TY  - JOUR
AU  - Petronić, Sanja
AU  - Jarić, Marko
AU  - Stević, Zoran
AU  - Maslarević, Aleksandar
AU  - Vasović, Ivana
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7798
AB  - The paper presents a detailed description of the oil rectification process used in upstream oil and gas plants, including the significant equipment involved. One such equipment highlighted in the study is a pressure vessel utilized as a separator to separate the liquid and gas phases. This pressure vessel has been in operation for over two decades. A thorough examination of the mentioned pressure equipment was conducted during the process evaluation. It was discovered that the internal side of the vessel, particularly its back elliptical head, had suffered extensive damage due to erosion and corrosion, emerging as the most significant cause of the deterioration. The application of RBI-estimation revealed that the vessel falls under the category of highly risk equipment, and there is a significant risk of both environmental and financial consequences associated with its potential failure (leakage). Such failure is anticipated to occur promptly in the area below the wear plate of the vessel's nozzle.
PB  - Elsevier
T2  - International Journal of Pressure Vessels and Piping
T1  - Analysis of remaining life assessment of three-phase gravity separator for oil rectification with the simultaneous usean RBI matrix
SP  - 105206
VL  - 209
DO  - 10.1016/j.ijpvp.2024
ER  - 

@article{
author = "Petronić, Sanja and Jarić, Marko and Stević, Zoran and Maslarević, Aleksandar and Vasović, Ivana",
year = "2024",
abstract = "The paper presents a detailed description of the oil rectification process used in upstream oil and gas plants, including the significant equipment involved. One such equipment highlighted in the study is a pressure vessel utilized as a separator to separate the liquid and gas phases. This pressure vessel has been in operation for over two decades. A thorough examination of the mentioned pressure equipment was conducted during the process evaluation. It was discovered that the internal side of the vessel, particularly its back elliptical head, had suffered extensive damage due to erosion and corrosion, emerging as the most significant cause of the deterioration. The application of RBI-estimation revealed that the vessel falls under the category of highly risk equipment, and there is a significant risk of both environmental and financial consequences associated with its potential failure (leakage). Such failure is anticipated to occur promptly in the area below the wear plate of the vessel's nozzle.",
publisher = "Elsevier",
journal = "International Journal of Pressure Vessels and Piping",
title = "Analysis of remaining life assessment of three-phase gravity separator for oil rectification with the simultaneous usean RBI matrix",
pages = "105206",
volume = "209",
doi = "10.1016/j.ijpvp.2024"
}

Petronić, S., Jarić, M., Stević, Z., Maslarević, A.,& Vasović, I.. (2024). Analysis of remaining life assessment of three-phase gravity separator for oil rectification with the simultaneous usean RBI matrix. in International Journal of Pressure Vessels and Piping
Elsevier., 209, 105206.
https://doi.org/10.1016/j.ijpvp.2024

Petronić S, Jarić M, Stević Z, Maslarević A, Vasović I. Analysis of remaining life assessment of three-phase gravity separator for oil rectification with the simultaneous usean RBI matrix. in International Journal of Pressure Vessels and Piping. 2024;209:105206.
doi:10.1016/j.ijpvp.2024 .

Petronić, Sanja, Jarić, Marko, Stević, Zoran, Maslarević, Aleksandar, Vasović, Ivana, "Analysis of remaining life assessment of three-phase gravity separator for oil rectification with the simultaneous usean RBI matrix" in International Journal of Pressure Vessels and Piping, 209 (2024):105206,
https://doi.org/10.1016/j.ijpvp.2024 . .

TY  - CONF
AU  - Manasijević, Srećko
AU  - Komatina, Mirko
AU  - Vidaković, Jelena
AU  - Stepanić, Pavle
AU  - Vasović, Ivana
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7277
C3  - SimTerm2022, PROCEEDINGS, 20th International Conference on Thermal Science and Engineering of Serbia
T1  - Flue Gas Heat Recovery in Wood Chip Boiler Used for Chip Drying
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7277
ER  - 

@conference{
author = "Manasijević, Srećko and Komatina, Mirko and Vidaković, Jelena and Stepanić, Pavle and Vasović, Ivana",
year = "2022",
journal = "SimTerm2022, PROCEEDINGS, 20th International Conference on Thermal Science and Engineering of Serbia",
title = "Flue Gas Heat Recovery in Wood Chip Boiler Used for Chip Drying",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7277"
}

Manasijević, S., Komatina, M., Vidaković, J., Stepanić, P.,& Vasović, I.. (2022). Flue Gas Heat Recovery in Wood Chip Boiler Used for Chip Drying. in SimTerm2022, PROCEEDINGS, 20th International Conference on Thermal Science and Engineering of Serbia.
https://hdl.handle.net/21.15107/rcub_machinery_7277

Manasijević S, Komatina M, Vidaković J, Stepanić P, Vasović I. Flue Gas Heat Recovery in Wood Chip Boiler Used for Chip Drying. in SimTerm2022, PROCEEDINGS, 20th International Conference on Thermal Science and Engineering of Serbia. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7277 .

