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  - CONF
AU  - Travica, Milan
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7706
AB  - Different pipe manufacturing techniques, such as the manufacture of seamless pipes in the oil sector employing a conical shaft, necessitate data on the circumferential strain and stress condition of the pipe. The purpose of this study was to evaluating the displacement, strain, and stress behavior of a pipe ring tensile specimen (PRTS) in the hoop direction, as there was a lack of a standardized testing methodology. Five single S235JRH steel PRTS were tested for the study. The study describes how to test S235JRH steel PRTS with a Digital Image Correlation approach. The 3D Digital Image Correlation technique methodology was used to record the evolution of the strain. In the break zone and almost equivalent locations, all Single PRTS fractured. The experimental ultimate strength value's deviation value (also known as the real stress value) is greater than the theoretical ultimate strength value.
PB  - The Academy of Applied Technical Studies "Belgrade"
C3  - International Scientific and Professional Conference Politehnika 2023
T1  - STRAIN BEHAVIOR ANALYSIS OF STEEL S235JRH RING SPECIMENS
EP  - 1134
SP  - 1131
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7706
ER  - 

@conference{
author = "Travica, Milan and Mitrović, Nenad and Petrović, Aleksandar",
year = "2023",
abstract = "Different pipe manufacturing techniques, such as the manufacture of seamless pipes in the oil sector employing a conical shaft, necessitate data on the circumferential strain and stress condition of the pipe. The purpose of this study was to evaluating the displacement, strain, and stress behavior of a pipe ring tensile specimen (PRTS) in the hoop direction, as there was a lack of a standardized testing methodology. Five single S235JRH steel PRTS were tested for the study. The study describes how to test S235JRH steel PRTS with a Digital Image Correlation approach. The 3D Digital Image Correlation technique methodology was used to record the evolution of the strain. In the break zone and almost equivalent locations, all Single PRTS fractured. The experimental ultimate strength value's deviation value (also known as the real stress value) is greater than the theoretical ultimate strength value.",
publisher = "The Academy of Applied Technical Studies "Belgrade"",
journal = "International Scientific and Professional Conference Politehnika 2023",
title = "STRAIN BEHAVIOR ANALYSIS OF STEEL S235JRH RING SPECIMENS",
pages = "1134-1131",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7706"
}

Travica, M., Mitrović, N.,& Petrović, A.. (2023). STRAIN BEHAVIOR ANALYSIS OF STEEL S235JRH RING SPECIMENS. in International Scientific and Professional Conference Politehnika 2023
The Academy of Applied Technical Studies "Belgrade"., 1131-1134.
https://hdl.handle.net/21.15107/rcub_machinery_7706

Travica M, Mitrović N, Petrović A. STRAIN BEHAVIOR ANALYSIS OF STEEL S235JRH RING SPECIMENS. in International Scientific and Professional Conference Politehnika 2023. 2023;:1131-1134.
https://hdl.handle.net/21.15107/rcub_machinery_7706 .

Travica, Milan, Mitrović, Nenad, Petrović, Aleksandar, "STRAIN BEHAVIOR ANALYSIS OF STEEL S235JRH RING SPECIMENS" in International Scientific and Professional Conference Politehnika 2023 (2023):1131-1134,
https://hdl.handle.net/21.15107/rcub_machinery_7706 .

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  - Golubović, Zorana
AU  - Travica, Milan
AU  - Trajković, Isaak
AU  - Petrović, Aleksandar
AU  - Mišković, Žarko
AU  - Mitrović, Nenad
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4705
AB  - Fused deposition modeling is one of the most widely used 3-D printing technologies, among other additive manufacturing processes, because it is easy to use,
can produce parts faster, and the cost of the finished part is low. Printing processes and finished parts are often studied and characterized using different
techniques to collect mechanical, numerical, thermal and dimensional data, with
the aim of improving and optimizing the result. The first part of this research is
based on the observation of temperature changes with a thermal imaging camera
during the fused deposition modeling printing process and during the cooling
process after printing. Specimens of polylactic acid and polylactic acid-X improved with second-phase particles were prepared to compare the thermal and
dimensional properties of the two materials. The obtained results determined the
characteristic temperature behavior of the materials. In the second part of the research, a 3-D optical scanner was used to verify the stability and accuracy of the
printed specimens over time. The proposed measurement period showed that stabilization of the parameters takes place, and further follow-up should be performed thereafter.
PB  - Beograd : Institut za nuklearne nauke Vinča
T2  - Thermal Science
T1  - Investigation of thermal and dimensional behavior of 3-D printed materials using thermal imaging and 3-D scanning
EP  - 31
SP  - 21
VL  - 27
DO  - 10.2298/TSCI2301021G
ER  - 

@article{
author = "Golubović, Zorana and Travica, Milan and Trajković, Isaak and Petrović, Aleksandar and Mišković, Žarko and Mitrović, Nenad",
year = "2023",
abstract = "Fused deposition modeling is one of the most widely used 3-D printing technologies, among other additive manufacturing processes, because it is easy to use,
can produce parts faster, and the cost of the finished part is low. Printing processes and finished parts are often studied and characterized using different
techniques to collect mechanical, numerical, thermal and dimensional data, with
the aim of improving and optimizing the result. The first part of this research is
based on the observation of temperature changes with a thermal imaging camera
during the fused deposition modeling printing process and during the cooling
process after printing. Specimens of polylactic acid and polylactic acid-X improved with second-phase particles were prepared to compare the thermal and
dimensional properties of the two materials. The obtained results determined the
characteristic temperature behavior of the materials. In the second part of the research, a 3-D optical scanner was used to verify the stability and accuracy of the
printed specimens over time. The proposed measurement period showed that stabilization of the parameters takes place, and further follow-up should be performed thereafter.",
publisher = "Beograd : Institut za nuklearne nauke Vinča",
journal = "Thermal Science",
title = "Investigation of thermal and dimensional behavior of 3-D printed materials using thermal imaging and 3-D scanning",
pages = "31-21",
volume = "27",
doi = "10.2298/TSCI2301021G"
}

Golubović, Z., Travica, M., Trajković, I., Petrović, A., Mišković, Ž.,& Mitrović, N.. (2023). Investigation of thermal and dimensional behavior of 3-D printed materials using thermal imaging and 3-D scanning. in Thermal Science
Beograd : Institut za nuklearne nauke Vinča., 27, 21-31.
https://doi.org/10.2298/TSCI2301021G

Golubović Z, Travica M, Trajković I, Petrović A, Mišković Ž, Mitrović N. Investigation of thermal and dimensional behavior of 3-D printed materials using thermal imaging and 3-D scanning. in Thermal Science. 2023;27:21-31.
doi:10.2298/TSCI2301021G .

Golubović, Zorana, Travica, Milan, Trajković, Isaak, Petrović, Aleksandar, Mišković, Žarko, Mitrović, Nenad, "Investigation of thermal and dimensional behavior of 3-D printed materials using thermal imaging and 3-D scanning" in Thermal Science, 27 (2023):21-31,
https://doi.org/10.2298/TSCI2301021G . .

TY  - CONF
AU  - Travica, Milan
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Sedmak, Aleksandar
AU  - Berto, Filippo
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7698
AB  - For various pipe manufacturing methods, data on the pipe's strain and stress state in the circumferential direction is necessary (e.g. in the oil industry, the process of manufacturing seamless pipes with a conical shaft). The purpose of this research is to create a method for determining the strain and stress behaviour of Pipe Ring Tensile Specimens (PRTS) in the hoop direction. The absence of official methods for assessing a PRTS suggests that it could be developed. The implementation of the digital image correlation approach for evaluating plastic PRTS is discussed in this research. A specially constructed steel instrument with two D blocks is used to test PRTS. Two D-shaped mandrels are fixed on the tensile tool and tensile testing equipment, and a 3D printed PRTS is placed over them. The three-dimensional Digital Image Correlation (3D DIC) approach was used to capture the strain evolution in the gage length of the specimens. All specimens are 3D scanned to evaluate the geometry of the PRTS cross-section following fracture. Six groups of PRTS were studied, with three different filling percentages (60, 90, and 100 percent) and two different geometric kinds (Single and Double PRTS). The results reveal that the kind and percentage of filling, as well as the printing method, affect material behaviour; however, the methodology using a DIC system, 3D printer, and scanner is an excellent tool for mapping entire strain fields in PRTS and thereby defining pipe mechanical properties.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2022
T1  - PIPE RING TENSILE SPECIMENS STRAIN MEASUREMENT
SP  - 11
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7698
ER  - 

@conference{
author = "Travica, Milan and Mitrović, Nenad and Petrović, Aleksandar and Trajković, Isaak and Milošević, Miloš and Sedmak, Aleksandar and Berto, Filippo",
year = "2022",
abstract = "For various pipe manufacturing methods, data on the pipe's strain and stress state in the circumferential direction is necessary (e.g. in the oil industry, the process of manufacturing seamless pipes with a conical shaft). The purpose of this research is to create a method for determining the strain and stress behaviour of Pipe Ring Tensile Specimens (PRTS) in the hoop direction. The absence of official methods for assessing a PRTS suggests that it could be developed. The implementation of the digital image correlation approach for evaluating plastic PRTS is discussed in this research. A specially constructed steel instrument with two D blocks is used to test PRTS. Two D-shaped mandrels are fixed on the tensile tool and tensile testing equipment, and a 3D printed PRTS is placed over them. The three-dimensional Digital Image Correlation (3D DIC) approach was used to capture the strain evolution in the gage length of the specimens. All specimens are 3D scanned to evaluate the geometry of the PRTS cross-section following fracture. Six groups of PRTS were studied, with three different filling percentages (60, 90, and 100 percent) and two different geometric kinds (Single and Double PRTS). The results reveal that the kind and percentage of filling, as well as the printing method, affect material behaviour; however, the methodology using a DIC system, 3D printer, and scanner is an excellent tool for mapping entire strain fields in PRTS and thereby defining pipe mechanical properties.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2022",
title = "PIPE RING TENSILE SPECIMENS STRAIN MEASUREMENT",
pages = "11",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7698"
}

Travica, M., Mitrović, N., Petrović, A., Trajković, I., Milošević, M., Sedmak, A.,& Berto, F.. (2022). PIPE RING TENSILE SPECIMENS STRAIN MEASUREMENT. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2022
Innovation Center of Faculty of Mechanical Engineering., 11.
https://hdl.handle.net/21.15107/rcub_machinery_7698

Travica M, Mitrović N, Petrović A, Trajković I, Milošević M, Sedmak A, Berto F. PIPE RING TENSILE SPECIMENS STRAIN MEASUREMENT. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2022. 2022;:11.
https://hdl.handle.net/21.15107/rcub_machinery_7698 .

