TY  - CONF
AU  - Balać, Martina
AU  - Grbović, Aleksandar
AU  - Kastratović, Gordana
AU  - Petrović, A.
AU  - Sarvas, L.
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3797
AB  - Bridge constructions are developing rapidly as they are necessity in the transport network. The Passenger Boarding Bridge (PBB) provides passengers with means to embark and disembark a ship through weather protected tunnels. It is obvious that the endurance and safety of such structures are of paramount importance. It has been shown that forces and moments at three-tunnel boarding bridge supports were high in the critical cases, as well as stresses in pins and lugs. The aim of this research is to analyze crack propagation in the damaged supporting part of the PBB. After determination of critical components to demonstrate how dangerous the appearance of the crack could be and to evaluate the fatigue life of the damaged supporting part, numerical simulations based on the improved finite element method (FEM) were carried out. To do this, the determination of actual loads was conducted with special consideration. The predicted number of cycles to complete failure was low, indicating the fact that special attention has to be paid on the design of PBB’s critical supporting components.
PB  - Springer Science and Business Media Deutschland GmbH
C3  - Lecture Notes in Networks and Systems
T1  - Fatigue Life Evaluation of the Damaged Passenger Boarding Bridge Supports
EP  - 318
SP  - 299
VL  - 323
DO  - 10.1007/978-3-030-86009-7_16
ER  - 

@conference{
author = "Balać, Martina and Grbović, Aleksandar and Kastratović, Gordana and Petrović, A. and Sarvas, L.",
year = "2022",
abstract = "Bridge constructions are developing rapidly as they are necessity in the transport network. The Passenger Boarding Bridge (PBB) provides passengers with means to embark and disembark a ship through weather protected tunnels. It is obvious that the endurance and safety of such structures are of paramount importance. It has been shown that forces and moments at three-tunnel boarding bridge supports were high in the critical cases, as well as stresses in pins and lugs. The aim of this research is to analyze crack propagation in the damaged supporting part of the PBB. After determination of critical components to demonstrate how dangerous the appearance of the crack could be and to evaluate the fatigue life of the damaged supporting part, numerical simulations based on the improved finite element method (FEM) were carried out. To do this, the determination of actual loads was conducted with special consideration. The predicted number of cycles to complete failure was low, indicating the fact that special attention has to be paid on the design of PBB’s critical supporting components.",
publisher = "Springer Science and Business Media Deutschland GmbH",
journal = "Lecture Notes in Networks and Systems",
title = "Fatigue Life Evaluation of the Damaged Passenger Boarding Bridge Supports",
pages = "318-299",
volume = "323",
doi = "10.1007/978-3-030-86009-7_16"
}

Balać, M., Grbović, A., Kastratović, G., Petrović, A.,& Sarvas, L.. (2022). Fatigue Life Evaluation of the Damaged Passenger Boarding Bridge Supports. in Lecture Notes in Networks and Systems
Springer Science and Business Media Deutschland GmbH., 323, 299-318.
https://doi.org/10.1007/978-3-030-86009-7_16

Balać M, Grbović A, Kastratović G, Petrović A, Sarvas L. Fatigue Life Evaluation of the Damaged Passenger Boarding Bridge Supports. in Lecture Notes in Networks and Systems. 2022;323:299-318.
doi:10.1007/978-3-030-86009-7_16 .

Balać, Martina, Grbović, Aleksandar, Kastratović, Gordana, Petrović, A., Sarvas, L., "Fatigue Life Evaluation of the Damaged Passenger Boarding Bridge Supports" in Lecture Notes in Networks and Systems, 323 (2022):299-318,
https://doi.org/10.1007/978-3-030-86009-7_16 . .

TY  - JOUR
AU  - Matović, Valentina
AU  - Trbojević-Stanković, Jasna
AU  - Matija, Lidija
AU  - Šarac, Dušan
AU  - Vasić-Milovanović, Aleksandra
AU  - Petrović, A.
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3521
AB  - We aimed to assess the near infrared spectroscopy as a method for non-invasive on-line detection of hyperglycemia from spent hemodialysis effluent. We used partial least squares regression and several machine learning algorithms: random forest (RF), logistic regression, K-nearest neighbor (KNN), support vector machine (SVM), decision tree classifier, and Gaussian naive Bayes (NB) to classify normoglycemia from hyperglycemia. These classifier methods were used on the same dataset and evaluated by the area under the curve. The serum glucose levels were presented in the form of a binomial variable, where 0 indicated a glucose level within reference range and 1 a glucose level beyond the normal limit. For this reason, the methods of machine learning were applied as more specific methods of classification. RF and SVM have shown the best classification accuracy in predicting hyperglycemia, while decision tree and NB showed average accuracy.
PB  - Springer, New York
T2  - Journal of Applied Spectroscopy
T1  - Predicting Hyperglycemia Using NIR Spectrum of Spent Fluid in Hemodialysis Patients
EP  - 667
IS  - 3
SP  - 662
VL  - 88
DO  - 10.1007/s10812-021-01222-3
ER  - 