Manasijević, Srećko, Komatina, Mirko, Vidaković, Jelena, Stepanić, Pavle, Vasović, Ivana, "Flue Gas Heat Recovery in Wood Chip Boiler Used for Chip Drying" in SimTerm2022, PROCEEDINGS, 20th International Conference on Thermal Science and Engineering of Serbia (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7277 .

TY  - JOUR
AU  - Vasić, Zoran M.
AU  - Maksimović, Katarina
AU  - Maksimović, Mirko S.
AU  - Vasović, Ivana
AU  - Vidanović, Nenad
AU  - Simonović, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3578
AB  - The thermo mechanical buckling and post-buckling behavior of layered composite shell type structure are considered with the finite element method under the combination of temperature load and applied mechanical loads. To account for through-thickness shear deformation effects, the thermal elastic, and higher-order shear deformation theory is used in this study. The refined higher order theories, that takes into account the effect of transverse normal deformation, is used to develop discrete finite element models for the thermal buckling analysis of composite laminates. Attention in this study is focused on analyzing the temperature effects on buckling and post-buckling behavior of thin shell structural components. Special attention in this paper is focused on studying of values of the hole in curved panel on thermal buckling behavior and consequently to expend and upgrade previously conducted investigation. Using finite element method, a broader observation of the critical temperature of loss of stability depending on the size of the hole was conducted. The presented numerical results based on higher-order shear deformation theory can be used as versatile and accurate method for buckling and post-buckling analyzes of thin-walled laminated plates under thermo mechanical loads.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Buckling and post-buckling behavior of shell type structures under thermo mechanical loads
EP  - 4357
IS  - 6
SP  - 4347
VL  - 25
DO  - 10.2298/TSCI201129079V
ER  - 

@article{
author = "Vasić, Zoran M. and Maksimović, Katarina and Maksimović, Mirko S. and Vasović, Ivana and Vidanović, Nenad and Simonović, Aleksandar",
year = "2021",
abstract = "The thermo mechanical buckling and post-buckling behavior of layered composite shell type structure are considered with the finite element method under the combination of temperature load and applied mechanical loads. To account for through-thickness shear deformation effects, the thermal elastic, and higher-order shear deformation theory is used in this study. The refined higher order theories, that takes into account the effect of transverse normal deformation, is used to develop discrete finite element models for the thermal buckling analysis of composite laminates. Attention in this study is focused on analyzing the temperature effects on buckling and post-buckling behavior of thin shell structural components. Special attention in this paper is focused on studying of values of the hole in curved panel on thermal buckling behavior and consequently to expend and upgrade previously conducted investigation. Using finite element method, a broader observation of the critical temperature of loss of stability depending on the size of the hole was conducted. The presented numerical results based on higher-order shear deformation theory can be used as versatile and accurate method for buckling and post-buckling analyzes of thin-walled laminated plates under thermo mechanical loads.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Buckling and post-buckling behavior of shell type structures under thermo mechanical loads",
pages = "4357-4347",
number = "6",
volume = "25",
doi = "10.2298/TSCI201129079V"
}

Vasić, Z. M., Maksimović, K., Maksimović, M. S., Vasović, I., Vidanović, N.,& Simonović, A.. (2021). Buckling and post-buckling behavior of shell type structures under thermo mechanical loads. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 25(6), 4347-4357.
https://doi.org/10.2298/TSCI201129079V

Vasić ZM, Maksimović K, Maksimović MS, Vasović I, Vidanović N, Simonović A. Buckling and post-buckling behavior of shell type structures under thermo mechanical loads. in Thermal Science. 2021;25(6):4347-4357.
doi:10.2298/TSCI201129079V .

Vasić, Zoran M., Maksimović, Katarina, Maksimović, Mirko S., Vasović, Ivana, Vidanović, Nenad, Simonović, Aleksandar, "Buckling and post-buckling behavior of shell type structures under thermo mechanical loads" in Thermal Science, 25, no. 6 (2021):4347-4357,
https://doi.org/10.2298/TSCI201129079V . .

TY  - JOUR
AU  - Maksimović, Mirko S.
AU  - Vasović, Ivana
AU  - Maksimović, Katarina
AU  - Trišović, Nataša
AU  - Maksimović, Stevan M.
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2793
AB  - Predmet ovog istraživanja je usmeren na uspostavljanje proračunske procedure za analizu čvrstoće elemenata avionskih konstrukcija sa aspekta zamora i mehanike loma. Za tu svrhu ovde će biti uspostavljena proračunska procedura za procenu preostalog veka elemenata avionskih konstrukcija tipa dela oplate krila i uški pod dejstvom cikličnih opterećenja konstantne amplitude i spektra opterećenja. Poseban aspekt istraživanja se odnosi na primenu gustine energije deformacije (GED) za procenu preostalog veka elemenata konstrukcija sa inicijalnim oštećenjima tipa prskotina. Za određivanje analitičkih izraza za faktore intenziteta napona ovde su korišćeni specijalni singularni konačni elementi. Verifikacija proračunskih procedura za procene preostalog veka je podržana sa sa analitičkim i eksperimentalnim rezultatima uključivši i testove na zamor posebno sa aspekta eksperimentalnog određivanja malociklusnih zamornih karakteristika materijala.
AB  - The subject of this investigation is focused on developing computation procedure for strength analysis of damaged aircraft structural components with respect to fatigue and fracture mechanics. For that purpose, here will be defined computation procedures for residual life estimation of aircraft structural components such as wing skin and attachment lugs under cyclic loads of constant amplitude and load spectrum. A special aspect of this investigation is based on using of the Strain Energy Density (SED) method in residual life estimation of structural elements with initial cracks. To determine analytic formulae for the stress intensity factors here singular finite elements are used. Verification of computation procedures for residual life estimations will be supported with corresponding experimental tests for determination of low cyclic fatigue properties of materials and corresponding parameters of fracture mechanics, including fatigue tests of representative aircraft structural elements.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - Procena preostalog veka elemenata avionskih konstrukcija sa inicijalnim prskotinama
T1  - Residual life estimation of cracked aircraft structural components
EP  - 128
IS  - 1
SP  - 124
VL  - 46
DO  - 10.5937/fmet1801124M
ER  - 