Travica, Milan, Mitrović, Nenad, Petrović, Aleksandar, Trajković, Isaak, Milošević, Miloš, Sedmak, Aleksandar, Berto, Filippo, "PIPE RING TENSILE SPECIMENS STRAIN MEASUREMENT" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2022 (2022):11,
https://hdl.handle.net/21.15107/rcub_machinery_7698 .

TY  - CONF
AU  - Golubović, Zorana
AU  - Travica, Milan
AU  - Trajković, Isaak
AU  - Petrović, Aleksandar
AU  - Mišković, Žarko
AU  - Mitrović, Nenad
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7152
AB  - Fused deposition modelling is, among the other additive manufacturing processes, one of the 
most frequently used three-dimensional printing technologies, because of its ease of use, high speed in production and low cost of the final part. Printing processes and finished parts are often examined and characterized using various techniques, for gathering the mechanical, numerical, thermal, dimensional data, with goal to improve and optimize the outcome. The first part of this research is 
based on the following the temperature changes using thermal imaging camera during fused deposi-
tion modelling printing processes and during cooling process after printing is finished. Specimens 
were made from polylactic acid and polylactic acid - X improved with second-phase particles, in 
order to compare thermal and dimensional characteristics of both materials. Obtained results determined characteristic temperature behavior of materials. The second part of research employed optical 3D scanner for verification the stability and accuracy of printed specimens over time. Proposed period of measuring has shown that stabilization of parameters is taking place, and further follow-up should be done afterwards.
C3  - Proceedins of the 35th International Conference of Process Industry - Processing 2022
T1  - Investigation of Thermal and Dimensional Behavior of 3D Printed Materials Using Thermal Imaging and 3D Scanning
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7152
ER  - 

@conference{
author = "Golubović, Zorana and Travica, Milan and Trajković, Isaak and Petrović, Aleksandar and Mišković, Žarko and Mitrović, Nenad",
year = "2022",
abstract = "Fused deposition modelling is, among the other additive manufacturing processes, one of the 
most frequently used three-dimensional printing technologies, because of its ease of use, high speed in production and low cost of the final part. Printing processes and finished parts are often examined and characterized using various techniques, for gathering the mechanical, numerical, thermal, dimensional data, with goal to improve and optimize the outcome. The first part of this research is 
based on the following the temperature changes using thermal imaging camera during fused deposi-
tion modelling printing processes and during cooling process after printing is finished. Specimens 
were made from polylactic acid and polylactic acid - X improved with second-phase particles, in 
order to compare thermal and dimensional characteristics of both materials. Obtained results determined characteristic temperature behavior of materials. The second part of research employed optical 3D scanner for verification the stability and accuracy of printed specimens over time. Proposed period of measuring has shown that stabilization of parameters is taking place, and further follow-up should be done afterwards.",
journal = "Proceedins of the 35th International Conference of Process Industry - Processing 2022",
title = "Investigation of Thermal and Dimensional Behavior of 3D Printed Materials Using Thermal Imaging and 3D Scanning",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7152"
}

Golubović, Z., Travica, M., Trajković, I., Petrović, A., Mišković, Ž.,& Mitrović, N.. (2022). Investigation of Thermal and Dimensional Behavior of 3D Printed Materials Using Thermal Imaging and 3D Scanning. in Proceedins of the 35th International Conference of Process Industry - Processing 2022.
https://hdl.handle.net/21.15107/rcub_machinery_7152

Golubović Z, Travica M, Trajković I, Petrović A, Mišković Ž, Mitrović N. Investigation of Thermal and Dimensional Behavior of 3D Printed Materials Using Thermal Imaging and 3D Scanning. in Proceedins of the 35th International Conference of Process Industry - Processing 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7152 .

Golubović, Zorana, Travica, Milan, Trajković, Isaak, Petrović, Aleksandar, Mišković, Žarko, Mitrović, Nenad, "Investigation of Thermal and Dimensional Behavior of 3D Printed Materials Using Thermal Imaging and 3D Scanning" in Proceedins of the 35th International Conference of Process Industry - Processing 2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7152 .

TY  - JOUR
AU  - Travica, Milan
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
AU  - Trajković, Isaak
AU  - Milošević, Miloš
AU  - Sedmak, Aleksandar
AU  - Berto, Filippo
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4673
AB  - Data on the strain and stress status of the pipe in the circumferential direction are required for various pipe manufacturing procedures (e.g., in the oil business, the process of manufacturing seamless pipes with a conical shaft). The aim of this study is to develop a procedure to determine the strain and stress behavior of Pipe Ring Tensile Specimens (PRTSs) in the hoop direction, as there are a lack of official standardized methods for testing PRTS. This paper discusses the application of the Digital Image Correlation method for testing plastic PRTSs. PRTSs are tested using a specially designed steel tool with two D blocks. A 3D-printed PRTS is placed over two D-shaped mandrels, which are fixed on a tensile tool and tensile testing machine. The strain evolution in the gage length of the specimens is captured using the three-dimensional Digital Image Correlation (3D DIC) method. To check the geometry of the cross-section of the PRTS after fracture, all the specimens are 3D scanned. For the study, six groups of PRTS are analyzed, consisting of three filling percentages (60, 90, and 100%) and two geometry types (Single and Double PRTS). The results show that the type and percentage of filling, as well as the method of printing, affect the material behavior. However, the approach with the DIC system, 3D printer, and scanner shows that they are effective instruments for mapping complete strain fields in PRTS, and thus are effective in characterizing the mechanical properties of pipes.
PB  - MDPI
T2  - Metals
T1  - Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens
SP  - 1560
VL  - 12
DO  - 10.3390/ met12101560
ER  - 

@article{
author = "Travica, Milan and Mitrović, Nenad and Petrović, Aleksandar and Trajković, Isaak and Milošević, Miloš and Sedmak, Aleksandar and Berto, Filippo",
year = "2022",
abstract = "Data on the strain and stress status of the pipe in the circumferential direction are required for various pipe manufacturing procedures (e.g., in the oil business, the process of manufacturing seamless pipes with a conical shaft). The aim of this study is to develop a procedure to determine the strain and stress behavior of Pipe Ring Tensile Specimens (PRTSs) in the hoop direction, as there are a lack of official standardized methods for testing PRTS. This paper discusses the application of the Digital Image Correlation method for testing plastic PRTSs. PRTSs are tested using a specially designed steel tool with two D blocks. A 3D-printed PRTS is placed over two D-shaped mandrels, which are fixed on a tensile tool and tensile testing machine. The strain evolution in the gage length of the specimens is captured using the three-dimensional Digital Image Correlation (3D DIC) method. To check the geometry of the cross-section of the PRTS after fracture, all the specimens are 3D scanned. For the study, six groups of PRTS are analyzed, consisting of three filling percentages (60, 90, and 100%) and two geometry types (Single and Double PRTS). The results show that the type and percentage of filling, as well as the method of printing, affect the material behavior. However, the approach with the DIC system, 3D printer, and scanner shows that they are effective instruments for mapping complete strain fields in PRTS, and thus are effective in characterizing the mechanical properties of pipes.",
publisher = "MDPI",
journal = "Metals",
title = "Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens",
pages = "1560",
volume = "12",
doi = "10.3390/ met12101560"
}

Travica, M., Mitrović, N., Petrović, A., Trajković, I., Milošević, M., Sedmak, A.,& Berto, F.. (2022). Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens. in Metals
MDPI., 12, 1560.
https://doi.org/10.3390/ met12101560

Travica M, Mitrović N, Petrović A, Trajković I, Milošević M, Sedmak A, Berto F. Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens. in Metals. 2022;12:1560.
doi:10.3390/ met12101560 .

Travica, Milan, Mitrović, Nenad, Petrović, Aleksandar, Trajković, Isaak, Milošević, Miloš, Sedmak, Aleksandar, Berto, Filippo, "Experimental Evaluation of Hoop Stress–Strain State of 3D-Printed Pipe Ring Tensile Specimens" in Metals, 12 (2022):1560,
https://doi.org/10.3390/ met12101560 . .

TY  - GEN
AU  - Jaćimović, Branislav M.
AU  - Genić, Srbislav
AU  - Stamenić, Mirjana
AU  - Aranđelović, Ivan
AU  - Petrović, Aleksandar
AU  - Mitrović, Nenad
AU  - Milovančević, Uroš
AU  - Ivošević, Miloš
AU  - Otović, Milena
AU  - Petrović, Andrija
AU  - Rajić, Radenko S.
AU  - Tanasić, Nikola
AU  - Mihailović, Miloš
AU  - Marković, Saša
AU  - Bogdanović, Predrag
AU  - Simonović, Tomislav
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6065
PB  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Metodi i primeri eksperimentalnog rada u procesnom inženjerstvu i termotehnici
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6065
ER  - 

@misc{
author = "Jaćimović, Branislav M. and Genić, Srbislav and Stamenić, Mirjana and Aranđelović, Ivan and Petrović, Aleksandar and Mitrović, Nenad and Milovančević, Uroš and Ivošević, Miloš and Otović, Milena and Petrović, Andrija and Rajić, Radenko S. and Tanasić, Nikola and Mihailović, Miloš and Marković, Saša and Bogdanović, Predrag and Simonović, Tomislav",
year = "2022",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Metodi i primeri eksperimentalnog rada u procesnom inženjerstvu i termotehnici",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6065"
}

Jaćimović, B. M., Genić, S., Stamenić, M., Aranđelović, I., Petrović, A., Mitrović, N., Milovančević, U., Ivošević, M., Otović, M., Petrović, A., Rajić, R. S., Tanasić, N., Mihailović, M., Marković, S., Bogdanović, P.,& Simonović, T.. (2022). Metodi i primeri eksperimentalnog rada u procesnom inženjerstvu i termotehnici. 
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_machinery_6065

Jaćimović BM, Genić S, Stamenić M, Aranđelović I, Petrović A, Mitrović N, Milovančević U, Ivošević M, Otović M, Petrović A, Rajić RS, Tanasić N, Mihailović M, Marković S, Bogdanović P, Simonović T. Metodi i primeri eksperimentalnog rada u procesnom inženjerstvu i termotehnici. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_6065 .