@article{
author = "Matović, Valentina and Trbojević-Stanković, Jasna and Matija, Lidija and Šarac, Dušan and Vasić-Milovanović, Aleksandra and Petrović, A.",
year = "2021",
abstract = "We aimed to assess the near infrared spectroscopy as a method for non-invasive on-line detection of hyperglycemia from spent hemodialysis effluent. We used partial least squares regression and several machine learning algorithms: random forest (RF), logistic regression, K-nearest neighbor (KNN), support vector machine (SVM), decision tree classifier, and Gaussian naive Bayes (NB) to classify normoglycemia from hyperglycemia. These classifier methods were used on the same dataset and evaluated by the area under the curve. The serum glucose levels were presented in the form of a binomial variable, where 0 indicated a glucose level within reference range and 1 a glucose level beyond the normal limit. For this reason, the methods of machine learning were applied as more specific methods of classification. RF and SVM have shown the best classification accuracy in predicting hyperglycemia, while decision tree and NB showed average accuracy.",
publisher = "Springer, New York",
journal = "Journal of Applied Spectroscopy",
title = "Predicting Hyperglycemia Using NIR Spectrum of Spent Fluid in Hemodialysis Patients",
pages = "667-662",
number = "3",
volume = "88",
doi = "10.1007/s10812-021-01222-3"
}

Matović, V., Trbojević-Stanković, J., Matija, L., Šarac, D., Vasić-Milovanović, A.,& Petrović, A.. (2021). Predicting Hyperglycemia Using NIR Spectrum of Spent Fluid in Hemodialysis Patients. in Journal of Applied Spectroscopy
Springer, New York., 88(3), 662-667.
https://doi.org/10.1007/s10812-021-01222-3

Matović V, Trbojević-Stanković J, Matija L, Šarac D, Vasić-Milovanović A, Petrović A. Predicting Hyperglycemia Using NIR Spectrum of Spent Fluid in Hemodialysis Patients. in Journal of Applied Spectroscopy. 2021;88(3):662-667.
doi:10.1007/s10812-021-01222-3 .

Matović, Valentina, Trbojević-Stanković, Jasna, Matija, Lidija, Šarac, Dušan, Vasić-Milovanović, Aleksandra, Petrović, A., "Predicting Hyperglycemia Using NIR Spectrum of Spent Fluid in Hemodialysis Patients" in Journal of Applied Spectroscopy, 88, no. 3 (2021):662-667,
https://doi.org/10.1007/s10812-021-01222-3 . .

TY  - JOUR
AU  - Balać, Martina
AU  - Grbović, Aleksandar
AU  - Petrović, A.
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2110
AB  - Most structural elements that represent parts of equipment and machines in the process industry are subjected to strength calculations. Structural materials and welded joints typically contain flaws and microcracks, from which cracks are initiated. Exploitation conditions can lead to the occurrence of cracks, even in cases when there are no flaws in the material, typically at locations with stress concentration. Penetration of two cylinders is the most commonly encountered form of geometric discontinuity of cylindrical surfaces which results in stress concentration. On a pressure vessel with two nozzles of different geometries, critical areas (i.e. stress concentration areas) are determined by experimental 3D Digital Image Correlation (DIC) method. Then, the numerical analysis of the equivalent 3D model is performed and the obtained results are comparable to experimental values. Since the fatigue cracks are expected in the high stress areas, in one of them - next to the nozzle in the numerical model - a crack has initiated. Then, crack growth is simulated using extended finite element method (XFEM). The aim of this paper is to show that it is possible to predict the crack growth direction and critical length of the crack which can occur in the pressure vessel, based on values of stress intensity factors (SIFs) evaluated in the numerical simulation.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Numerical predictions of crack growth in a pressure vessel with welded nozzles
EP  - 61
IS  - 1
SP  - 55
VL  - 15
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2110
ER  - 