@article{
author = "Maksimović, Mirko S. and Vasović, Ivana and Maksimović, Katarina and Trišović, Nataša and Maksimović, Stevan M.",
year = "2018",
abstract = "Predmet ovog istraživanja je usmeren na uspostavljanje proračunske procedure za analizu čvrstoće elemenata avionskih konstrukcija sa aspekta zamora i mehanike loma. Za tu svrhu ovde će biti uspostavljena proračunska procedura za procenu preostalog veka elemenata avionskih konstrukcija tipa dela oplate krila i uški pod dejstvom cikličnih opterećenja konstantne amplitude i spektra opterećenja. Poseban aspekt istraživanja se odnosi na primenu gustine energije deformacije (GED) za procenu preostalog veka elemenata konstrukcija sa inicijalnim oštećenjima tipa prskotina. Za određivanje analitičkih izraza za faktore intenziteta napona ovde su korišćeni specijalni singularni konačni elementi. Verifikacija proračunskih procedura za procene preostalog veka je podržana sa sa analitičkim i eksperimentalnim rezultatima uključivši i testove na zamor posebno sa aspekta eksperimentalnog određivanja malociklusnih zamornih karakteristika materijala., The subject of this investigation is focused on developing computation procedure for strength analysis of damaged aircraft structural components with respect to fatigue and fracture mechanics. For that purpose, here will be defined computation procedures for residual life estimation of aircraft structural components such as wing skin and attachment lugs under cyclic loads of constant amplitude and load spectrum. A special aspect of this investigation is based on using of the Strain Energy Density (SED) method in residual life estimation of structural elements with initial cracks. To determine analytic formulae for the stress intensity factors here singular finite elements are used. Verification of computation procedures for residual life estimations will be supported with corresponding experimental tests for determination of low cyclic fatigue properties of materials and corresponding parameters of fracture mechanics, including fatigue tests of representative aircraft structural elements.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "Procena preostalog veka elemenata avionskih konstrukcija sa inicijalnim prskotinama, Residual life estimation of cracked aircraft structural components",
pages = "128-124",
number = "1",
volume = "46",
doi = "10.5937/fmet1801124M"
}

Maksimović, M. S., Vasović, I., Maksimović, K., Trišović, N.,& Maksimović, S. M.. (2018). Procena preostalog veka elemenata avionskih konstrukcija sa inicijalnim prskotinama. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 46(1), 124-128.
https://doi.org/10.5937/fmet1801124M

Maksimović MS, Vasović I, Maksimović K, Trišović N, Maksimović SM. Procena preostalog veka elemenata avionskih konstrukcija sa inicijalnim prskotinama. in FME Transactions. 2018;46(1):124-128.
doi:10.5937/fmet1801124M .

Maksimović, Mirko S., Vasović, Ivana, Maksimović, Katarina, Trišović, Nataša, Maksimović, Stevan M., "Procena preostalog veka elemenata avionskih konstrukcija sa inicijalnim prskotinama" in FME Transactions, 46, no. 1 (2018):124-128,
https://doi.org/10.5937/fmet1801124M . .

TY  - JOUR
AU  - Ristić, M.
AU  - Vasović, Ivana
AU  - Alil, A.
AU  - Obradović, J.
AU  - Prokić-Cvetković, Radica
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2966
AB  - The aim of this paper was to determine the causes of screws failures in compressor valves, obtained from petroleum industry. The analysed screws were in exploitation and deposition coated. Before the fracture analysis, control calculation of screws is done in order to determine, if the screws are properly dimensioned. After visual and radiographic examination, their chemical composition and structure were analysed. Detail fractography was performed on fractured surfaces to try to obtain an impression about screws failure mechanism. Qualitative analysis of deposit was employed in order to confirm if there was any possible influence of surroundings during their failure in terms of corrosion-assisted cracking. The macrofractography of originally broken surfaces shows a rough and complex topography of fracture surfaces indicating to a possibility that screws failure has been a result of complex loading conditions. Presence of sulfur containing particles on the fracture surfaces of broken screws and in deposit reveals a possibility that failure was environmentally-assisted.
PB  - Scibulcom Ltd.
T2  - Journal of the Balkan Tribological Association
T1  - Failure analysis of carbon steel screws under the service in the presence of corrosion environment
EP  - 303
IS  - 2
SP  - 291
VL  - 24
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3792
ER  - 