Jaćimović, Branislav M., Genić, Srbislav, Stamenić, Mirjana, Aranđelović, Ivan, Petrović, Aleksandar, Mitrović, Nenad, Milovančević, Uroš, Ivošević, Miloš, Otović, Milena, Petrović, Andrija, Rajić, Radenko S., Tanasić, Nikola, Mihailović, Miloš, Marković, Saša, Bogdanović, Predrag, Simonović, Tomislav, "Metodi i primeri eksperimentalnog rada u procesnom inženjerstvu i termotehnici" (2022),
https://hdl.handle.net/21.15107/rcub_machinery_6065 .

TY  - CONF
AU  - Travica, Milan
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7703
AB  - Procedura ispitivanja epruveta oblika prstena dobijenih iz cevi nije standardizovana i potpuno definisana. Cilj ove studije je razvijanje procedure za određivanje polja pomeranja i deformacija kod epruveta oblika prstena. Predložena je geometrija epruvete sa jednostrukom konfiguracijom standardne epruvete. Za potrebe ove studije, epruvete se proizvode tehnologijom 3D štampe sa standardnim polilaktičnim polimerom (PLA). Jedan od glavnih elemenata eksperimentalne postavke za ispitivanje epruveta oblika prstena je specijalno razvijeni alat sa dva D bloka. Alat se
postavlja na kidalicu i prenosi opterećenje na unutrašnju površinu uzorka simulirajući unutrašnji
pritisak. Metoda korelacije digitalnih slika koristi se za analizu polja pomeranja i deformacija na
spoljašnjoj površini uzorka. Eksperimenti se izvode pri brzinama od 1 mm/min na kidalici Shimadzu
AGS-X. Rezultati ispitivanja pokazuju da su kod predloženih epruveta lomovi nastali u zonama
snimanja, tj. u definisanim suženjima i ukazuju na mogućnost daljeg poboljšanja postupka ispitivanja i geometrije epruveta.
PB  - Akademija tehničkih strukovnih studija Beograd
C3  - Politehnika 2021
T1  - EKSPERIMENTALNA POSTAVKA ZA ISPITIVANJE EPRUVETA OBLIKA PRSTENA
EP  - 576
SP  - 571
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7703
ER  - 

@conference{
author = "Travica, Milan and Mitrović, Nenad and Petrović, Aleksandar",
year = "2021",
abstract = "Procedura ispitivanja epruveta oblika prstena dobijenih iz cevi nije standardizovana i potpuno definisana. Cilj ove studije je razvijanje procedure za određivanje polja pomeranja i deformacija kod epruveta oblika prstena. Predložena je geometrija epruvete sa jednostrukom konfiguracijom standardne epruvete. Za potrebe ove studije, epruvete se proizvode tehnologijom 3D štampe sa standardnim polilaktičnim polimerom (PLA). Jedan od glavnih elemenata eksperimentalne postavke za ispitivanje epruveta oblika prstena je specijalno razvijeni alat sa dva D bloka. Alat se
postavlja na kidalicu i prenosi opterećenje na unutrašnju površinu uzorka simulirajući unutrašnji
pritisak. Metoda korelacije digitalnih slika koristi se za analizu polja pomeranja i deformacija na
spoljašnjoj površini uzorka. Eksperimenti se izvode pri brzinama od 1 mm/min na kidalici Shimadzu
AGS-X. Rezultati ispitivanja pokazuju da su kod predloženih epruveta lomovi nastali u zonama
snimanja, tj. u definisanim suženjima i ukazuju na mogućnost daljeg poboljšanja postupka ispitivanja i geometrije epruveta.",
publisher = "Akademija tehničkih strukovnih studija Beograd",
journal = "Politehnika 2021",
title = "EKSPERIMENTALNA POSTAVKA ZA ISPITIVANJE EPRUVETA OBLIKA PRSTENA",
pages = "576-571",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7703"
}

Travica, M., Mitrović, N.,& Petrović, A.. (2021). EKSPERIMENTALNA POSTAVKA ZA ISPITIVANJE EPRUVETA OBLIKA PRSTENA. in Politehnika 2021
Akademija tehničkih strukovnih studija Beograd., 571-576.
https://hdl.handle.net/21.15107/rcub_machinery_7703

Travica M, Mitrović N, Petrović A. EKSPERIMENTALNA POSTAVKA ZA ISPITIVANJE EPRUVETA OBLIKA PRSTENA. in Politehnika 2021. 2021;:571-576.
https://hdl.handle.net/21.15107/rcub_machinery_7703 .

Travica, Milan, Mitrović, Nenad, Petrović, Aleksandar, "EKSPERIMENTALNA POSTAVKA ZA ISPITIVANJE EPRUVETA OBLIKA PRSTENA" in Politehnika 2021 (2021):571-576,
https://hdl.handle.net/21.15107/rcub_machinery_7703 .

TY  - CONF
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
AU  - Travica, Milan
AU  - Milošević, Miloš
AU  - Čudić, Bojan
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7693
AB  - Structural Health Monitoring (SHM) technologies are an important part of the system for detection and characterization of any type of damages of engineering structures. Various technologies have been applied in different engineering sectors in last several decades – strain gauges, acoustic emission, fibre optic sensors, etc. One of the methods that has a high potential for application in sector of pressure vessels, especially on complex geometrical parts, is 3D Digital Image Correlation (3D-DIC) method. 3D-DIC method enables full-field displacement and strain measurement. The aim of this paper was to investigate the possibilities of application
of the Aramis system (GOM, Germany) based on 3D-DIC method on several cases typical for pressure vessels and its influence on structural health – crack detection and crack propagation monitoring and stress concentration areas of complex structures in the vessel-nozzle joint (sphere to cylinder and cylinder to cylinder connections). Aramis software was used to measuring von Mises strain fields and displacements. The results showed that 3D-DIC method is suitable for structural health monitoring of pressure vessels during their lifespan.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020
T1  - 3D-DIC METHOD IN STRUCTURAL HEALTH MONITORING OF PRESSURE VESSELS
SP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7693
ER  - 

@conference{
author = "Mitrović, Nenad and Petrović, Aleksandar and Travica, Milan and Milošević, Miloš and Čudić, Bojan",
year = "2020",
abstract = "Structural Health Monitoring (SHM) technologies are an important part of the system for detection and characterization of any type of damages of engineering structures. Various technologies have been applied in different engineering sectors in last several decades – strain gauges, acoustic emission, fibre optic sensors, etc. One of the methods that has a high potential for application in sector of pressure vessels, especially on complex geometrical parts, is 3D Digital Image Correlation (3D-DIC) method. 3D-DIC method enables full-field displacement and strain measurement. The aim of this paper was to investigate the possibilities of application
of the Aramis system (GOM, Germany) based on 3D-DIC method on several cases typical for pressure vessels and its influence on structural health – crack detection and crack propagation monitoring and stress concentration areas of complex structures in the vessel-nozzle joint (sphere to cylinder and cylinder to cylinder connections). Aramis software was used to measuring von Mises strain fields and displacements. The results showed that 3D-DIC method is suitable for structural health monitoring of pressure vessels during their lifespan.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020",
title = "3D-DIC METHOD IN STRUCTURAL HEALTH MONITORING OF PRESSURE VESSELS",
pages = "9",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7693"
}

Mitrović, N., Petrović, A., Travica, M., Milošević, M.,& Čudić, B.. (2020). 3D-DIC METHOD IN STRUCTURAL HEALTH MONITORING OF PRESSURE VESSELS. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020
Innovation Center of Faculty of Mechanical Engineering., 9.
https://hdl.handle.net/21.15107/rcub_machinery_7693

Mitrović N, Petrović A, Travica M, Milošević M, Čudić B. 3D-DIC METHOD IN STRUCTURAL HEALTH MONITORING OF PRESSURE VESSELS. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020. 2020;:9.
https://hdl.handle.net/21.15107/rcub_machinery_7693 .

Mitrović, Nenad, Petrović, Aleksandar, Travica, Milan, Milošević, Miloš, Čudić, Bojan, "3D-DIC METHOD IN STRUCTURAL HEALTH MONITORING OF PRESSURE VESSELS" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020 (2020):9,
https://hdl.handle.net/21.15107/rcub_machinery_7693 .

TY  - CONF
AU  - Travica, Milan
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7694
AB  - Pipe material propertise test is very important for quality investigate of pipe construction. Many studies that have been conducted are based on use ring shape specimens. Previous research has used weaker pipe materials and larger diameters, which facilitates tool making. This state of the art has led to the development of a new approach to testing pipe rings of larger thicknesses and smaller diameters (e = 6.32mm, DN32) as well as defining a better test procedure. Using DIC cameras (Digital Image Corelation), stress state analysis was performed and deformations on the outer surface and side of the ring (pipe wall) were analyzed. The outer surface of the ring and the thinning of the test tube in the axial direction as well as the elongation of the measuring part of the test tube were recorded with two cameras. With the third camera, the lateral side of the specimen was recorded so that the change in the thickness of the ring as well as the occurrence of bending in the radial plane during the test were analyzed. The test results are based on data on deformation, thickness reduction in the axial and radial directions. The test results enable the assessment of the condition of the pipe material and the assessment of its service life. The use of ring-shaped test tubes facilitates production and provides better results compared to the flattening method.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020
T1  - PIPE RING SPECIMEN TEST PROCEDURE USING DIC METHOD WITH THREE CAMERAS
SP  - 13
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7694
ER  - 

@conference{
author = "Travica, Milan and Mitrović, Nenad and Petrović, Aleksandar",
year = "2020",
abstract = "Pipe material propertise test is very important for quality investigate of pipe construction. Many studies that have been conducted are based on use ring shape specimens. Previous research has used weaker pipe materials and larger diameters, which facilitates tool making. This state of the art has led to the development of a new approach to testing pipe rings of larger thicknesses and smaller diameters (e = 6.32mm, DN32) as well as defining a better test procedure. Using DIC cameras (Digital Image Corelation), stress state analysis was performed and deformations on the outer surface and side of the ring (pipe wall) were analyzed. The outer surface of the ring and the thinning of the test tube in the axial direction as well as the elongation of the measuring part of the test tube were recorded with two cameras. With the third camera, the lateral side of the specimen was recorded so that the change in the thickness of the ring as well as the occurrence of bending in the radial plane during the test were analyzed. The test results are based on data on deformation, thickness reduction in the axial and radial directions. The test results enable the assessment of the condition of the pipe material and the assessment of its service life. The use of ring-shaped test tubes facilitates production and provides better results compared to the flattening method.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020",
title = "PIPE RING SPECIMEN TEST PROCEDURE USING DIC METHOD WITH THREE CAMERAS",
pages = "13",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7694"
}

Travica, M., Mitrović, N.,& Petrović, A.. (2020). PIPE RING SPECIMEN TEST PROCEDURE USING DIC METHOD WITH THREE CAMERAS. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020
Innovation Center of Faculty of Mechanical Engineering., 13.
https://hdl.handle.net/21.15107/rcub_machinery_7694

Travica M, Mitrović N, Petrović A. PIPE RING SPECIMEN TEST PROCEDURE USING DIC METHOD WITH THREE CAMERAS. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020. 2020;:13.
https://hdl.handle.net/21.15107/rcub_machinery_7694 .

