Milovanovic, Aleksa

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  • Milovanovic, Aleksa (2)
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Mechanical characteristics of parts obtained by sls printing technology

Jevtić, Ivana; Mladenović, Goran; Milošević, Miloš; Milovanovic, Aleksa; Trajković, Isaak; Travica, Milan

(University of Belgrade – Faculty of Mechanical Engineering, 2022)

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

Development of the experimental methodology of strain measurement simulated in partly-edentulous artificial mandible

Milovanovic, Aleksa; Milošević, Miloš; Maneski, Taško; Mitrović, Nenad; Travica, Milan; Poštić, Srđan; Mladenović, Goran

(Belgrade : Innovation Center of Faculty of Mechanical Engineering, 2019)

TY  - CONF
AU  - Milovanovic, Aleksa
AU  - Milošević, Miloš
AU  - Maneski, Taško
AU  - Mitrović, Nenad
AU  - Travica, Milan
AU  - Poštić, Srđan
AU  - Mladenović, Goran
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6936
AB  - Examination of strain field underneath the teeth and bone structure of mandible for "in vitro" conditions requires thorough preparation of the examinee and equipment. For the purpose of examination of different regions of partly-edentulous mandible, the design solutions for examination of strain fields located on the determined points have been shown for different types of compensations.
Strain measurement was performed using contactless optical 3D system ARAMIS 2.0. Mandible model with several remaining teeth was additively manufactured using SLA technology. The measurement of acting force was performed using a dynamometer, with the maximum applied force intensity of BOON. The results of this study showed that developed experimental setup enables comparison of influence of different teeth geometries and metal compensation designs to the selected areas of artificial partly-edentulous mandible resulting in specific strain distribution.
PB  - Belgrade : Innovation Center of Faculty of Mechanical Engineering
C3  - 3rd International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2019, Zlatibor, July 02-05.
T1  - Development of the experimental methodology of strain measurement simulated in partly-edentulous artificial mandible
EP  - 36
SP  - 36
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6936
ER  - 
@conference{
author = "Milovanovic, Aleksa and Milošević, Miloš and Maneski, Taško and Mitrović, Nenad and Travica, Milan and Poštić, Srđan and Mladenović, Goran",
year = "2019",
abstract = "Examination of strain field underneath the teeth and bone structure of mandible for "in vitro" conditions requires thorough preparation of the examinee and equipment. For the purpose of examination of different regions of partly-edentulous mandible, the design solutions for examination of strain fields located on the determined points have been shown for different types of compensations.
Strain measurement was performed using contactless optical 3D system ARAMIS 2.0. Mandible model with several remaining teeth was additively manufactured using SLA technology. The measurement of acting force was performed using a dynamometer, with the maximum applied force intensity of BOON. The results of this study showed that developed experimental setup enables comparison of influence of different teeth geometries and metal compensation designs to the selected areas of artificial partly-edentulous mandible resulting in specific strain distribution.",
publisher = "Belgrade : Innovation Center of Faculty of Mechanical Engineering",
journal = "3rd International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2019, Zlatibor, July 02-05.",
title = "Development of the experimental methodology of strain measurement simulated in partly-edentulous artificial mandible",
pages = "36-36",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6936"
}
Milovanovic, A., Milošević, M., Maneski, T., Mitrović, N., Travica, M., Poštić, S.,& Mladenović, G.. (2019). Development of the experimental methodology of strain measurement simulated in partly-edentulous artificial mandible. in 3rd International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2019, Zlatibor, July 02-05.
Belgrade : Innovation Center of Faculty of Mechanical Engineering., 36-36.
https://hdl.handle.net/21.15107/rcub_machinery_6936
Milovanovic A, Milošević M, Maneski T, Mitrović N, Travica M, Poštić S, Mladenović G. Development of the experimental methodology of strain measurement simulated in partly-edentulous artificial mandible. in 3rd International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2019, Zlatibor, July 02-05.. 2019;:36-36.
https://hdl.handle.net/21.15107/rcub_machinery_6936 .
Milovanovic, Aleksa, Milošević, Miloš, Maneski, Taško, Mitrović, Nenad, Travica, Milan, Poštić, Srđan, Mladenović, Goran, "Development of the experimental methodology of strain measurement simulated in partly-edentulous artificial mandible" in 3rd International Conference of Experimental and Numerical Investigations and New Technologies – CNN TECH 2019, Zlatibor, July 02-05. (2019):36-36,
https://hdl.handle.net/21.15107/rcub_machinery_6936 .