@article{
author = "Ristić, M. and Vasović, Ivana and Alil, A. and Obradović, J. and Prokić-Cvetković, Radica",
year = "2018",
abstract = "The aim of this paper was to determine the causes of screws failures in compressor valves, obtained from petroleum industry. The analysed screws were in exploitation and deposition coated. Before the fracture analysis, control calculation of screws is done in order to determine, if the screws are properly dimensioned. After visual and radiographic examination, their chemical composition and structure were analysed. Detail fractography was performed on fractured surfaces to try to obtain an impression about screws failure mechanism. Qualitative analysis of deposit was employed in order to confirm if there was any possible influence of surroundings during their failure in terms of corrosion-assisted cracking. The macrofractography of originally broken surfaces shows a rough and complex topography of fracture surfaces indicating to a possibility that screws failure has been a result of complex loading conditions. Presence of sulfur containing particles on the fracture surfaces of broken screws and in deposit reveals a possibility that failure was environmentally-assisted.",
publisher = "Scibulcom Ltd.",
journal = "Journal of the Balkan Tribological Association",
title = "Failure analysis of carbon steel screws under the service in the presence of corrosion environment",
pages = "303-291",
number = "2",
volume = "24",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3792"
}

Ristić, M., Vasović, I., Alil, A., Obradović, J.,& Prokić-Cvetković, R.. (2018). Failure analysis of carbon steel screws under the service in the presence of corrosion environment. in Journal of the Balkan Tribological Association
Scibulcom Ltd.., 24(2), 291-303.
https://hdl.handle.net/21.15107/rcub_technorep_3792

Ristić M, Vasović I, Alil A, Obradović J, Prokić-Cvetković R. Failure analysis of carbon steel screws under the service in the presence of corrosion environment. in Journal of the Balkan Tribological Association. 2018;24(2):291-303.
https://hdl.handle.net/21.15107/rcub_technorep_3792 .

Ristić, M., Vasović, Ivana, Alil, A., Obradović, J., Prokić-Cvetković, Radica, "Failure analysis of carbon steel screws under the service in the presence of corrosion environment" in Journal of the Balkan Tribological Association, 24, no. 2 (2018):291-303,
https://hdl.handle.net/21.15107/rcub_technorep_3792 .

TY  - JOUR
AU  - Ristić, Marko
AU  - Radovanović, Ljiljana
AU  - Prokić-Cvetković, Radica
AU  - Otić, Goran
AU  - Perišić, Jasmina
AU  - Vasović, Ivana
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2617
AB  - Ventilation mill for grinding coal is one of the main steam power plants in the system that makes a significant effect on the level of energy efficiency with its work. The aim of this paper is to increase the energy efficiency of thermo power plant Kostolac B by reducing the problem of wear in ventilation mill for coal grinding. The idea of this research is to investigate the optimum hardfacing technologies to increase wear resistance of impact plates in ventilation mill. Before applying hardfacing on impact plates in the exploitation conditions, it is necessary to model test hardfaced samples for determination of the optimal technology and fillermaterial for revitalization. The relative weight loss of the impact plates after 1440 h period of exploitation in real conditions is very small, 5-8%. The application of this approach can reduce the number of possible repairs and extends the period between them, resulting in significant economic effects. Before and after revitalization of ventilationmill is conducted analyzing of failure during the working period. In this paper, we present time of repair of ventilation mills number 22, 23, 24 and 25, the number of repairs before and after revitalization and cost of repairs.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Energy Sources Part B-Economics Planning and Policy
T1  - Increase energy efficiency of thermal power plant Kostolac B by revitalization ventilation mills
EP  - 197
IS  - 2
SP  - 191
VL  - 12
DO  - 10.1080/15567249.2015.1014977
ER  - 

@article{
author = "Ristić, Marko and Radovanović, Ljiljana and Prokić-Cvetković, Radica and Otić, Goran and Perišić, Jasmina and Vasović, Ivana",
year = "2017",
abstract = "Ventilation mill for grinding coal is one of the main steam power plants in the system that makes a significant effect on the level of energy efficiency with its work. The aim of this paper is to increase the energy efficiency of thermo power plant Kostolac B by reducing the problem of wear in ventilation mill for coal grinding. The idea of this research is to investigate the optimum hardfacing technologies to increase wear resistance of impact plates in ventilation mill. Before applying hardfacing on impact plates in the exploitation conditions, it is necessary to model test hardfaced samples for determination of the optimal technology and fillermaterial for revitalization. The relative weight loss of the impact plates after 1440 h period of exploitation in real conditions is very small, 5-8%. The application of this approach can reduce the number of possible repairs and extends the period between them, resulting in significant economic effects. Before and after revitalization of ventilationmill is conducted analyzing of failure during the working period. In this paper, we present time of repair of ventilation mills number 22, 23, 24 and 25, the number of repairs before and after revitalization and cost of repairs.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Energy Sources Part B-Economics Planning and Policy",
title = "Increase energy efficiency of thermal power plant Kostolac B by revitalization ventilation mills",
pages = "197-191",
number = "2",
volume = "12",
doi = "10.1080/15567249.2015.1014977"
}

Ristić, M., Radovanović, L., Prokić-Cvetković, R., Otić, G., Perišić, J.,& Vasović, I.. (2017). Increase energy efficiency of thermal power plant Kostolac B by revitalization ventilation mills. in Energy Sources Part B-Economics Planning and Policy
Taylor & Francis Inc, Philadelphia., 12(2), 191-197.
https://doi.org/10.1080/15567249.2015.1014977

Ristić M, Radovanović L, Prokić-Cvetković R, Otić G, Perišić J, Vasović I. Increase energy efficiency of thermal power plant Kostolac B by revitalization ventilation mills. in Energy Sources Part B-Economics Planning and Policy. 2017;12(2):191-197.
doi:10.1080/15567249.2015.1014977 .