Travica, Milan, Mitrović, Nenad, Petrović, Aleksandar, "PIPE RING SPECIMEN TEST PROCEDURE USING DIC METHOD WITH THREE CAMERAS" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2020 (2020):13,
https://hdl.handle.net/21.15107/rcub_machinery_7694 .

TY  - GEN
AU  - Petrović, Andrija
AU  - Filipović, Jovan
AU  - Petrović, Aleksandar
AU  - Bakić, Gordana
AU  - Veljić, Darko
AU  - Bugarić, Uglješa
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5842
AB  - Ејекторска пумпа за хидротранспорт високо абразивне шљаке и пепела
првенствено је намењена за избацивање шљаке и пепела из котлова, као примарни систем
за транспорт или као секундарни систем за транспорт (уколико већ постоје тзв Д пумпе).
Овакав тип ејекторске пумпе може се врло лако димензионо прилагодити било ком типу
котла и било каквој врсти абразивних материјала (сачма, песак итд.)
T2  - Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020
T1  - Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5842
ER  - 

@misc{
author = "Petrović, Andrija and Filipović, Jovan and Petrović, Aleksandar and Bakić, Gordana and Veljić, Darko and Bugarić, Uglješa",
year = "2020",
abstract = "Ејекторска пумпа за хидротранспорт високо абразивне шљаке и пепела
првенствено је намењена за избацивање шљаке и пепела из котлова, као примарни систем
за транспорт или као секундарни систем за транспорт (уколико већ постоје тзв Д пумпе).
Овакав тип ејекторске пумпе може се врло лако димензионо прилагодити било ком типу
котла и било каквој врсти абразивних материјала (сачма, песак итд.)",
journal = "Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020",
title = "Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5842"
}

Petrović, A., Filipović, J., Petrović, A., Bakić, G., Veljić, D.,& Bugarić, U.. (2020). Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела. in Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020.
https://hdl.handle.net/21.15107/rcub_machinery_5842

Petrović A, Filipović J, Petrović A, Bakić G, Veljić D, Bugarić U. Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела. in Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020. 2020;.
https://hdl.handle.net/21.15107/rcub_machinery_5842 .

Petrović, Andrija, Filipović, Jovan, Petrović, Aleksandar, Bakić, Gordana, Veljić, Darko, Bugarić, Uglješa, "Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела" in Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020 (2020),
https://hdl.handle.net/21.15107/rcub_machinery_5842 .

TY  - JOUR
AU  - Popović, Dejana
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
AU  - Milošević, Miloš
AU  - Momčilović, Nikola
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3279
AB  - As pressure equipment is most commonly used in various industrial fields, making manufacturing processes eco-friendlier (e.g., mass reduction of the final product, material and energy savings, etc.) and transitioning to sustain-able production by developing eco-innovative products will have a positive effect on the environment. The aim of this paper is to analyze globe valve housing exposed to internal pressure using full-field experimental 3D digital image correlation (3D-DIC) method and numerical strain and stress data in order to propose improvements for more sustainable development, with respect to practical engineering application of EN standards. The highest von Mises strain values around 0.03% were measured on the point of highest geometrical discontinuity, sphere/cylinder intersection. Stresses of the examined globe valve using numerical and theoretical approach are significantly below material yield limit and allowable stress for internal pressure values of 30 bar, that is significantly higher than nominal operating pressure of 6 bar, proving that structure is over-dimensioned and can be optimized. New experimental procedure development and application in full-field strain analysis contributes to increased valve housing reliability, mass reduction and material and energy savings during manufacturing which directly affects its eco- friendliness, lowers manufacturing price and increases market competitiveness.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Sustainable development of pressure equipment using 3d digital image correlation method
EP  - 293
IS  - 3
SP  - 287
VL  - 26
DO  - 10.2298/CICEQ190124006P
ER  - 

@article{
author = "Popović, Dejana and Mitrović, Nenad and Petrović, Aleksandar and Milošević, Miloš and Momčilović, Nikola",
year = "2020",
abstract = "As pressure equipment is most commonly used in various industrial fields, making manufacturing processes eco-friendlier (e.g., mass reduction of the final product, material and energy savings, etc.) and transitioning to sustain-able production by developing eco-innovative products will have a positive effect on the environment. The aim of this paper is to analyze globe valve housing exposed to internal pressure using full-field experimental 3D digital image correlation (3D-DIC) method and numerical strain and stress data in order to propose improvements for more sustainable development, with respect to practical engineering application of EN standards. The highest von Mises strain values around 0.03% were measured on the point of highest geometrical discontinuity, sphere/cylinder intersection. Stresses of the examined globe valve using numerical and theoretical approach are significantly below material yield limit and allowable stress for internal pressure values of 30 bar, that is significantly higher than nominal operating pressure of 6 bar, proving that structure is over-dimensioned and can be optimized. New experimental procedure development and application in full-field strain analysis contributes to increased valve housing reliability, mass reduction and material and energy savings during manufacturing which directly affects its eco- friendliness, lowers manufacturing price and increases market competitiveness.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Sustainable development of pressure equipment using 3d digital image correlation method",
pages = "293-287",
number = "3",
volume = "26",
doi = "10.2298/CICEQ190124006P"
}

Popović, D., Mitrović, N., Petrović, A., Milošević, M.,& Momčilović, N.. (2020). Sustainable development of pressure equipment using 3d digital image correlation method. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 26(3), 287-293.
https://doi.org/10.2298/CICEQ190124006P

Popović D, Mitrović N, Petrović A, Milošević M, Momčilović N. Sustainable development of pressure equipment using 3d digital image correlation method. in Chemical Industry & Chemical Engineering Quarterly. 2020;26(3):287-293.
doi:10.2298/CICEQ190124006P .

Popović, Dejana, Mitrović, Nenad, Petrović, Aleksandar, Milošević, Miloš, Momčilović, Nikola, "Sustainable development of pressure equipment using 3d digital image correlation method" in Chemical Industry & Chemical Engineering Quarterly, 26, no. 3 (2020):287-293,
https://doi.org/10.2298/CICEQ190124006P . .

TY  - JOUR
AU  - Pavkov, Vladimir
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Petrović, Aleksandar
AU  - Mitrović, Nenad
AU  - Mišković, Žarko
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3286
AB  - One of the important tasks of evaluating the integrity of mechanical process elements and structures is to determine the local mechanical properties. In this paper, experimental and numerical analyses of the mechanical behavior of an output inter-heater tube, made of 12H1MF heat-resistant steel, was performed after 200,000 h of exploitation. During exploitation, the tube was exposed to various mechanisms of damage including gas corrosion. The tube was cut from a pipe system during reparations of a thermal power plant, and then cold-deformed by bending to obtain a U-bend tube, which was then used in the experiment. For this purpose, a specimen holder made of structural steel S235 was specifically designed to test such a sample. The U-bend tube was then exposed to the external compressive load during the experiment. Experimental research was based on the application of the 3D digital image correlation (DIC), while a finite element method (FEM) was applied in numerical simulation performed by using the Abaqus software package. The 3D DIC is an optical and contactless experimental method that allows measurements of displacement fields and deformations of geometrically complex structures. The Aramis system was used for the experimental analysis as well as for verification of the numerical model. During the experiment, the von Mises strain field was measured at the top of the U-bend tube, in the tightening zone, as it represents a critical place for crack initiation and propagation during the work of an inter-heater. Based on the obtained results and a comparative analysis of experimental and numerical values of the von Mises strain field at the U-bend tube, deviation of the model predictions of about 18 % was determined. The FEM predicted smaller values of the von Mises strain field compared to the DIC method. This is the result of an incomplete geometry applied in the model due to deformation that occurred in the bend zone of the U-bend tube, loss of material and the tube surface damage due to the influence of gas corrosion during 200,000 h of exploitation. Experimental analysis has confirmed that the U-bend tube, after 200,000 h of exploitation, can remain in service even if it is damaged due to the effect of gas corrosion.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska Industrija
T1  - Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation
EP  - 63
IS  - 1
SP  - 51
VL  - 74
DO  - 10.2298/HEMIND190905005P
ER  - 

@article{
author = "Pavkov, Vladimir and Bakić, Gordana and Maksimović, Vesna and Petrović, Aleksandar and Mitrović, Nenad and Mišković, Žarko",
year = "2020",
abstract = "One of the important tasks of evaluating the integrity of mechanical process elements and structures is to determine the local mechanical properties. In this paper, experimental and numerical analyses of the mechanical behavior of an output inter-heater tube, made of 12H1MF heat-resistant steel, was performed after 200,000 h of exploitation. During exploitation, the tube was exposed to various mechanisms of damage including gas corrosion. The tube was cut from a pipe system during reparations of a thermal power plant, and then cold-deformed by bending to obtain a U-bend tube, which was then used in the experiment. For this purpose, a specimen holder made of structural steel S235 was specifically designed to test such a sample. The U-bend tube was then exposed to the external compressive load during the experiment. Experimental research was based on the application of the 3D digital image correlation (DIC), while a finite element method (FEM) was applied in numerical simulation performed by using the Abaqus software package. The 3D DIC is an optical and contactless experimental method that allows measurements of displacement fields and deformations of geometrically complex structures. The Aramis system was used for the experimental analysis as well as for verification of the numerical model. During the experiment, the von Mises strain field was measured at the top of the U-bend tube, in the tightening zone, as it represents a critical place for crack initiation and propagation during the work of an inter-heater. Based on the obtained results and a comparative analysis of experimental and numerical values of the von Mises strain field at the U-bend tube, deviation of the model predictions of about 18 % was determined. The FEM predicted smaller values of the von Mises strain field compared to the DIC method. This is the result of an incomplete geometry applied in the model due to deformation that occurred in the bend zone of the U-bend tube, loss of material and the tube surface damage due to the influence of gas corrosion during 200,000 h of exploitation. Experimental analysis has confirmed that the U-bend tube, after 200,000 h of exploitation, can remain in service even if it is damaged due to the effect of gas corrosion.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska Industrija",
title = "Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation",
pages = "63-51",
number = "1",
volume = "74",
doi = "10.2298/HEMIND190905005P"
}

Pavkov, V., Bakić, G., Maksimović, V., Petrović, A., Mitrović, N.,& Mišković, Ž.. (2020). Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation. in Hemijska Industrija
Savez hemijskih inženjera, Beograd., 74(1), 51-63.
https://doi.org/10.2298/HEMIND190905005P

Pavkov V, Bakić G, Maksimović V, Petrović A, Mitrović N, Mišković Ž. Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation. in Hemijska Industrija. 2020;74(1):51-63.
doi:10.2298/HEMIND190905005P .

