korišćenjem termovizijske kamere nakon procesa 3D štampe polilaktičnog polimera (PLA), tehnologijom modelovanja istopljenog filamenta (FDM). Cilj rada je utvrđivanje i analiza promena temperatura koje se dešavaju u toku hlađenja uzorka nakon procesa 3D štampe i uticaja na promenu geometrije epruvete.
PB  - Akademija tehničkih strukovnih studija Beograd
C3  - Politehnika 2021
T1  - MOGUĆNOSTI PRAĆENJA TEMPERATURNOG POLJA NAKON PROCESA 3D ŠTAMPE
EP  - 582
SP  - 577
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7704
ER  - 

@conference{
author = "Golubović, Zorana and Travica, Milan and Mitrović, Aleksandra and Trajković, Isaak and Mitrović, Nenad",
year = "2021",
abstract = "Poslednjih godina, razvoj 3D štampe je veoma značajan u domenu različitih proizvodnih tehnologija i industrije. Proizvodnja delova na ovaj način je vrlo fleksibilna, jer je na jednom uređaju
moguće napraviti više različitih modela, različite geometrije. Da bi proces 3D štampanja bio izveden na najprecizniji način, potrebno je pažljivo izabrati parametre štampe. U ovom radu prikazano je istraživanje promena temperaturnih polja korišćenjem termovizijske kamere nakon procesa 3D štampe polilaktičnog polimera (PLA), tehnologijom modelovanja istopljenog filamenta (FDM). Cilj rada je utvrđivanje i analiza promena temperatura koje se dešavaju u toku hlađenja uzorka nakon procesa 3D štampe i uticaja na promenu geometrije epruvete.",
publisher = "Akademija tehničkih strukovnih studija Beograd",
journal = "Politehnika 2021",
title = "MOGUĆNOSTI PRAĆENJA TEMPERATURNOG POLJA NAKON PROCESA 3D ŠTAMPE",
pages = "582-577",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7704"
}

Golubović, Z., Travica, M., Mitrović, A., Trajković, I.,& Mitrović, N.. (2021). MOGUĆNOSTI PRAĆENJA TEMPERATURNOG POLJA NAKON PROCESA 3D ŠTAMPE. in Politehnika 2021
Akademija tehničkih strukovnih studija Beograd., 577-582.
https://hdl.handle.net/21.15107/rcub_machinery_7704

Golubović Z, Travica M, Mitrović A, Trajković I, Mitrović N. MOGUĆNOSTI PRAĆENJA TEMPERATURNOG POLJA NAKON PROCESA 3D ŠTAMPE. in Politehnika 2021. 2021;:577-582.
https://hdl.handle.net/21.15107/rcub_machinery_7704 .

Golubović, Zorana, Travica, Milan, Mitrović, Aleksandra, Trajković, Isaak, Mitrović, Nenad, "MOGUĆNOSTI PRAĆENJA TEMPERATURNOG POLJA NAKON PROCESA 3D ŠTAMPE" in Politehnika 2021 (2021):577-582,
https://hdl.handle.net/21.15107/rcub_machinery_7704 .

Mitrović, N., Mladenović, G.,& Mitrović, A.. (2021). Current Problems in Experimental and Computational Engineering. 
Springer..
https://doi.org/10.1007/978-3-030-86009-7

Mitrović N, Mladenović G, Mitrović A. Current Problems in Experimental and Computational Engineering. 2021;.
doi:10.1007/978-3-030-86009-7 .

Mitrović, Nenad, Mladenović, Goran, Mitrović, Aleksandra, "Current Problems in Experimental and Computational Engineering" (2021),
https://doi.org/10.1007/978-3-030-86009-7 . .