Ristić, Marko, Radovanović, Ljiljana, Prokić-Cvetković, Radica, Otić, Goran, Perišić, Jasmina, Vasović, Ivana, "Increase energy efficiency of thermal power plant Kostolac B by revitalization ventilation mills" in Energy Sources Part B-Economics Planning and Policy, 12, no. 2 (2017):191-197,
https://doi.org/10.1080/15567249.2015.1014977 . .

TY  - JOUR
AU  - Janković, D.
AU  - Maksimović, Stevan M.
AU  - Kozić, Mirko
AU  - Stupar, Slobodan
AU  - Maksimović, Katarina
AU  - Vasović, Ivana
AU  - Maksimović, Mirko S.
PY  - 2017
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2574
AB  - This work focuses on defining loads and fatigue life estimation of helicopter tail rotor blades. The original metal construction of these blades was replaced with a new construction of blades made from composite materials. The subject of this investigation is the precise determination of loads of helicopter composite tail rotor blades together with experimental verification of their fatigue strength. In this research to determine loads of tail rotor blades computational fluid dynamics (CFD) numerical simulations are used. To study the fatigue behavior of composite blades, the blades are here tested under static and fatigue load spectra. For determination of aerodynamic loads of tail rotor blades in this investigation, two computation models are used. In first model, an isolated tail rotor blade is considered. In the second computation model, the complete helicopter is modeled, including fuselage together with main and tail rotor blades. The tail rotor hub is not included in these computational models. To verify the strength of the composite structure of the tail rotor blade, it is tested under the static load and fatigue load spectra. The experimental fatigue test results under the load spectrum are included.
PB  - Asce-Amer Soc Civil Engineers, Reston
T2  - Journal of Aerospace Engineering
T1  - CFD Calculation of Helicopter Tail Rotor Airloads for Fatigue Strength Experiments
IS  - 5
VL  - 30
DO  - 10.1061/(ASCE)AS.1943-5525.0000734
ER  - 

@article{
author = "Janković, D. and Maksimović, Stevan M. and Kozić, Mirko and Stupar, Slobodan and Maksimović, Katarina and Vasović, Ivana and Maksimović, Mirko S.",
year = "2017",
abstract = "This work focuses on defining loads and fatigue life estimation of helicopter tail rotor blades. The original metal construction of these blades was replaced with a new construction of blades made from composite materials. The subject of this investigation is the precise determination of loads of helicopter composite tail rotor blades together with experimental verification of their fatigue strength. In this research to determine loads of tail rotor blades computational fluid dynamics (CFD) numerical simulations are used. To study the fatigue behavior of composite blades, the blades are here tested under static and fatigue load spectra. For determination of aerodynamic loads of tail rotor blades in this investigation, two computation models are used. In first model, an isolated tail rotor blade is considered. In the second computation model, the complete helicopter is modeled, including fuselage together with main and tail rotor blades. The tail rotor hub is not included in these computational models. To verify the strength of the composite structure of the tail rotor blade, it is tested under the static load and fatigue load spectra. The experimental fatigue test results under the load spectrum are included.",
publisher = "Asce-Amer Soc Civil Engineers, Reston",
journal = "Journal of Aerospace Engineering",
title = "CFD Calculation of Helicopter Tail Rotor Airloads for Fatigue Strength Experiments",
number = "5",
volume = "30",
doi = "10.1061/(ASCE)AS.1943-5525.0000734"
}

Janković, D., Maksimović, S. M., Kozić, M., Stupar, S., Maksimović, K., Vasović, I.,& Maksimović, M. S.. (2017). CFD Calculation of Helicopter Tail Rotor Airloads for Fatigue Strength Experiments. in Journal of Aerospace Engineering
Asce-Amer Soc Civil Engineers, Reston., 30(5).
https://doi.org/10.1061/(ASCE)AS.1943-5525.0000734

Janković D, Maksimović SM, Kozić M, Stupar S, Maksimović K, Vasović I, Maksimović MS. CFD Calculation of Helicopter Tail Rotor Airloads for Fatigue Strength Experiments. in Journal of Aerospace Engineering. 2017;30(5).
doi:10.1061/(ASCE)AS.1943-5525.0000734 .

Janković, D., Maksimović, Stevan M., Kozić, Mirko, Stupar, Slobodan, Maksimović, Katarina, Vasović, Ivana, Maksimović, Mirko S., "CFD Calculation of Helicopter Tail Rotor Airloads for Fatigue Strength Experiments" in Journal of Aerospace Engineering, 30, no. 5 (2017),
https://doi.org/10.1061/(ASCE)AS.1943-5525.0000734 . .