@article{
author = "Balać, Martina and Grbović, Aleksandar and Petrović, A.",
year = "2015",
abstract = "Most structural elements that represent parts of equipment and machines in the process industry are subjected to strength calculations. Structural materials and welded joints typically contain flaws and microcracks, from which cracks are initiated. Exploitation conditions can lead to the occurrence of cracks, even in cases when there are no flaws in the material, typically at locations with stress concentration. Penetration of two cylinders is the most commonly encountered form of geometric discontinuity of cylindrical surfaces which results in stress concentration. On a pressure vessel with two nozzles of different geometries, critical areas (i.e. stress concentration areas) are determined by experimental 3D Digital Image Correlation (DIC) method. Then, the numerical analysis of the equivalent 3D model is performed and the obtained results are comparable to experimental values. Since the fatigue cracks are expected in the high stress areas, in one of them - next to the nozzle in the numerical model - a crack has initiated. Then, crack growth is simulated using extended finite element method (XFEM). The aim of this paper is to show that it is possible to predict the crack growth direction and critical length of the crack which can occur in the pressure vessel, based on values of stress intensity factors (SIFs) evaluated in the numerical simulation.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Numerical predictions of crack growth in a pressure vessel with welded nozzles",
pages = "61-55",
number = "1",
volume = "15",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2110"
}

Balać, M., Grbović, A.,& Petrović, A.. (2015). Numerical predictions of crack growth in a pressure vessel with welded nozzles. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 15(1), 55-61.
https://hdl.handle.net/21.15107/rcub_machinery_2110

Balać M, Grbović A, Petrović A. Numerical predictions of crack growth in a pressure vessel with welded nozzles. in Structural Integrity and Life. 2015;15(1):55-61.
https://hdl.handle.net/21.15107/rcub_machinery_2110 .

Balać, Martina, Grbović, Aleksandar, Petrović, A., "Numerical predictions of crack growth in a pressure vessel with welded nozzles" in Structural Integrity and Life, 15, no. 1 (2015):55-61,
https://hdl.handle.net/21.15107/rcub_machinery_2110 .

TY  - JOUR
AU  - Đerić, A.
AU  - Nikolić, J.
AU  - Mitrović, Nenad
AU  - Balać, Martina
AU  - Petrović, A.
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1529
AB  - U radu su prikazani proračuni cilindričnih omotača posuda pod pritiskom prema srpskom standardu SRPS M. E2.253 i prema evropskom harmonizovanom standardu EN 13445 koji potpada pod Direktivu o opremi pod pritiskom (Pressure equipment directive PED 97/23). Prikazane su uporedna analiza toka proračuna cilindričnih omotača i analiza rezultata za delove izrađene od istog materijala i iste geometrije. Prikazani su uporedni proračuni po domaćem i evropskom standardu za dva različita tipa posuda.
AB  - The paper illustrates the calculation of pressure vessel cylindrical shells, according to Serbian standard SRPS M. E2.253 and according to the harmonized European standard EN 13445 that is subject to Pressure equipment directive PED 97/23. Also illustrated is a comparative analysis of calculation procedures for cylindrical shells and results for parts constructed from the same material and geometry. Presented are comparative calculations for two pressure vessel types, according to the domestic and European standard.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Uporedni prikaz proračuna i analiza rezultata za posude pod pritiskom prema Srpskim i Evropskim standardima - cilindrični omotači
T1  - Comparative display of calculation and result analysis for pressure vessels according to Serbian and European standards: Cylindrical shells
EP  - 200
IS  - 3
SP  - 197
VL  - 12
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1529
ER  - 

@article{
author = "Đerić, A. and Nikolić, J. and Mitrović, Nenad and Balać, Martina and Petrović, A.",
year = "2012",
abstract = "U radu su prikazani proračuni cilindričnih omotača posuda pod pritiskom prema srpskom standardu SRPS M. E2.253 i prema evropskom harmonizovanom standardu EN 13445 koji potpada pod Direktivu o opremi pod pritiskom (Pressure equipment directive PED 97/23). Prikazane su uporedna analiza toka proračuna cilindričnih omotača i analiza rezultata za delove izrađene od istog materijala i iste geometrije. Prikazani su uporedni proračuni po domaćem i evropskom standardu za dva različita tipa posuda., The paper illustrates the calculation of pressure vessel cylindrical shells, according to Serbian standard SRPS M. E2.253 and according to the harmonized European standard EN 13445 that is subject to Pressure equipment directive PED 97/23. Also illustrated is a comparative analysis of calculation procedures for cylindrical shells and results for parts constructed from the same material and geometry. Presented are comparative calculations for two pressure vessel types, according to the domestic and European standard.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Uporedni prikaz proračuna i analiza rezultata za posude pod pritiskom prema Srpskim i Evropskim standardima - cilindrični omotači, Comparative display of calculation and result analysis for pressure vessels according to Serbian and European standards: Cylindrical shells",
pages = "200-197",
number = "3",
volume = "12",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1529"
}