TY  - CONF
AU  - Golubović, Zorana
AU  - Mitrović, Aleksandra
AU  - Milovanović, Aleksa
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7367
AB  - In recent years, 3D printing technology is rapidly developing and constantly leading to new applications. One of the areas which have widely accepted benefits from 3D printing in dentistry, because of its demands to have personalized and customized dental products and appliances. Mostly used 3D printing methods in dentistry include stereolithography (SLA), selective laser sintering (SLS), fused deposition modelling (FDM), and digital light processing (DLP). This paper presents FDM printing technology and its applications in everyday dental practice.
FDM is a widely available technology, easy to be installed, with a relatively reliable quality printed parts. In the fused deposition modelling process, objects are created by layering different types of thermoplastic polymeric filament materials, such as polylactic acid (PLA). The polymer material is extruded through a nozzle device, where a computer controls the temperature and movement of the material. Material is in a semiliquid state, it hardness after the extrusion, and bonds to the previous layer. Parameters for printing that need to be defined are numerous, and dependant on every particular task. Experience from praxis shows that FDM is used for the production and prototyping of pattern of the complete denture, custom bite registrations, basic proof-of-concept models, simple, low-cost prototyping anatomical parts. Disadvantages of this technology are rough surface finish, inhomogeneous density, longer printing time. However, future innovations will alleviate some of the present disadvantages, by, for example, reducing steps that are needed to get the end product.
C3  - International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor)
T1  - FDM printing technology applications in dentistry
SP  - 84
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7367
ER  - 

@conference{
author = "Golubović, Zorana and Mitrović, Aleksandra and Milovanović, Aleksa",
year = "2021",
abstract = "In recent years, 3D printing technology is rapidly developing and constantly leading to new applications. One of the areas which have widely accepted benefits from 3D printing in dentistry, because of its demands to have personalized and customized dental products and appliances. Mostly used 3D printing methods in dentistry include stereolithography (SLA), selective laser sintering (SLS), fused deposition modelling (FDM), and digital light processing (DLP). This paper presents FDM printing technology and its applications in everyday dental practice.
FDM is a widely available technology, easy to be installed, with a relatively reliable quality printed parts. In the fused deposition modelling process, objects are created by layering different types of thermoplastic polymeric filament materials, such as polylactic acid (PLA). The polymer material is extruded through a nozzle device, where a computer controls the temperature and movement of the material. Material is in a semiliquid state, it hardness after the extrusion, and bonds to the previous layer. Parameters for printing that need to be defined are numerous, and dependant on every particular task. Experience from praxis shows that FDM is used for the production and prototyping of pattern of the complete denture, custom bite registrations, basic proof-of-concept models, simple, low-cost prototyping anatomical parts. Disadvantages of this technology are rough surface finish, inhomogeneous density, longer printing time. However, future innovations will alleviate some of the present disadvantages, by, for example, reducing steps that are needed to get the end product.",
journal = "International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor)",
title = "FDM printing technology applications in dentistry",
pages = "84",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7367"
}

Golubović, Z., Mitrović, A.,& Milovanović, A.. (2021). FDM printing technology applications in dentistry. in International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor), 84.
https://hdl.handle.net/21.15107/rcub_machinery_7367

Golubović Z, Mitrović A, Milovanović A. FDM printing technology applications in dentistry. in International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor). 2021;:84.
https://hdl.handle.net/21.15107/rcub_machinery_7367 .

Golubović, Zorana, Mitrović, Aleksandra, Milovanović, Aleksa, "FDM printing technology applications in dentistry" in International conference of experimental and numerical investigations and new technologies (2021 ; Zlatibor) (2021):84,
https://hdl.handle.net/21.15107/rcub_machinery_7367 .

TY  - CONF
AU  - Mitrović, Aleksandra
AU  - Reljić, Mirjana
AU  - Mitrović, Nenad
AU  - Milošević, Miloš
AU  - Hloch, Sergej
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7696
AB  - Medical textile plays an important role in the technical textiles sector as one of the most rapidly growing sectors in the technical textile market. The textile materials should have some adequate mechanical properties to be useful as medical textile. Tensile strength presents one of the basic mechanical properties used to describe textile specimens. Standardized tensile testing procedures on textile specimens were commonly used in the past. The aim of this paper is to measure in-plane displacement field on the tensile textile specimen using 2D Digital Image Correlation method (2D-DIC). 2D-DIC is a non-contact optical method for accurate displacement and strain full-field measurement. In this study, two medical cotton textiles, with density 120 and 130 g/m2,
were used to create three specimens for each material. Each specimen was placed in the tensile testing machine and measured until the break. During the tensile testing, camera was automatically recording full-field displacement in X and Y directions. The results showed that materials has similar displacement values. Also, it has been showed that 2D-DIC can play significant role for measurement of textile mechanical properties.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020
T1  - DISPLACEMENT MAESUREMENT OF MEDICAL TEXTILE SPECIMENS USING 2D DIGITAL IMAGE CORRELATION METHOD
SP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7696
ER  - 