TY  - JOUR
AU  - Ristić, M.
AU  - Prokić-Cvetković, Radica
AU  - Katavić, Boris
AU  - Vasović, Ivana
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2124
AB  - This paper presents results of the suction plate surface modification by hardfacing, of the ventilation mill in the Kostolac B power plant. Before applying hardfaced suction plates to exploitation conditions, it is necessary to study model hardfaced samples for determining the optimal tech-nology and filler material for revitalization. Experimental tests of revitalized mill suction plates in real exploitation conditions show that the proposed modification, hardfacing technologies and filler materials give good results. The relative weight loss of the suction plates after 1440 h period of exploitation in real conditions is 1-3%. The application of this approach can reduce the number of possible repairs and extends the period between them, resulting in significant economic effects.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Selecting hardfacing technologies for ventilation mill suction plates and extending its working life
EP  - 180
IS  - 3
SP  - 173
VL  - 15
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2124
ER  - 

@article{
author = "Ristić, M. and Prokić-Cvetković, Radica and Katavić, Boris and Vasović, Ivana",
year = "2015",
abstract = "This paper presents results of the suction plate surface modification by hardfacing, of the ventilation mill in the Kostolac B power plant. Before applying hardfaced suction plates to exploitation conditions, it is necessary to study model hardfaced samples for determining the optimal tech-nology and filler material for revitalization. Experimental tests of revitalized mill suction plates in real exploitation conditions show that the proposed modification, hardfacing technologies and filler materials give good results. The relative weight loss of the suction plates after 1440 h period of exploitation in real conditions is 1-3%. The application of this approach can reduce the number of possible repairs and extends the period between them, resulting in significant economic effects.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Selecting hardfacing technologies for ventilation mill suction plates and extending its working life",
pages = "180-173",
number = "3",
volume = "15",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2124"
}

Ristić, M., Prokić-Cvetković, R., Katavić, B.,& Vasović, I.. (2015). Selecting hardfacing technologies for ventilation mill suction plates and extending its working life. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 15(3), 173-180.
https://hdl.handle.net/21.15107/rcub_machinery_2124

Ristić M, Prokić-Cvetković R, Katavić B, Vasović I. Selecting hardfacing technologies for ventilation mill suction plates and extending its working life. in Structural Integrity and Life. 2015;15(3):173-180.
https://hdl.handle.net/21.15107/rcub_machinery_2124 .

Ristić, M., Prokić-Cvetković, Radica, Katavić, Boris, Vasović, Ivana, "Selecting hardfacing technologies for ventilation mill suction plates and extending its working life" in Structural Integrity and Life, 15, no. 3 (2015):173-180,
https://hdl.handle.net/21.15107/rcub_machinery_2124 .

TY  - JOUR
AU  - Vasović, Ivana
AU  - Maksimović, Stevan M.
AU  - Stamenković, Dragi
AU  - Stupar, Slobodan
AU  - Maksimović, Mirko S.
AU  - Bakić, Gordana
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1864
AB  - This paper presents evaluation fracture mechanics parameters in low pressure turbine components. Critical locations such as keyway and dovetail area are experiencing stress concentration leading to crack initiation. Stress intensity factors were evaluated using the J-Integral approach available within ANSYS software code. The finite element method allowed the prediction of the point of crack initiation and the crack propagation using the orientations of the maximum principal stresses. Special attention in this investigation is focused to develop analytic expressions for stress intensity factors at critical location of low pressure steam turbine disc.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Fracture mechanics analysis of damaged turbine rotor discs using finite element method
EP  - S112
SP  - S107
VL  - 18
DO  - 10.2298/TSCI121107176V
ER  - 

@article{
author = "Vasović, Ivana and Maksimović, Stevan M. and Stamenković, Dragi and Stupar, Slobodan and Maksimović, Mirko S. and Bakić, Gordana",
year = "2014",
abstract = "This paper presents evaluation fracture mechanics parameters in low pressure turbine components. Critical locations such as keyway and dovetail area are experiencing stress concentration leading to crack initiation. Stress intensity factors were evaluated using the J-Integral approach available within ANSYS software code. The finite element method allowed the prediction of the point of crack initiation and the crack propagation using the orientations of the maximum principal stresses. Special attention in this investigation is focused to develop analytic expressions for stress intensity factors at critical location of low pressure steam turbine disc.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Fracture mechanics analysis of damaged turbine rotor discs using finite element method",
pages = "S112-S107",
volume = "18",
doi = "10.2298/TSCI121107176V"
}

Vasović, I., Maksimović, S. M., Stamenković, D., Stupar, S., Maksimović, M. S.,& Bakić, G.. (2014). Fracture mechanics analysis of damaged turbine rotor discs using finite element method. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 18, S107-S112.
https://doi.org/10.2298/TSCI121107176V

Vasović I, Maksimović SM, Stamenković D, Stupar S, Maksimović MS, Bakić G. Fracture mechanics analysis of damaged turbine rotor discs using finite element method. in Thermal Science. 2014;18:S107-S112.
doi:10.2298/TSCI121107176V .