Đerić, A., Nikolić, J., Mitrović, N., Balać, M.,& Petrović, A.. (2012). Uporedni prikaz proračuna i analiza rezultata za posude pod pritiskom prema Srpskim i Evropskim standardima - cilindrični omotači. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 12(3), 197-200.
https://hdl.handle.net/21.15107/rcub_machinery_1529

Đerić A, Nikolić J, Mitrović N, Balać M, Petrović A. Uporedni prikaz proračuna i analiza rezultata za posude pod pritiskom prema Srpskim i Evropskim standardima - cilindrični omotači. in Structural Integrity and Life. 2012;12(3):197-200.
https://hdl.handle.net/21.15107/rcub_machinery_1529 .

Đerić, A., Nikolić, J., Mitrović, Nenad, Balać, Martina, Petrović, A., "Uporedni prikaz proračuna i analiza rezultata za posude pod pritiskom prema Srpskim i Evropskim standardima - cilindrični omotači" in Structural Integrity and Life, 12, no. 3 (2012):197-200,
https://hdl.handle.net/21.15107/rcub_machinery_1529 .

TY  - JOUR
AU  - Janjuš, Z.
AU  - Petrović, A.
AU  - Jovović, Aleksandar
AU  - Prokić-Cvetković, Radica
AU  - Ilić, P.
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1415
AB  - Svrha rada je da se polimerni otpad prikaže kao sirovina ili na drugi način iskoristljiv materijal dobijen djelimičnim razdvajanjem komunalnog otpada. U radu je obrađena mogućnost ponovne upotrebe polipropilena recikliranjem uz dodatak staklenog praha, sa stanovišta žilavosti usljed udarnog opterećenja. Ispitivane su standardne epruvete, napravljene od osnovnog materijala - polipropilena i uz dodatak 0%, 5%, 10%, 15%, 20%, 25% i 30% staklenog praha granulacije manje od 0,5 mm, kroz šest ciklusa prerade. Izmjerene vrijednosti dale su mogućnost formiranja obrazaca promjene žilavosti posmatranog materijala sa različitim sadržajem stranog tijela, kroz cikluse prerade, što može pomoći u daljim istraživanjima i analizama.
AB  - The purpose of this paper is to show polymer waste as a raw material or otherwise usable material derived from a partial separation of communal waste. This paper describes the possibilities of polypropylene re-use through recycling with addition of glass powder, from the point of view of toughness caused by impact load. Standard test specimens, made of basic material - polypropylene, with addition of 0%, 5%, 10%, 15%, 20%, 25% and 30% of glass powder with granulation less than 0,5 mm, have been tested through six processing cycles. The measured values gave a possibility of forming patterns for changes of the observed material with different content of additives, through processing cycles, which can be helpful in further research and analysis.
T2  - Contemporary materials
T1  - Ispitivanje žilavosti polipropilena punjenog staklenim prahom
T1  - Testing the toughness of polypropylene filled with glass powder
EP  - 122
IS  - 1
SP  - 116
VL  - 3
DO  - 10.7251/COM1201116J
ER  - 