@conference{
author = "Mitrović, Aleksandra and Reljić, Mirjana and Mitrović, Nenad and Milošević, Miloš and Hloch, Sergej",
year = "2020",
abstract = "Medical textile plays an important role in the technical textiles sector as one of the most rapidly growing sectors in the technical textile market. The textile materials should have some adequate mechanical properties to be useful as medical textile. Tensile strength presents one of the basic mechanical properties used to describe textile specimens. Standardized tensile testing procedures on textile specimens were commonly used in the past. The aim of this paper is to measure in-plane displacement field on the tensile textile specimen using 2D Digital Image Correlation method (2D-DIC). 2D-DIC is a non-contact optical method for accurate displacement and strain full-field measurement. In this study, two medical cotton textiles, with density 120 and 130 g/m2,
were used to create three specimens for each material. Each specimen was placed in the tensile testing machine and measured until the break. During the tensile testing, camera was automatically recording full-field displacement in X and Y directions. The results showed that materials has similar displacement values. Also, it has been showed that 2D-DIC can play significant role for measurement of textile mechanical properties.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020",
title = "DISPLACEMENT MAESUREMENT OF MEDICAL TEXTILE SPECIMENS USING 2D DIGITAL IMAGE CORRELATION METHOD",
pages = "81",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7696"
}

Mitrović, A., Reljić, M., Mitrović, N., Milošević, M.,& Hloch, S.. (2020). DISPLACEMENT MAESUREMENT OF MEDICAL TEXTILE SPECIMENS USING 2D DIGITAL IMAGE CORRELATION METHOD. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020
Innovation Center of Faculty of Mechanical Engineering., 81.
https://hdl.handle.net/21.15107/rcub_machinery_7696

Mitrović A, Reljić M, Mitrović N, Milošević M, Hloch S. DISPLACEMENT MAESUREMENT OF MEDICAL TEXTILE SPECIMENS USING 2D DIGITAL IMAGE CORRELATION METHOD. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020. 2020;:81.
https://hdl.handle.net/21.15107/rcub_machinery_7696 .

Mitrović, Aleksandra, Reljić, Mirjana, Mitrović, Nenad, Milošević, Miloš, Hloch, Sergej, "DISPLACEMENT MAESUREMENT OF MEDICAL TEXTILE SPECIMENS USING 2D DIGITAL IMAGE CORRELATION METHOD" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020 (2020):81,
https://hdl.handle.net/21.15107/rcub_machinery_7696 .

TY  - CONF
AU  - Tanasković, Jovan
AU  - Mitrovic, Aleksandra
AU  - Franklin, Francis J.
AU  - Milković, Dragan
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5973
AB  - Safety of railway vehicles is one of the most importance steps in developing and design of them. Passive safety elements have a role to reduce consequences of collision to a minimal by absorbing collision kinetic energy. Applying a proper standard and adequate design of railway vehicle structure has a direct impact on safety of railway traffic. One of many ways for collision energy absorption is the tube energy absorber which works on the principle of shrinking the foam filled tube passing through special cone bushing. Fill made from high density polyurethane has a role to increase deformation resistance during elastic-plastic deformation of the tube. Seamless tube was made from low carbon steel while the cone bushing was made from quench and tempered carbon steel. This type of absorber is designed to install in a line (behind) with standard buffer. Using this type of absorber energy absorption occurs by elastic-plastic deformation of the tube, friction between the tube and cone bushing and pressing of the foam. With the aim to show influence of the density of the foam on absorption power, experimental investigations of tubes filled by polyurethane foam of different density were done. Results of experimental investigations show that increase of density gives higher deformation resistance as well as higher absorption power. Further investigations will be directed to improve of absorption characteristics by chose a most acceptable density of foam.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract
T1  - Impact of density of polyurethane foam on absorption power of energy absorber
EP  - 31
SP  - 31
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5973
ER  - 