Vasović, Ivana, Maksimović, Stevan M., Stamenković, Dragi, Stupar, Slobodan, Maksimović, Mirko S., Bakić, Gordana, "Fracture mechanics analysis of damaged turbine rotor discs using finite element method" in Thermal Science, 18 (2014):S107-S112,
https://doi.org/10.2298/TSCI121107176V . .

TY  - JOUR
AU  - Vasović, Ivana
AU  - Maksimović, Stevan M.
AU  - Maksimović, Katarina
AU  - Stupar, Slobodan
AU  - Bakić, Gordana
AU  - Maksimović, Mirko S.
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1863
AB  - An attention in this paper is focused on the stress analysis and the determination of fracture mechanics parameters in low pressure (LP) turbine rotor discs and on developing analytic expressions for stress intensity factors at the critical location of LP steam turbine disc. Critical locations such as keyway and dovetail area experienced stress concentration leading to crack initiation. Major concerns for the power industry are determining the critical locations with one side and fracture mechanics parameters with the other side. For determination of the critical locations in LP turbine rotor disc conventional finite elements are used here. For this initial crack length and during crack growth it is necessary to determine SIFs. In fatigue crack growth process it is necessary to have analytic formulas for the stress intensity factor. To determine analytic formula for stress intensity factor (SIF) of cracked turbine rotor disc special singular finite elements are used. Using discrete values of SIFs which correspond to various crack lengths analytic formula of SIF in polynomial forms is derived here. For determination of SIF in this paper, combined J-integral approach and singular finite elements are used. The interaction of mechanical and thermal effects was correlated in terms of the fracture toughness.
PB  - Hindawi Ltd, London
T2  - Mathematical Problems in Engineering
T1  - Determination of Stress Intensity Factors in Low Pressure Turbine Rotor Discs
VL  - 2014
DO  - 10.1155/2014/304638
ER  - 

@article{
author = "Vasović, Ivana and Maksimović, Stevan M. and Maksimović, Katarina and Stupar, Slobodan and Bakić, Gordana and Maksimović, Mirko S.",
year = "2014",
abstract = "An attention in this paper is focused on the stress analysis and the determination of fracture mechanics parameters in low pressure (LP) turbine rotor discs and on developing analytic expressions for stress intensity factors at the critical location of LP steam turbine disc. Critical locations such as keyway and dovetail area experienced stress concentration leading to crack initiation. Major concerns for the power industry are determining the critical locations with one side and fracture mechanics parameters with the other side. For determination of the critical locations in LP turbine rotor disc conventional finite elements are used here. For this initial crack length and during crack growth it is necessary to determine SIFs. In fatigue crack growth process it is necessary to have analytic formulas for the stress intensity factor. To determine analytic formula for stress intensity factor (SIF) of cracked turbine rotor disc special singular finite elements are used. Using discrete values of SIFs which correspond to various crack lengths analytic formula of SIF in polynomial forms is derived here. For determination of SIF in this paper, combined J-integral approach and singular finite elements are used. The interaction of mechanical and thermal effects was correlated in terms of the fracture toughness.",
publisher = "Hindawi Ltd, London",
journal = "Mathematical Problems in Engineering",
title = "Determination of Stress Intensity Factors in Low Pressure Turbine Rotor Discs",
volume = "2014",
doi = "10.1155/2014/304638"
}

Vasović, I., Maksimović, S. M., Maksimović, K., Stupar, S., Bakić, G.,& Maksimović, M. S.. (2014). Determination of Stress Intensity Factors in Low Pressure Turbine Rotor Discs. in Mathematical Problems in Engineering
Hindawi Ltd, London., 2014.
https://doi.org/10.1155/2014/304638

Vasović I, Maksimović SM, Maksimović K, Stupar S, Bakić G, Maksimović MS. Determination of Stress Intensity Factors in Low Pressure Turbine Rotor Discs. in Mathematical Problems in Engineering. 2014;2014.
doi:10.1155/2014/304638 .

Vasović, Ivana, Maksimović, Stevan M., Maksimović, Katarina, Stupar, Slobodan, Bakić, Gordana, Maksimović, Mirko S., "Determination of Stress Intensity Factors in Low Pressure Turbine Rotor Discs" in Mathematical Problems in Engineering, 2014 (2014),
https://doi.org/10.1155/2014/304638 . .

TY  - JOUR
AU  - Stamenković, Dragi
AU  - Maksimović, Katarina
AU  - Nikolić-Stanojević, Vera
AU  - Maksimović, Stevan M.
AU  - Stupar, Slobodan
AU  - Vasović, Ivana
PY  - 2010
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1069
AB  - This work considers the analytical/numerical methods and procedures for obtaining the stress intensity factors and for predicting the fatigue crack growth life of notched structural components. Many efforts have been made during the past two decades to evaluate the stress intensity factor for corner cracks and for through cracks emanating from fastener holes. A variety of methods have been used to estimate the stress intensity factor (SIF), values, such as approximate analytical methods, finite element method (FEM), finite element alternating, weight function, photo elasticity and fatigue tests. In this paper the analytic/numerical methods and procedures were used to obtain SIF, and predict the fatigue crack growth life for cracks at attachment lugs. Single through crack in the attachment lug analysis is considered. For this purpose analytic expressions are evaluated for SIF of cracked lug structures. For validation of the analytic stress intensity factors of cracked lugs, FEM with singular finite elements is used. Good agreement between computation and experimental results for fatigue life of aircraft cracked lugs was obtained. To determine crack trajectory of cracked structural components under mixed modes conventional singular finite elements and X-FEM are used.
PB  - Assoc Mechanical Engineers Technicians Slovenia, Ljubljana
T2  - Strojniski Vestnik-Journal of Mechanical Engineering
T1  - Fatigue Life Estimation of Notched Structural Components
EP  - 852
IS  - 12
SP  - 846
VL  - 56
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1069
ER  - 