@article{
author = "Janjuš, Z. and Petrović, A. and Jovović, Aleksandar and Prokić-Cvetković, Radica and Ilić, P.",
year = "2012",
abstract = "Svrha rada je da se polimerni otpad prikaže kao sirovina ili na drugi način iskoristljiv materijal dobijen djelimičnim razdvajanjem komunalnog otpada. U radu je obrađena mogućnost ponovne upotrebe polipropilena recikliranjem uz dodatak staklenog praha, sa stanovišta žilavosti usljed udarnog opterećenja. Ispitivane su standardne epruvete, napravljene od osnovnog materijala - polipropilena i uz dodatak 0%, 5%, 10%, 15%, 20%, 25% i 30% staklenog praha granulacije manje od 0,5 mm, kroz šest ciklusa prerade. Izmjerene vrijednosti dale su mogućnost formiranja obrazaca promjene žilavosti posmatranog materijala sa različitim sadržajem stranog tijela, kroz cikluse prerade, što može pomoći u daljim istraživanjima i analizama., The purpose of this paper is to show polymer waste as a raw material or otherwise usable material derived from a partial separation of communal waste. This paper describes the possibilities of polypropylene re-use through recycling with addition of glass powder, from the point of view of toughness caused by impact load. Standard test specimens, made of basic material - polypropylene, with addition of 0%, 5%, 10%, 15%, 20%, 25% and 30% of glass powder with granulation less than 0,5 mm, have been tested through six processing cycles. The measured values gave a possibility of forming patterns for changes of the observed material with different content of additives, through processing cycles, which can be helpful in further research and analysis.",
journal = "Contemporary materials",
title = "Ispitivanje žilavosti polipropilena punjenog staklenim prahom, Testing the toughness of polypropylene filled with glass powder",
pages = "122-116",
number = "1",
volume = "3",
doi = "10.7251/COM1201116J"
}

Janjuš, Z., Petrović, A., Jovović, A., Prokić-Cvetković, R.,& Ilić, P.. (2012). Ispitivanje žilavosti polipropilena punjenog staklenim prahom. in Contemporary materials, 3(1), 116-122.
https://doi.org/10.7251/COM1201116J

Janjuš Z, Petrović A, Jovović A, Prokić-Cvetković R, Ilić P. Ispitivanje žilavosti polipropilena punjenog staklenim prahom. in Contemporary materials. 2012;3(1):116-122.
doi:10.7251/COM1201116J .

Janjuš, Z., Petrović, A., Jovović, Aleksandar, Prokić-Cvetković, Radica, Ilić, P., "Ispitivanje žilavosti polipropilena punjenog staklenim prahom" in Contemporary materials, 3, no. 1 (2012):116-122,
https://doi.org/10.7251/COM1201116J . .

TY  - CONF
AU  - Mitrović, Nenad
AU  - Milošević, Miloš
AU  - Momčilović, Nikola
AU  - Sedmak, Aleksandar
AU  - Petrović, A.
AU  - Maneski, Taško
PY  - 2011
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1308
PB  - Scientific Society for Mechanical Engineering
C3  - 28th Danubia - Adria - Symposium on Advances in Experimental Mechanics, DAS 2011
T1  - Experimental - Digital image correlation method and numerical simulation of standard globe valve housing
EP  - 104
SP  - 103
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1308
ER  - 

@conference{
author = "Mitrović, Nenad and Milošević, Miloš and Momčilović, Nikola and Sedmak, Aleksandar and Petrović, A. and Maneski, Taško",
year = "2011",
publisher = "Scientific Society for Mechanical Engineering",
journal = "28th Danubia - Adria - Symposium on Advances in Experimental Mechanics, DAS 2011",
title = "Experimental - Digital image correlation method and numerical simulation of standard globe valve housing",
pages = "104-103",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1308"
}

Mitrović, N., Milošević, M., Momčilović, N., Sedmak, A., Petrović, A.,& Maneski, T.. (2011). Experimental - Digital image correlation method and numerical simulation of standard globe valve housing. in 28th Danubia - Adria - Symposium on Advances in Experimental Mechanics, DAS 2011
Scientific Society for Mechanical Engineering., 103-104.
https://hdl.handle.net/21.15107/rcub_machinery_1308

Mitrović N, Milošević M, Momčilović N, Sedmak A, Petrović A, Maneski T. Experimental - Digital image correlation method and numerical simulation of standard globe valve housing. in 28th Danubia - Adria - Symposium on Advances in Experimental Mechanics, DAS 2011. 2011;:103-104.
https://hdl.handle.net/21.15107/rcub_machinery_1308 .

Mitrović, Nenad, Milošević, Miloš, Momčilović, Nikola, Sedmak, Aleksandar, Petrović, A., Maneski, Taško, "Experimental - Digital image correlation method and numerical simulation of standard globe valve housing" in 28th Danubia - Adria - Symposium on Advances in Experimental Mechanics, DAS 2011 (2011):103-104,
https://hdl.handle.net/21.15107/rcub_machinery_1308 .