@conference{
author = "Tanasković, Jovan and Mitrovic, Aleksandra and Franklin, Francis J. and Milković, Dragan",
year = "2018",
abstract = "Safety of railway vehicles is one of the most importance steps in developing and design of them. Passive safety elements have a role to reduce consequences of collision to a minimal by absorbing collision kinetic energy. Applying a proper standard and adequate design of railway vehicle structure has a direct impact on safety of railway traffic. One of many ways for collision energy absorption is the tube energy absorber which works on the principle of shrinking the foam filled tube passing through special cone bushing. Fill made from high density polyurethane has a role to increase deformation resistance during elastic-plastic deformation of the tube. Seamless tube was made from low carbon steel while the cone bushing was made from quench and tempered carbon steel. This type of absorber is designed to install in a line (behind) with standard buffer. Using this type of absorber energy absorption occurs by elastic-plastic deformation of the tube, friction between the tube and cone bushing and pressing of the foam. With the aim to show influence of the density of the foam on absorption power, experimental investigations of tubes filled by polyurethane foam of different density were done. Results of experimental investigations show that increase of density gives higher deformation resistance as well as higher absorption power. Further investigations will be directed to improve of absorption characteristics by chose a most acceptable density of foam.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract",
title = "Impact of density of polyurethane foam on absorption power of energy absorber",
pages = "31-31",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5973"
}

Tanasković, J., Mitrovic, A., Franklin, F. J.,& Milković, D.. (2018). Impact of density of polyurethane foam on absorption power of energy absorber. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract
Innovation Center of Faculty of Mechanical Engineering., 31-31.
https://hdl.handle.net/21.15107/rcub_machinery_5973

Tanasković J, Mitrovic A, Franklin FJ, Milković D. Impact of density of polyurethane foam on absorption power of energy absorber. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract. 2018;:31-31.
https://hdl.handle.net/21.15107/rcub_machinery_5973 .

Tanasković, Jovan, Mitrovic, Aleksandra, Franklin, Francis J., Milković, Dragan, "Impact of density of polyurethane foam on absorption power of energy absorber" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2018, The book of Abstract (2018):31-31,
https://hdl.handle.net/21.15107/rcub_machinery_5973 .

TY  - JOUR
AU  - Jovanovic, Tamara
AU  - Koruga, Djuro
AU  - Mitrovic, Aleksandra
AU  - Stamenkovic, Dragomir
AU  - Devic, Gordana
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5112
T2  - Journal of Nanomaterials
T1  - IR and UV/VIS Spectroscopic Characterization of the Higher Fullerene C76-D2 for Its Quantitative and Qualitative Determination
SP  - 6862710
VL  - 2018
DO  - 10.1155/2018/6862710
ER  - 

@article{
author = "Jovanovic, Tamara and Koruga, Djuro and Mitrovic, Aleksandra and Stamenkovic, Dragomir and Devic, Gordana",
year = "2018",
journal = "Journal of Nanomaterials",
title = "IR and UV/VIS Spectroscopic Characterization of the Higher Fullerene C76-D2 for Its Quantitative and Qualitative Determination",
pages = "6862710",
volume = "2018",
doi = "10.1155/2018/6862710"
}

Jovanovic, T., Koruga, D., Mitrovic, A., Stamenkovic, D.,& Devic, G.. (2018). IR and UV/VIS Spectroscopic Characterization of the Higher Fullerene C76-D2 for Its Quantitative and Qualitative Determination. in Journal of Nanomaterials, 2018, 6862710.
https://doi.org/10.1155/2018/6862710

Jovanovic T, Koruga D, Mitrovic A, Stamenkovic D, Devic G. IR and UV/VIS Spectroscopic Characterization of the Higher Fullerene C76-D2 for Its Quantitative and Qualitative Determination. in Journal of Nanomaterials. 2018;2018:6862710.
doi:10.1155/2018/6862710 .