Pavkov, Vladimir, Bakić, Gordana, Maksimović, Vesna, Petrović, Aleksandar, Mitrović, Nenad, Mišković, Žarko, "Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation" in Hemijska Industrija, 74, no. 1 (2020):51-63,
https://doi.org/10.2298/HEMIND190905005P . .

TY  - CONF
AU  - Travica, Milan
AU  - Mitrović, Nenad
AU  - Batinić, Radivoje
AU  - Petrović, Aleksandar
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7691
AB  - Heat losses in buildings have high influence on construction materials choice, size and quality of windows, doors or glass roofs and the construction processes. For a 10 floor-building, heat losses through windows are almost half of the losses of the whole building. With that in mind, improving the thermal protection of windows and other glass surfaces can increase energy savings. One example for thermal protection increase is using blinds on windows. Influence of the size and position of the windows blinds on heat losses is analysed in this paper. A mathematical model was developed and experimental study was conducted to obtain the values of thermal losses in the function of the position and size of the blind openings. The obtained results showed the ratio of the amount of heat for the window with and without a blind. According to the measured values, the
thermal insulation is increased for about 18 % on the window with blinds. The use of the blinds is profitable and the mentioned savings can contribute to the lower energy consumption in house heating and cooling.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019
T1  - INFLUENCE OF THE SIZE AND POSITION OF WINDOWS BLINDS ON HEAT LOSSES
SP  - 5
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7691
ER  - 

@conference{
author = "Travica, Milan and Mitrović, Nenad and Batinić, Radivoje and Petrović, Aleksandar",
year = "2019",
abstract = "Heat losses in buildings have high influence on construction materials choice, size and quality of windows, doors or glass roofs and the construction processes. For a 10 floor-building, heat losses through windows are almost half of the losses of the whole building. With that in mind, improving the thermal protection of windows and other glass surfaces can increase energy savings. One example for thermal protection increase is using blinds on windows. Influence of the size and position of the windows blinds on heat losses is analysed in this paper. A mathematical model was developed and experimental study was conducted to obtain the values of thermal losses in the function of the position and size of the blind openings. The obtained results showed the ratio of the amount of heat for the window with and without a blind. According to the measured values, the
thermal insulation is increased for about 18 % on the window with blinds. The use of the blinds is profitable and the mentioned savings can contribute to the lower energy consumption in house heating and cooling.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019",
title = "INFLUENCE OF THE SIZE AND POSITION OF WINDOWS BLINDS ON HEAT LOSSES",
pages = "5",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7691"
}

Travica, M., Mitrović, N., Batinić, R.,& Petrović, A.. (2019). INFLUENCE OF THE SIZE AND POSITION OF WINDOWS BLINDS ON HEAT LOSSES. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019
Innovation Center of Faculty of Mechanical Engineering., 5.
https://hdl.handle.net/21.15107/rcub_machinery_7691

Travica M, Mitrović N, Batinić R, Petrović A. INFLUENCE OF THE SIZE AND POSITION OF WINDOWS BLINDS ON HEAT LOSSES. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019. 2019;:5.
https://hdl.handle.net/21.15107/rcub_machinery_7691 .

Travica, Milan, Mitrović, Nenad, Batinić, Radivoje, Petrović, Aleksandar, "INFLUENCE OF THE SIZE AND POSITION OF WINDOWS BLINDS ON HEAT LOSSES" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2019 (2019):5,
https://hdl.handle.net/21.15107/rcub_machinery_7691 .

TY  - PAT
AU  - Travica, Milan
AU  - Mitrović, Nenad
AU  - Mladenović, Goran
AU  - Milovanović, Aleksa
AU  - Milošević, Nenad
AU  - Milošević, Miloš
AU  - Petrović, Aleksandar
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4281
AB  - The tool is used to test the radial tensile characteristics of the pipeline material from which the specimen are made. The tool enables testing of steel ring specimen used in various industries (eg thermal power plants).
T1  - Pipe Ring Tensile Testing Tool (Alat za ispitivanje epruveta oblika prstena)
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4281
ER  - 

@misc{
author = "Travica, Milan and Mitrović, Nenad and Mladenović, Goran and Milovanović, Aleksa and Milošević, Nenad and Milošević, Miloš and Petrović, Aleksandar",
year = "2019",
abstract = "The tool is used to test the radial tensile characteristics of the pipeline material from which the specimen are made. The tool enables testing of steel ring specimen used in various industries (eg thermal power plants).",
title = "Pipe Ring Tensile Testing Tool (Alat za ispitivanje epruveta oblika prstena)",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4281"
}

Travica, M., Mitrović, N., Mladenović, G., Milovanović, A., Milošević, N., Milošević, M.,& Petrović, A.. (2019). Pipe Ring Tensile Testing Tool (Alat za ispitivanje epruveta oblika prstena). .
https://hdl.handle.net/21.15107/rcub_machinery_4281

Travica M, Mitrović N, Mladenović G, Milovanović A, Milošević N, Milošević M, Petrović A. Pipe Ring Tensile Testing Tool (Alat za ispitivanje epruveta oblika prstena). 2019;.
https://hdl.handle.net/21.15107/rcub_machinery_4281 .

Travica, Milan, Mitrović, Nenad, Mladenović, Goran, Milovanović, Aleksa, Milošević, Nenad, Milošević, Miloš, Petrović, Aleksandar, "Pipe Ring Tensile Testing Tool (Alat za ispitivanje epruveta oblika prstena)" (2019),
https://hdl.handle.net/21.15107/rcub_machinery_4281 .

TY  - JOUR
AU  - Petrović, Andrija
AU  - Delibasić, Boris
AU  - Filipović, Jovan
AU  - Petrović, Aleksandar
AU  - Lomović, Miloš
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2750
AB  - In this paper, a multi-objective optimization of geothermal water desalination plant with ejector refrigeration system is proposed. The multi-objective antlion optimization algorithm is used. Six different optimization scenarios were performed with economic (total investment cost and profit) and thermodynamic (exergy destruction) objectives for refrigerants R11, R114 and R717. Multi-criteria decision making with integrated AHP and PROMETHEE II approach is executed for evaluating the most suitable design project and refrigerant. Besides economic and thermodynamic criteria, three additional environmental criteria were used: ozone depletion potential, global warming potential and toxicity. The sensitivity analysis showed that water desalination plant with R114 refrigerant and coefficient of performance 0.507 is optimal for a wide range of criteria weights. A similar result of the optimal design point is obtained in scenarios where only economic objective functions were considered during the optimization procedure. Furthermore, it is proved that R114 Pareto front is more optimal in comparison with other refrigerants.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Energy Conversion and Management
T1  - Thermoeconomic and environmental optimization of geothermal water desalination plant with ejector refrigeration system
EP  - 77
SP  - 65
VL  - 178
DO  - 10.1016/j.enconman.2018.10.035
ER  - 

@article{
author = "Petrović, Andrija and Delibasić, Boris and Filipović, Jovan and Petrović, Aleksandar and Lomović, Miloš",
year = "2018",
abstract = "In this paper, a multi-objective optimization of geothermal water desalination plant with ejector refrigeration system is proposed. The multi-objective antlion optimization algorithm is used. Six different optimization scenarios were performed with economic (total investment cost and profit) and thermodynamic (exergy destruction) objectives for refrigerants R11, R114 and R717. Multi-criteria decision making with integrated AHP and PROMETHEE II approach is executed for evaluating the most suitable design project and refrigerant. Besides economic and thermodynamic criteria, three additional environmental criteria were used: ozone depletion potential, global warming potential and toxicity. The sensitivity analysis showed that water desalination plant with R114 refrigerant and coefficient of performance 0.507 is optimal for a wide range of criteria weights. A similar result of the optimal design point is obtained in scenarios where only economic objective functions were considered during the optimization procedure. Furthermore, it is proved that R114 Pareto front is more optimal in comparison with other refrigerants.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Energy Conversion and Management",
title = "Thermoeconomic and environmental optimization of geothermal water desalination plant with ejector refrigeration system",
pages = "77-65",
volume = "178",
doi = "10.1016/j.enconman.2018.10.035"
}

Petrović, A., Delibasić, B., Filipović, J., Petrović, A.,& Lomović, M.. (2018). Thermoeconomic and environmental optimization of geothermal water desalination plant with ejector refrigeration system. in Energy Conversion and Management
Pergamon-Elsevier Science Ltd, Oxford., 178, 65-77.
https://doi.org/10.1016/j.enconman.2018.10.035

Petrović A, Delibasić B, Filipović J, Petrović A, Lomović M. Thermoeconomic and environmental optimization of geothermal water desalination plant with ejector refrigeration system. in Energy Conversion and Management. 2018;178:65-77.
doi:10.1016/j.enconman.2018.10.035 .

Petrović, Andrija, Delibasić, Boris, Filipović, Jovan, Petrović, Aleksandar, Lomović, Miloš, "Thermoeconomic and environmental optimization of geothermal water desalination plant with ejector refrigeration system" in Energy Conversion and Management, 178 (2018):65-77,
https://doi.org/10.1016/j.enconman.2018.10.035 . .