@article{
author = "Stamenković, Dragi and Maksimović, Katarina and Nikolić-Stanojević, Vera and Maksimović, Stevan M. and Stupar, Slobodan and Vasović, Ivana",
year = "2010",
abstract = "This work considers the analytical/numerical methods and procedures for obtaining the stress intensity factors and for predicting the fatigue crack growth life of notched structural components. Many efforts have been made during the past two decades to evaluate the stress intensity factor for corner cracks and for through cracks emanating from fastener holes. A variety of methods have been used to estimate the stress intensity factor (SIF), values, such as approximate analytical methods, finite element method (FEM), finite element alternating, weight function, photo elasticity and fatigue tests. In this paper the analytic/numerical methods and procedures were used to obtain SIF, and predict the fatigue crack growth life for cracks at attachment lugs. Single through crack in the attachment lug analysis is considered. For this purpose analytic expressions are evaluated for SIF of cracked lug structures. For validation of the analytic stress intensity factors of cracked lugs, FEM with singular finite elements is used. Good agreement between computation and experimental results for fatigue life of aircraft cracked lugs was obtained. To determine crack trajectory of cracked structural components under mixed modes conventional singular finite elements and X-FEM are used.",
publisher = "Assoc Mechanical Engineers Technicians Slovenia, Ljubljana",
journal = "Strojniski Vestnik-Journal of Mechanical Engineering",
title = "Fatigue Life Estimation of Notched Structural Components",
pages = "852-846",
number = "12",
volume = "56",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1069"
}

Stamenković, D., Maksimović, K., Nikolić-Stanojević, V., Maksimović, S. M., Stupar, S.,& Vasović, I.. (2010). Fatigue Life Estimation of Notched Structural Components. in Strojniski Vestnik-Journal of Mechanical Engineering
Assoc Mechanical Engineers Technicians Slovenia, Ljubljana., 56(12), 846-852.
https://hdl.handle.net/21.15107/rcub_machinery_1069

Stamenković D, Maksimović K, Nikolić-Stanojević V, Maksimović SM, Stupar S, Vasović I. Fatigue Life Estimation of Notched Structural Components. in Strojniski Vestnik-Journal of Mechanical Engineering. 2010;56(12):846-852.
https://hdl.handle.net/21.15107/rcub_machinery_1069 .

Stamenković, Dragi, Maksimović, Katarina, Nikolić-Stanojević, Vera, Maksimović, Stevan M., Stupar, Slobodan, Vasović, Ivana, "Fatigue Life Estimation of Notched Structural Components" in Strojniski Vestnik-Journal of Mechanical Engineering, 56, no. 12 (2010):846-852,
https://hdl.handle.net/21.15107/rcub_machinery_1069 .

TY  - CONF
AU  - Tanasković, Jovan
AU  - Lučanin, Vojkan
AU  - Vasović, Ivana
AU  - Golubović, Snežana D.
PY  - 2009
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/904
PB  - Institute of Mechanical Engineering
C3  - 26th Danubia-Adria Symposium on Advances in Experimental Mechanics
T1  - Experimental research of a collision energy absorber of a passenger train
EP  - 226
SP  - 225
UR  - https://hdl.handle.net/21.15107/rcub_machinery_904
ER  - 

@conference{
author = "Tanasković, Jovan and Lučanin, Vojkan and Vasović, Ivana and Golubović, Snežana D.",
year = "2009",
publisher = "Institute of Mechanical Engineering",
journal = "26th Danubia-Adria Symposium on Advances in Experimental Mechanics",
title = "Experimental research of a collision energy absorber of a passenger train",
pages = "226-225",
url = "https://hdl.handle.net/21.15107/rcub_machinery_904"
}

Tanasković, J., Lučanin, V., Vasović, I.,& Golubović, S. D.. (2009). Experimental research of a collision energy absorber of a passenger train. in 26th Danubia-Adria Symposium on Advances in Experimental Mechanics
Institute of Mechanical Engineering., 225-226.
https://hdl.handle.net/21.15107/rcub_machinery_904

Tanasković J, Lučanin V, Vasović I, Golubović SD. Experimental research of a collision energy absorber of a passenger train. in 26th Danubia-Adria Symposium on Advances in Experimental Mechanics. 2009;:225-226.
https://hdl.handle.net/21.15107/rcub_machinery_904 .

Tanasković, Jovan, Lučanin, Vojkan, Vasović, Ivana, Golubović, Snežana D., "Experimental research of a collision energy absorber of a passenger train" in 26th Danubia-Adria Symposium on Advances in Experimental Mechanics (2009):225-226,
https://hdl.handle.net/21.15107/rcub_machinery_904 .