Jovanovic, Tamara, Koruga, Djuro, Mitrovic, Aleksandra, Stamenkovic, Dragomir, Devic, Gordana, "IR and UV/VIS Spectroscopic Characterization of the Higher Fullerene C76-D2 for Its Quantitative and Qualitative Determination" in Journal of Nanomaterials, 2018 (2018):6862710,
https://doi.org/10.1155/2018/6862710 . .

TY  - CONF
AU  - Tanasić, Ivan
AU  - Mitrović, Aleksandra
AU  - Mitrović, Nenad
AU  - Milošević, Miloš
AU  - Antonović, Dušan
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7683
AB  - Recently, resin based cements have become very popular in dental practice for cementation of dental restorations, especially considering all-ceramics, due to improved adhesion features. The aim of this study was to visualize and compare strain in the self-cured and dual-cured MaxCem Elite and to investigate hardness of these two curing modes of the same cement. Strain field was measured using 3D optical system Aramis 2M (GOM, Braunschweig, Germany) based on digital image correlation method. Ten, 5 × 2 mm sized samples of the self-cured and dual-cured Maxcem Elite (Kerr, Orange, CA, USA) were prepared by filling plastic ring-type molds. Analysis of the strain fields was done using sections and stage points created by software. The distribution of the overall strain was found to be more expressive and uniform in the self-cured samples. Overall shrinkage strain ranged from 0 to 12%. Samples with dual-curing mode showed higher strain peripherally, compared to self-cured samples where the overall strain was distributed all over the
sample surface. The Vickers measurements could not be carried out on self-cured samples due to
incomplete chemical polymerization. The values of hardness were relatively equal in dual-cured Maxcem Elite due to hardness is interpreted as a statistical magnitude practically depends on the composition of the tested structure. Additionally, closeness between cements layers and led lamp was a factor for increasing hardness values in dual–cured Maxcem Elite. The study provided valuable data about strain behavior of Maxcem Elite during polymerization and highlighted dual-cured over self-cured mode.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017
T1  - BIOMECHANICAL ANALYSIS OF DIFFERENT MODES OF THE SAME COMPOSITE CEMENT USING THE DIGITAL IMAGE CORRELATION METHOD
SP  - 34
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7683
ER  - 

@conference{
author = "Tanasić, Ivan and Mitrović, Aleksandra and Mitrović, Nenad and Milošević, Miloš and Antonović, Dušan",
year = "2017",
abstract = "Recently, resin based cements have become very popular in dental practice for cementation of dental restorations, especially considering all-ceramics, due to improved adhesion features. The aim of this study was to visualize and compare strain in the self-cured and dual-cured MaxCem Elite and to investigate hardness of these two curing modes of the same cement. Strain field was measured using 3D optical system Aramis 2M (GOM, Braunschweig, Germany) based on digital image correlation method. Ten, 5 × 2 mm sized samples of the self-cured and dual-cured Maxcem Elite (Kerr, Orange, CA, USA) were prepared by filling plastic ring-type molds. Analysis of the strain fields was done using sections and stage points created by software. The distribution of the overall strain was found to be more expressive and uniform in the self-cured samples. Overall shrinkage strain ranged from 0 to 12%. Samples with dual-curing mode showed higher strain peripherally, compared to self-cured samples where the overall strain was distributed all over the
sample surface. The Vickers measurements could not be carried out on self-cured samples due to
incomplete chemical polymerization. The values of hardness were relatively equal in dual-cured Maxcem Elite due to hardness is interpreted as a statistical magnitude practically depends on the composition of the tested structure. Additionally, closeness between cements layers and led lamp was a factor for increasing hardness values in dual–cured Maxcem Elite. The study provided valuable data about strain behavior of Maxcem Elite during polymerization and highlighted dual-cured over self-cured mode.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017",
title = "BIOMECHANICAL ANALYSIS OF DIFFERENT MODES OF THE SAME COMPOSITE CEMENT USING THE DIGITAL IMAGE CORRELATION METHOD",
pages = "34",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7683"
}

Tanasić, I., Mitrović, A., Mitrović, N., Milošević, M.,& Antonović, D.. (2017). BIOMECHANICAL ANALYSIS OF DIFFERENT MODES OF THE SAME COMPOSITE CEMENT USING THE DIGITAL IMAGE CORRELATION METHOD. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017
Innovation Center of Faculty of Mechanical Engineering., 34.
https://hdl.handle.net/21.15107/rcub_machinery_7683

Tanasić I, Mitrović A, Mitrović N, Milošević M, Antonović D. BIOMECHANICAL ANALYSIS OF DIFFERENT MODES OF THE SAME COMPOSITE CEMENT USING THE DIGITAL IMAGE CORRELATION METHOD. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017. 2017;:34.
https://hdl.handle.net/21.15107/rcub_machinery_7683 .