TY  - JOUR
AU  - Balać, Martina
AU  - Grbović, Aleksandar
AU  - Petrović, Aleksandar
AU  - Popović, Vladimir
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2919
AB  - To ensure reliability of pressure vessels during service it is necessary to (1) know properties of materials used in their design and (2) evaluate vessels' behaviour under different working conditions with satisfying accuracy. Due to various technical and/or technological requirements, nozzles are usually welded on vessel's shell producing geometrical discontinuities that reduce the safety factor. To evaluate their influence, vessels with two different nozzles were experimentally studied and critical areas for crack initiation have been identified by 3D Digital Image Correlation (DIC) method. After that, the numerical analysis of equivalent 3D finite element model was performed and obtained results were compared with experimental values. In the most critical area, next to the one of the nozzles, crack was initiated and then growth of the damage was simulated using extended finite element method (XFEM). In this paper evaluation of stress intensity factors (SIFs) along crack path is presented, as well as the most probable direction of the crack propagation on the shell. Based on SIFs values, critical length of the crack and number of pressure cycles to the final failure were estimated.
PB  - Polish Maintenance Soc, Lublin
T2  - Eksploatacja I Niezawodnosc-Maintenance and Reliability
T1  - Fem analysis of pressure vessel with an investigation of crack growth on cylindrical surface
EP  - 386
IS  - 3
SP  - 378
VL  - 20
DO  - 10.17531/ein.2018.3.5
ER  - 

@article{
author = "Balać, Martina and Grbović, Aleksandar and Petrović, Aleksandar and Popović, Vladimir",
year = "2018",
abstract = "To ensure reliability of pressure vessels during service it is necessary to (1) know properties of materials used in their design and (2) evaluate vessels' behaviour under different working conditions with satisfying accuracy. Due to various technical and/or technological requirements, nozzles are usually welded on vessel's shell producing geometrical discontinuities that reduce the safety factor. To evaluate their influence, vessels with two different nozzles were experimentally studied and critical areas for crack initiation have been identified by 3D Digital Image Correlation (DIC) method. After that, the numerical analysis of equivalent 3D finite element model was performed and obtained results were compared with experimental values. In the most critical area, next to the one of the nozzles, crack was initiated and then growth of the damage was simulated using extended finite element method (XFEM). In this paper evaluation of stress intensity factors (SIFs) along crack path is presented, as well as the most probable direction of the crack propagation on the shell. Based on SIFs values, critical length of the crack and number of pressure cycles to the final failure were estimated.",
publisher = "Polish Maintenance Soc, Lublin",
journal = "Eksploatacja I Niezawodnosc-Maintenance and Reliability",
title = "Fem analysis of pressure vessel with an investigation of crack growth on cylindrical surface",
pages = "386-378",
number = "3",
volume = "20",
doi = "10.17531/ein.2018.3.5"
}

Balać, M., Grbović, A., Petrović, A.,& Popović, V.. (2018). Fem analysis of pressure vessel with an investigation of crack growth on cylindrical surface. in Eksploatacja I Niezawodnosc-Maintenance and Reliability
Polish Maintenance Soc, Lublin., 20(3), 378-386.
https://doi.org/10.17531/ein.2018.3.5

Balać M, Grbović A, Petrović A, Popović V. Fem analysis of pressure vessel with an investigation of crack growth on cylindrical surface. in Eksploatacja I Niezawodnosc-Maintenance and Reliability. 2018;20(3):378-386.
doi:10.17531/ein.2018.3.5 .

Balać, Martina, Grbović, Aleksandar, Petrović, Aleksandar, Popović, Vladimir, "Fem analysis of pressure vessel with an investigation of crack growth on cylindrical surface" in Eksploatacja I Niezawodnosc-Maintenance and Reliability, 20, no. 3 (2018):378-386,
https://doi.org/10.17531/ein.2018.3.5 . .

TY  - JOUR
AU  - Petrović, Andrija
AU  - Svorcan, Jelena
AU  - Pejčev, Aleksandar
AU  - Radenković, Darko
AU  - Petrović, Aleksandar
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2930
AB  - Different applications of a variable area convergent-divergent nozzle are found in various parts of the industry. This paper presents the development of a new design methodology for a variable area convergent-divergent nozzle, to maintain constant nozzle area ratio for different values of mass flow rates. The validation of the presented model was carried out on an example supersonic ejector using experimental, numerical and analytical data. Analytical (one dimensional) and computational fluid dynamics models showed satisfactory prediction performance in comparison with the experiment. The average entrainment ratio error was between 10% and 7%, respectively. Results confirmed that the velocity of the primary fluid at the nozzle outlet is in accordance with the one dimensional analysis. Although disturbances (strong and weak shock waves) are visible, their effects are negligible. Also, supersonic ejector performances are presented through relations between entrainment ratio, outlet pressure and spindle position. Disadvantages of variable area nozzle utilization in ejector applications are emphasized.
PB  - Elsevier Science Inc, New York
T2  - Applied Mathematical Modelling
T1  - Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods
EP  - 225
SP  - 206
VL  - 57
DO  - 10.1016/j.apm.2018.01.016
ER  - 

@article{
author = "Petrović, Andrija and Svorcan, Jelena and Pejčev, Aleksandar and Radenković, Darko and Petrović, Aleksandar",
year = "2018",
abstract = "Different applications of a variable area convergent-divergent nozzle are found in various parts of the industry. This paper presents the development of a new design methodology for a variable area convergent-divergent nozzle, to maintain constant nozzle area ratio for different values of mass flow rates. The validation of the presented model was carried out on an example supersonic ejector using experimental, numerical and analytical data. Analytical (one dimensional) and computational fluid dynamics models showed satisfactory prediction performance in comparison with the experiment. The average entrainment ratio error was between 10% and 7%, respectively. Results confirmed that the velocity of the primary fluid at the nozzle outlet is in accordance with the one dimensional analysis. Although disturbances (strong and weak shock waves) are visible, their effects are negligible. Also, supersonic ejector performances are presented through relations between entrainment ratio, outlet pressure and spindle position. Disadvantages of variable area nozzle utilization in ejector applications are emphasized.",
publisher = "Elsevier Science Inc, New York",
journal = "Applied Mathematical Modelling",
title = "Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods",
pages = "225-206",
volume = "57",
doi = "10.1016/j.apm.2018.01.016"
}

Petrović, A., Svorcan, J., Pejčev, A., Radenković, D.,& Petrović, A.. (2018). Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods. in Applied Mathematical Modelling
Elsevier Science Inc, New York., 57, 206-225.
https://doi.org/10.1016/j.apm.2018.01.016

Petrović A, Svorcan J, Pejčev A, Radenković D, Petrović A. Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods. in Applied Mathematical Modelling. 2018;57:206-225.
doi:10.1016/j.apm.2018.01.016 .

Petrović, Andrija, Svorcan, Jelena, Pejčev, Aleksandar, Radenković, Darko, Petrović, Aleksandar, "Comparison of novel variable area convergent-divergent nozzle performances obtained by analytic, computational and experimental methods" in Applied Mathematical Modelling, 57 (2018):206-225,
https://doi.org/10.1016/j.apm.2018.01.016 . .

TY  - CONF
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
AU  - Milošević, Miloš
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2794
AB  - Pressure equipment has widespread application in various industrial sectors. Due to this variety, pressure equipment can have complex structure and is subjected to different working loads (static, dynamic, thermal etc.) during the operation life that can cause failure. Strain measurement of complex structure has always been a huge challenge for researchers. Conventional experimental methods (e.g. strain gauges) give only limited data sets regarding measurement on critical areas with high geometrical discontinuities. 3D Digital Image Correlation method is an optical method that enables full-field strain measurement of critical areas on structural components. Sphere/cylinder junction is common geometrical discontinuity on pressure equipment and globe valve housing was chosen as representative example. In this paper, globe valve housing was subjected to external axial loading caused by pipeline dilatations. Highest measured von Mises strain values around 0.15 % were recorded on cylinder/sphere intersection. Determining strain state of critical areas enables better understanding of complex structures and provides an opportunity for further development and improvement for practical industrial application.
PB  - Elsevier Science Bv, Amsterdam
C3  - Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity
T1  - Strain measurement of pressure equipment components using 3D Digital Image Correlation method
EP  - 1608
SP  - 1605
VL  - 13
DO  - 10.1016/j.prostr.2018.12.338
ER  - 

@conference{
author = "Mitrović, Nenad and Petrović, Aleksandar and Milošević, Miloš",
year = "2018",
abstract = "Pressure equipment has widespread application in various industrial sectors. Due to this variety, pressure equipment can have complex structure and is subjected to different working loads (static, dynamic, thermal etc.) during the operation life that can cause failure. Strain measurement of complex structure has always been a huge challenge for researchers. Conventional experimental methods (e.g. strain gauges) give only limited data sets regarding measurement on critical areas with high geometrical discontinuities. 3D Digital Image Correlation method is an optical method that enables full-field strain measurement of critical areas on structural components. Sphere/cylinder junction is common geometrical discontinuity on pressure equipment and globe valve housing was chosen as representative example. In this paper, globe valve housing was subjected to external axial loading caused by pipeline dilatations. Highest measured von Mises strain values around 0.15 % were recorded on cylinder/sphere intersection. Determining strain state of critical areas enables better understanding of complex structures and provides an opportunity for further development and improvement for practical industrial application.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity",
title = "Strain measurement of pressure equipment components using 3D Digital Image Correlation method",
pages = "1608-1605",
volume = "13",
doi = "10.1016/j.prostr.2018.12.338"
}

Mitrović, N., Petrović, A.,& Milošević, M.. (2018). Strain measurement of pressure equipment components using 3D Digital Image Correlation method. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity
Elsevier Science Bv, Amsterdam., 13, 1605-1608.
https://doi.org/10.1016/j.prostr.2018.12.338

Mitrović N, Petrović A, Milošević M. Strain measurement of pressure equipment components using 3D Digital Image Correlation method. in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity. 2018;13:1605-1608.
doi:10.1016/j.prostr.2018.12.338 .

Mitrović, Nenad, Petrović, Aleksandar, Milošević, Miloš, "Strain measurement of pressure equipment components using 3D Digital Image Correlation method" in Procedia Structural Integrity - ECF22 - Loading and environmental effects on structural integrity, 13 (2018):1605-1608,
https://doi.org/10.1016/j.prostr.2018.12.338 . .