Tanasić, Ivan, Mitrović, Aleksandra, Mitrović, Nenad, Milošević, Miloš, Antonović, Dušan, "BIOMECHANICAL ANALYSIS OF DIFFERENT MODES OF THE SAME COMPOSITE CEMENT USING THE DIGITAL IMAGE CORRELATION METHOD" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017 (2017):34,
https://hdl.handle.net/21.15107/rcub_machinery_7683 .

TY  - CONF
AU  - Tanasković, Jovan
AU  - Mitrovic, Aleksandra
AU  - Milković, Dragan
AU  - Golubović, Snežana
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5976
AB  - This paper describes experimental research of improved type of collision kinetic energy absorber. Absorber
works on the principle of shrinking a foam filled tube of circular cross section. During collision, a seamless
tube is passing through a special cone bush, extrusion the tube and compressing the foam. Energy is
absorbed by the plastic deformation of the tube, friction between the tube and the cone bush and through
deformation of the PU foam. The tubes were filled with PU foam higher density. This new type of absorber
enables gradual increase of deformation resistance and greater absorption power with compact dimensions.
Scaled samples have been tested in the laboratory conditions. The influence of the PU foam and different
geometries on absorption characteristics, as well as the benefits of using such an absorber, are presented
and discussed in this paper. The results show that the foam filled absorber has approximately 12% higher
absorption power than the only extrusion absorber by itself.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017, The book of Abstract
T1  - Axial crushing analysis of characteristics of empty and foam filled circular tubes
EP  - 10
SP  - 10
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5976
ER  - 

@conference{
author = "Tanasković, Jovan and Mitrovic, Aleksandra and Milković, Dragan and Golubović, Snežana",
year = "2017",
abstract = "This paper describes experimental research of improved type of collision kinetic energy absorber. Absorber
works on the principle of shrinking a foam filled tube of circular cross section. During collision, a seamless
tube is passing through a special cone bush, extrusion the tube and compressing the foam. Energy is
absorbed by the plastic deformation of the tube, friction between the tube and the cone bush and through
deformation of the PU foam. The tubes were filled with PU foam higher density. This new type of absorber
enables gradual increase of deformation resistance and greater absorption power with compact dimensions.
Scaled samples have been tested in the laboratory conditions. The influence of the PU foam and different
geometries on absorption characteristics, as well as the benefits of using such an absorber, are presented
and discussed in this paper. The results show that the foam filled absorber has approximately 12% higher
absorption power than the only extrusion absorber by itself.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017, The book of Abstract",
title = "Axial crushing analysis of characteristics of empty and foam filled circular tubes",
pages = "10-10",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5976"
}

Tanasković, J., Mitrovic, A., Milković, D.,& Golubović, S.. (2017). Axial crushing analysis of characteristics of empty and foam filled circular tubes. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017, The book of Abstract
Innovation Center of Faculty of Mechanical Engineering., 10-10.
https://hdl.handle.net/21.15107/rcub_machinery_5976

Tanasković J, Mitrovic A, Milković D, Golubović S. Axial crushing analysis of characteristics of empty and foam filled circular tubes. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017, The book of Abstract. 2017;:10-10.
https://hdl.handle.net/21.15107/rcub_machinery_5976 .

Tanasković, Jovan, Mitrovic, Aleksandra, Milković, Dragan, Golubović, Snežana, "Axial crushing analysis of characteristics of empty and foam filled circular tubes" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017, The book of Abstract (2017):10-10,
https://hdl.handle.net/21.15107/rcub_machinery_5976 .