TY  - JOUR
AU  - Lomović, Miloš
AU  - Petrović, Andrija
AU  - Ristanović, Milan
AU  - Petrović, Aleksandar
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2898
AB  - This paper gives a novel approach to modeling, simulation and control of a water desalination plant. The process in desalination plant is based on a vapour compression acquired by a liquid jet vacuum ejector. Optimal plant design for a nominal operating point is obtained using the combination of the multi-objective optimization with the multi-criteria decision making. Furthermore, the dynamic steady-state model which includes a liquid jet vacuum ejector, pump, valve and pressure vessel is developed. Moreover, for the different values of inlet temperature and water mass flow rate (disturbances) the optimal regimes of system actuators are found by the antlion algorithm, with respect to the profit maximization. Also, the control-oriented model of the system has been developed and linearized around different operating points to design a gain-scheduling nonlinear proportional integral controller. Additionally, it is demonstrated that the proposed controller is capable of guiding the system through the optimal states under the influence of disturbances. A map of the controller gains is determined by extensive simulation minimizing the appropriate cost functions. High-fidelity model has been numerically simulated in order to demonstrate that the developed method provides the desired design specifications while minimizing operational costs.
PB  - Desalination Publ, Hopkinton
T2  - Desalination and Water Treatment
T1  - Modeling, simulation and PI gain-scheduling controller optimization of water desalination plant with liquid jet vacuum ejector
EP  - 110
SP  - 92
VL  - 136
DO  - 10.5004/dwt.2018.23233
ER  - 

@article{
author = "Lomović, Miloš and Petrović, Andrija and Ristanović, Milan and Petrović, Aleksandar",
year = "2018",
abstract = "This paper gives a novel approach to modeling, simulation and control of a water desalination plant. The process in desalination plant is based on a vapour compression acquired by a liquid jet vacuum ejector. Optimal plant design for a nominal operating point is obtained using the combination of the multi-objective optimization with the multi-criteria decision making. Furthermore, the dynamic steady-state model which includes a liquid jet vacuum ejector, pump, valve and pressure vessel is developed. Moreover, for the different values of inlet temperature and water mass flow rate (disturbances) the optimal regimes of system actuators are found by the antlion algorithm, with respect to the profit maximization. Also, the control-oriented model of the system has been developed and linearized around different operating points to design a gain-scheduling nonlinear proportional integral controller. Additionally, it is demonstrated that the proposed controller is capable of guiding the system through the optimal states under the influence of disturbances. A map of the controller gains is determined by extensive simulation minimizing the appropriate cost functions. High-fidelity model has been numerically simulated in order to demonstrate that the developed method provides the desired design specifications while minimizing operational costs.",
publisher = "Desalination Publ, Hopkinton",
journal = "Desalination and Water Treatment",
title = "Modeling, simulation and PI gain-scheduling controller optimization of water desalination plant with liquid jet vacuum ejector",
pages = "110-92",
volume = "136",
doi = "10.5004/dwt.2018.23233"
}

Lomović, M., Petrović, A., Ristanović, M.,& Petrović, A.. (2018). Modeling, simulation and PI gain-scheduling controller optimization of water desalination plant with liquid jet vacuum ejector. in Desalination and Water Treatment
Desalination Publ, Hopkinton., 136, 92-110.
https://doi.org/10.5004/dwt.2018.23233

Lomović M, Petrović A, Ristanović M, Petrović A. Modeling, simulation and PI gain-scheduling controller optimization of water desalination plant with liquid jet vacuum ejector. in Desalination and Water Treatment. 2018;136:92-110.
doi:10.5004/dwt.2018.23233 .

Lomović, Miloš, Petrović, Andrija, Ristanović, Milan, Petrović, Aleksandar, "Modeling, simulation and PI gain-scheduling controller optimization of water desalination plant with liquid jet vacuum ejector" in Desalination and Water Treatment, 136 (2018):92-110,
https://doi.org/10.5004/dwt.2018.23233 . .

TY  - JOUR
AU  - Petrović, Andrija
AU  - Lomović, Miloš
AU  - Ristanović, Milan
AU  - Petrović, Aleksandar
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2865
AB  - U radu je prikazan metod modelovanja, simulacije i upravljanja postrojenja za desalinizaciju vode. Postrojenje za desalinizaciju vode spada u klasu postrojenja koje uparavaju slanu vodu korićenjem vodeno-parnog ejektora. U cilju validacije rezultata simulacije dinamičkog modela, razvijenog u cilju upravljanja, rezultati stacionarne simulacije postrojenja su korišćeni. Dodatno razvijen je PI kontroler koji dovodi sistem do željenih stanja pri uticaju poremećaja. Linearizovani model postrojenja je verfikovan pomoću nelinearnog dinamičkog modela. Pokazano je da navedeni pristup daje zadovoljavajuće rezultate.
AB  - In this paper, modelling, simulation and control of water desalination plant is presented. The desalination plant is based on vapour compression method acquired utilizing a liquid jet ejector. Nonlinear steady-state model is developed in order to verify simplified dynamic model for control purposes. Furthermore, to design PI controller capable of guiding the system through desired states under the influence of disturbances, the linearized model of the plant has been developed and verified applying the nonlinear dynamical model. It is shown that presented approach can deliver satisfying model and tracking results.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - Modelovanje simulacija i upravljanje postrojenja za desalinizaciju vode
T1  - Modelling, simulation and control of desalination plant with a liquid jet ejector
EP  - 536
IS  - 4
SP  - 530
VL  - 46
DO  - 10.5937/fmet1804530P
ER  - 

@article{
author = "Petrović, Andrija and Lomović, Miloš and Ristanović, Milan and Petrović, Aleksandar",
year = "2018",
abstract = "U radu je prikazan metod modelovanja, simulacije i upravljanja postrojenja za desalinizaciju vode. Postrojenje za desalinizaciju vode spada u klasu postrojenja koje uparavaju slanu vodu korićenjem vodeno-parnog ejektora. U cilju validacije rezultata simulacije dinamičkog modela, razvijenog u cilju upravljanja, rezultati stacionarne simulacije postrojenja su korišćeni. Dodatno razvijen je PI kontroler koji dovodi sistem do željenih stanja pri uticaju poremećaja. Linearizovani model postrojenja je verfikovan pomoću nelinearnog dinamičkog modela. Pokazano je da navedeni pristup daje zadovoljavajuće rezultate., In this paper, modelling, simulation and control of water desalination plant is presented. The desalination plant is based on vapour compression method acquired utilizing a liquid jet ejector. Nonlinear steady-state model is developed in order to verify simplified dynamic model for control purposes. Furthermore, to design PI controller capable of guiding the system through desired states under the influence of disturbances, the linearized model of the plant has been developed and verified applying the nonlinear dynamical model. It is shown that presented approach can deliver satisfying model and tracking results.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "Modelovanje simulacija i upravljanje postrojenja za desalinizaciju vode, Modelling, simulation and control of desalination plant with a liquid jet ejector",
pages = "536-530",
number = "4",
volume = "46",
doi = "10.5937/fmet1804530P"
}

Petrović, A., Lomović, M., Ristanović, M.,& Petrović, A.. (2018). Modelovanje simulacija i upravljanje postrojenja za desalinizaciju vode. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 46(4), 530-536.
https://doi.org/10.5937/fmet1804530P

Petrović A, Lomović M, Ristanović M, Petrović A. Modelovanje simulacija i upravljanje postrojenja za desalinizaciju vode. in FME Transactions. 2018;46(4):530-536.
doi:10.5937/fmet1804530P .

Petrović, Andrija, Lomović, Miloš, Ristanović, Milan, Petrović, Aleksandar, "Modelovanje simulacija i upravljanje postrojenja za desalinizaciju vode" in FME Transactions, 46, no. 4 (2018):530-536,
https://doi.org/10.5937/fmet1804530P . .

TY  - CONF
AU  - Mitrović, Nenad
AU  - Petrović, Aleksandar
AU  - Milošević, Miloš
AU  - Momčilović, Nikola
AU  - Popović, Predrag
AU  - Maneski, Taško
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7685
AB  - Globe valves are one of the most widely used industrial fittings. Due to variety in globe valve application, different loadings occur in its working life (static, dynamic, thermal etc.), but the most dominant one is internal pressure. This paper presents the analysis of standard globe valve housing under the internal pressure using 3D Digital Image Correlation method, Finite element analysis and calculation according to EN standard. Experimental analysis was focused on determining mechanical properties of critical areas, i.e. on local areas of globe valve housing with high geometrical discontinuities. Experimental system consists of cameras for 3D displacement and strain analysis and software Aramis. Models designed using FEA are verified through the experiment, while at the same time the possibility of using Aramis system for these constructions has been proven. It is found that the predictions from the model agree well with experimental results as the result differences between two methods in the area of the highest strain values vary below 30 %, which is satisfactory for engineering application. Experimental and numerical results demonstrate that the experimental method is adequate for solving geometrically complex problems and provides an opportunity for further development and improvement for practical industrial application.
PB  - Innovation Center of Faculty of Mechanical Engineering
C3  - International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017
T1  - 3D DIGITAL IMAGE CORRELATION STUDY OF GLOBE VALVE HOUSING SUBJECTED TO INTERNAL PRESSURE
SP  - 36
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7685
ER  - 

@conference{
author = "Mitrović, Nenad and Petrović, Aleksandar and Milošević, Miloš and Momčilović, Nikola and Popović, Predrag and Maneski, Taško",
year = "2017",
abstract = "Globe valves are one of the most widely used industrial fittings. Due to variety in globe valve application, different loadings occur in its working life (static, dynamic, thermal etc.), but the most dominant one is internal pressure. This paper presents the analysis of standard globe valve housing under the internal pressure using 3D Digital Image Correlation method, Finite element analysis and calculation according to EN standard. Experimental analysis was focused on determining mechanical properties of critical areas, i.e. on local areas of globe valve housing with high geometrical discontinuities. Experimental system consists of cameras for 3D displacement and strain analysis and software Aramis. Models designed using FEA are verified through the experiment, while at the same time the possibility of using Aramis system for these constructions has been proven. It is found that the predictions from the model agree well with experimental results as the result differences between two methods in the area of the highest strain values vary below 30 %, which is satisfactory for engineering application. Experimental and numerical results demonstrate that the experimental method is adequate for solving geometrically complex problems and provides an opportunity for further development and improvement for practical industrial application.",
publisher = "Innovation Center of Faculty of Mechanical Engineering",
journal = "International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017",
title = "3D DIGITAL IMAGE CORRELATION STUDY OF GLOBE VALVE HOUSING SUBJECTED TO INTERNAL PRESSURE",
pages = "36",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7685"
}

Mitrović, N., Petrović, A., Milošević, M., Momčilović, N., Popović, P.,& Maneski, T.. (2017). 3D DIGITAL IMAGE CORRELATION STUDY OF GLOBE VALVE HOUSING SUBJECTED TO INTERNAL PRESSURE. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017
Innovation Center of Faculty of Mechanical Engineering., 36.
https://hdl.handle.net/21.15107/rcub_machinery_7685

Mitrović N, Petrović A, Milošević M, Momčilović N, Popović P, Maneski T. 3D DIGITAL IMAGE CORRELATION STUDY OF GLOBE VALVE HOUSING SUBJECTED TO INTERNAL PRESSURE. in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017. 2017;:36.
https://hdl.handle.net/21.15107/rcub_machinery_7685 .

Mitrović, Nenad, Petrović, Aleksandar, Milošević, Miloš, Momčilović, Nikola, Popović, Predrag, Maneski, Taško, "3D DIGITAL IMAGE CORRELATION STUDY OF GLOBE VALVE HOUSING SUBJECTED TO INTERNAL PRESSURE" in International Conference of Experimental and Numerical Investigations and New Technologies CNN TECH 2017 (2017):36,
https://hdl.handle.net/21.15107/rcub_machinery_7685 .

TY  - JOUR
AU  - Božović, Milan
AU  - Petrović, Aleksandar
AU  - Petrović, Andrija
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2502
AB  - Klanična industrija produkuje velike količine otpadnih voda, koje ugrožavaju i degradiraju prirodne prijemnike - recipijente, obzirom da se otpadne vode najčešće ispuštaju bez bilo kakvog oblika obrade ili prečišćavanja. Otpadne vode klanične industrije sa sobom nose fekalije, slamu, neprerađenu stočnu hranu, razne stomačne izlučevine, krv, masnoće, razne čvrste otpatke i druge prisutne organske materije. Mnoga primenjena tehničko-tehnološka rešenja u cilju sprečavanja ugrožavanja prirodnih recipijenata nisu dala adekvatne rezultate sa ekološkog aspekta. Rekonstrukcijom jednog sistema za predtretman klaničnih otpadnih voda primenom tehničko-tehnološkog rešenja ejektor - pumpa, ne samo da su dobijeni dobri rezultati zahtevani po projektu, nego su ukazali i na mogućnost njihove primene kod mnogih tipova agroindustrijskih otpadnih voda, naročito kod sve brojnijih malih agroindustrijskih pogona.
AB  - Slaughter industry produces large amounts of waste water, which endanger and degrade the natural recipients - recipients, given that the waste vode najčešće discharged without any form of treatment or purification. Wastewater slaughter industry carry faeces, straw, unprocessed animal feed, various stomach secretions, blood, fat, a variety of solid waste and other organic matter present. Many applied technical and technological solutions in order to prevent harming the recipients are not given adequate results from the ecological aspect. The reconstruction of a system for pre-treatment and slaughter waste water by applying technological solutions ejector - pump, not only have obtained good results required by the project, but also pointed to the possibility of their use in many types of agro-industrial waste water, especially with the growing number of small agro-industrial drive .
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Tehnološka obrada klaničnih otpadnih voda primenom ejektora u sistemu za predtretman
T1  - Technological processing waste water using the dressing the ejector system for pretreament
EP  - 73
IS  - 1
SP  - 68
VL  - 72
DO  - 10.5937/tehnika1701068B
ER  - 

@article{
author = "Božović, Milan and Petrović, Aleksandar and Petrović, Andrija",
year = "2017",
abstract = "Klanična industrija produkuje velike količine otpadnih voda, koje ugrožavaju i degradiraju prirodne prijemnike - recipijente, obzirom da se otpadne vode najčešće ispuštaju bez bilo kakvog oblika obrade ili prečišćavanja. Otpadne vode klanične industrije sa sobom nose fekalije, slamu, neprerađenu stočnu hranu, razne stomačne izlučevine, krv, masnoće, razne čvrste otpatke i druge prisutne organske materije. Mnoga primenjena tehničko-tehnološka rešenja u cilju sprečavanja ugrožavanja prirodnih recipijenata nisu dala adekvatne rezultate sa ekološkog aspekta. Rekonstrukcijom jednog sistema za predtretman klaničnih otpadnih voda primenom tehničko-tehnološkog rešenja ejektor - pumpa, ne samo da su dobijeni dobri rezultati zahtevani po projektu, nego su ukazali i na mogućnost njihove primene kod mnogih tipova agroindustrijskih otpadnih voda, naročito kod sve brojnijih malih agroindustrijskih pogona., Slaughter industry produces large amounts of waste water, which endanger and degrade the natural recipients - recipients, given that the waste vode najčešće discharged without any form of treatment or purification. Wastewater slaughter industry carry faeces, straw, unprocessed animal feed, various stomach secretions, blood, fat, a variety of solid waste and other organic matter present. Many applied technical and technological solutions in order to prevent harming the recipients are not given adequate results from the ecological aspect. The reconstruction of a system for pre-treatment and slaughter waste water by applying technological solutions ejector - pump, not only have obtained good results required by the project, but also pointed to the possibility of their use in many types of agro-industrial waste water, especially with the growing number of small agro-industrial drive .",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Tehnološka obrada klaničnih otpadnih voda primenom ejektora u sistemu za predtretman, Technological processing waste water using the dressing the ejector system for pretreament",
pages = "73-68",
number = "1",
volume = "72",
doi = "10.5937/tehnika1701068B"
}

Božović, M., Petrović, A.,& Petrović, A.. (2017). Tehnološka obrada klaničnih otpadnih voda primenom ejektora u sistemu za predtretman. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 72(1), 68-73.
https://doi.org/10.5937/tehnika1701068B

Božović M, Petrović A, Petrović A. Tehnološka obrada klaničnih otpadnih voda primenom ejektora u sistemu za predtretman. in Tehnika. 2017;72(1):68-73.
doi:10.5937/tehnika1701068B .

Božović, Milan, Petrović, Aleksandar, Petrović, Andrija, "Tehnološka obrada klaničnih otpadnih voda primenom ejektora u sistemu za predtretman" in Tehnika, 72, no. 1 (2017):68-73,
https://doi.org/10.5937/tehnika1701068B . .

TY  - CONF
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Petrović, Aleksandar
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4513
AB  - Nanošenje zaštitnih prevlaka na mašinske delove nalazi sve širu i učestaliju
primenu u svim granama industrije. Osnovna funkcija zaštinih prevlaka je
produženje radnog veka mašinskih delova povećanjem otpornosti na eroziju,
abraziju, oksidaciju, koroziju itd. Hladna metalizacija je postupak nanošenja
dodatnog materijala u obliku praha u čvrstom stanju, na osnovni materijal
(podlogu). Čestice dodatnog materijala dovode se u struju gasa koji se kreće
velikim brzinama, pri čemu je temperatura struje gasa obavezno niža od
temperature topljenja dodatnog materijala. Zbog relativno niske temperature
u procesu nanošenja, ovim postupkom je moguće nanositi materijale koji su
podložni oksidaciji (Al, Cu, Ti itd.) i razlaganju (WC, SiC itd.) na visokim
temperaturama. U poređenju sa ostalim postupcima metalizacije, hladna
metalizacija izdvaja se kao postupak sa najnižom temperaturom u procesu
nanošenja prevlaka. Hladna metalizacija nalazi sve širu primenu u industriji,
pre svega zbog izuzetnog kvaliteta dobijenih prevlaka. U ovom radu opisan
je princip rada kao i područje primene postupka hladne metalizacije.
PB  - Belgrade : Singidunum University
C3  - Syntesis 2017 - International Scientific Conference Of IT And Business Related Research
T1  - Hladna metalizacija
DO  - 10.15308/Sinteza-2017-343-348
ER  - 

@conference{
author = "Maslarević, Aleksandar and Bakić, Gordana and Đukić, Miloš and Rajičić, Bratislav and Petrović, Aleksandar",
year = "2017",
abstract = "Nanošenje zaštitnih prevlaka na mašinske delove nalazi sve širu i učestaliju
primenu u svim granama industrije. Osnovna funkcija zaštinih prevlaka je
produženje radnog veka mašinskih delova povećanjem otpornosti na eroziju,
abraziju, oksidaciju, koroziju itd. Hladna metalizacija je postupak nanošenja
dodatnog materijala u obliku praha u čvrstom stanju, na osnovni materijal
(podlogu). Čestice dodatnog materijala dovode se u struju gasa koji se kreće
velikim brzinama, pri čemu je temperatura struje gasa obavezno niža od
temperature topljenja dodatnog materijala. Zbog relativno niske temperature
u procesu nanošenja, ovim postupkom je moguće nanositi materijale koji su
podložni oksidaciji (Al, Cu, Ti itd.) i razlaganju (WC, SiC itd.) na visokim
temperaturama. U poređenju sa ostalim postupcima metalizacije, hladna
metalizacija izdvaja se kao postupak sa najnižom temperaturom u procesu
nanošenja prevlaka. Hladna metalizacija nalazi sve širu primenu u industriji,
pre svega zbog izuzetnog kvaliteta dobijenih prevlaka. U ovom radu opisan
je princip rada kao i područje primene postupka hladne metalizacije.",
publisher = "Belgrade : Singidunum University",
journal = "Syntesis 2017 - International Scientific Conference Of IT And Business Related Research",
title = "Hladna metalizacija",
doi = "10.15308/Sinteza-2017-343-348"
}

Maslarević, A., Bakić, G., Đukić, M., Rajičić, B.,& Petrović, A.. (2017). Hladna metalizacija. in Syntesis 2017 - International Scientific Conference Of IT And Business Related Research
Belgrade : Singidunum University..
https://doi.org/10.15308/Sinteza-2017-343-348

Maslarević A, Bakić G, Đukić M, Rajičić B, Petrović A. Hladna metalizacija. in Syntesis 2017 - International Scientific Conference Of IT And Business Related Research. 2017;.
doi:10.15308/Sinteza-2017-343-348 .

Maslarević, Aleksandar, Bakić, Gordana, Đukić, Miloš, Rajičić, Bratislav, Petrović, Aleksandar, "Hladna metalizacija" in Syntesis 2017 - International Scientific Conference Of IT And Business Related Research (2017),
https://doi.org/10.15308/Sinteza-2017-343-348 . .