TY  - JOUR
AU  - Kutin, Marina
AU  - Prokolab, Milan
AU  - Ristić, Marko
AU  - Alil, Ana
AU  - Gligorijević, Bojan
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2452
AB  - This paper analysis the cause's dynamically loaded screws failure, using the structural analysis of mechanical properties and numerical simulation. The comparison with the new unbroken screws, which were not in use, has been done to determine the condition of the broken (dynamically loaded) ones. Analysis was performed, according to the following test methods and activities: non-destructive testing, visual inspection, radiographic testing, chemical analysis of screws sample materials, mechanical properties of screws' materials. Structure analysis of screws materials: Testing macrostructure (light optical microscope, SEM-EDS) examination of the microstructure (light optical microscope, SEM-EDS), fractographic examination. Numerical simulation of the stress state of the dynamically loaded screws was done in CATIA software package, and it was identical to the bolt loads, during service exploitation. The results between numerical simulation and structural analysis were quite coinciding - the difference is about 8-10%, which is pretty good for these types of experiments. Such an overlap, says that the stress value at the very screws is reliable and give us a true picture of loadings. Structural mechanical tests have shown a very pronounced effect of dynamic loads, that large shear stress shows also as a good agreement, where between the stresses, obtained by numerical simulation and structural mechanical testing. Analysing the results, obtained by numerical simulation and structural mechanical testing were performed with the redistribution of critical stresses, and proposal for the structure optimization. The comparative analysis methods have been provided the precise prediction of fracture appearance and made possible to define the preventive measures.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
T2  - Structural Integrity of Welded Structures
T1  - Determination and analysis of the dynamic loaded screws by structural analysis, fractography and numerical simulation
EP  - 98
SP  - 87
VL  - 814
DO  - 10.4028/www.scientific.net/AMR.814.87
ER  - 

@article{
author = "Kutin, Marina and Prokolab, Milan and Ristić, Marko and Alil, Ana and Gligorijević, Bojan",
year = "2013",
abstract = "This paper analysis the cause's dynamically loaded screws failure, using the structural analysis of mechanical properties and numerical simulation. The comparison with the new unbroken screws, which were not in use, has been done to determine the condition of the broken (dynamically loaded) ones. Analysis was performed, according to the following test methods and activities: non-destructive testing, visual inspection, radiographic testing, chemical analysis of screws sample materials, mechanical properties of screws' materials. Structure analysis of screws materials: Testing macrostructure (light optical microscope, SEM-EDS) examination of the microstructure (light optical microscope, SEM-EDS), fractographic examination. Numerical simulation of the stress state of the dynamically loaded screws was done in CATIA software package, and it was identical to the bolt loads, during service exploitation. The results between numerical simulation and structural analysis were quite coinciding - the difference is about 8-10%, which is pretty good for these types of experiments. Such an overlap, says that the stress value at the very screws is reliable and give us a true picture of loadings. Structural mechanical tests have shown a very pronounced effect of dynamic loads, that large shear stress shows also as a good agreement, where between the stresses, obtained by numerical simulation and structural mechanical testing. Analysing the results, obtained by numerical simulation and structural mechanical testing were performed with the redistribution of critical stresses, and proposal for the structure optimization. The comparative analysis methods have been provided the precise prediction of fracture appearance and made possible to define the preventive measures.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Structural Integrity of Welded Structures",
title = "Determination and analysis of the dynamic loaded screws by structural analysis, fractography and numerical simulation",
pages = "98-87",
volume = "814",
doi = "10.4028/www.scientific.net/AMR.814.87"
}

Kutin, M., Prokolab, M., Ristić, M., Alil, A.,& Gligorijević, B.. (2013). Determination and analysis of the dynamic loaded screws by structural analysis, fractography and numerical simulation. in Structural Integrity of Welded Structures
Trans Tech Publications Ltd, Durnten-Zurich., 814, 87-98.
https://doi.org/10.4028/www.scientific.net/AMR.814.87

Kutin M, Prokolab M, Ristić M, Alil A, Gligorijević B. Determination and analysis of the dynamic loaded screws by structural analysis, fractography and numerical simulation. in Structural Integrity of Welded Structures. 2013;814:87-98.
doi:10.4028/www.scientific.net/AMR.814.87 .

Kutin, Marina, Prokolab, Milan, Ristić, Marko, Alil, Ana, Gligorijević, Bojan, "Determination and analysis of the dynamic loaded screws by structural analysis, fractography and numerical simulation" in Structural Integrity of Welded Structures, 814 (2013):87-98,
https://doi.org/10.4028/www.scientific.net/AMR.814.87 . .

TY  - JOUR
AU  - Budimir, Stevan
AU  - Alil, Ana
AU  - Ristić, Marko
AU  - Kočić, Milorad
AU  - Katavić, Boris T.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6215
PB  - The Bulletin of the National R&D Institute for Welding and Material Testing - ISIM Timişoara, Romania
T2  - The journal Welding and Material Testing / Sudarea şi Încercarea Materialelor - Bulletin of the National Research
T1  - Analysis of compressor valves bolts failure
EP  - 16
IS  - 4
SP  - 13
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6215
ER  - 

@article{
author = "Budimir, Stevan and Alil, Ana and Ristić, Marko and Kočić, Milorad and Katavić, Boris T.",
year = "2013",
publisher = "The Bulletin of the National R&D Institute for Welding and Material Testing - ISIM Timişoara, Romania",
journal = "The journal Welding and Material Testing / Sudarea şi Încercarea Materialelor - Bulletin of the National Research",
title = "Analysis of compressor valves bolts failure",
pages = "16-13",
number = "4",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6215"
}

Budimir, S., Alil, A., Ristić, M., Kočić, M.,& Katavić, B. T.. (2013). Analysis of compressor valves bolts failure. in The journal Welding and Material Testing / Sudarea şi Încercarea Materialelor - Bulletin of the National Research
The Bulletin of the National R&D Institute for Welding and Material Testing - ISIM Timişoara, Romania.(4), 13-16.
https://hdl.handle.net/21.15107/rcub_technorep_6215

Budimir S, Alil A, Ristić M, Kočić M, Katavić BT. Analysis of compressor valves bolts failure. in The journal Welding and Material Testing / Sudarea şi Încercarea Materialelor - Bulletin of the National Research. 2013;(4):13-16.
https://hdl.handle.net/21.15107/rcub_technorep_6215 .

Budimir, Stevan, Alil, Ana, Ristić, Marko, Kočić, Milorad, Katavić, Boris T., "Analysis of compressor valves bolts failure" in The journal Welding and Material Testing / Sudarea şi Încercarea Materialelor - Bulletin of the National Research, no. 4 (2013):13-16,
https://hdl.handle.net/21.15107/rcub_technorep_6215 .

TY  - CONF
AU  - Alil, Ana
AU  - Jegdić, Bore V.
AU  - Bobić, Biljana
AU  - Ristić, Marko
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6102
AB  - The variation of factors such as the amount of alloying elements in solid solution, thermal and
thermo-mechanical treatments changes the corrosion tendency in the Al-Zn-Mg-Cu alloy. The measurements of
electrical conductivity enabled the estimation of the structural state of the alloy, i.e. the type and the degree of
precipitation.The corrosion behaviour was examined through three electrochemical methods(Ecorr., polarization
measurements, EIS).The measurement of corrosion potentials (Ecorr.) gave information about the distribution of
the alloying elements between the solid solution and the precipitation phases. The polarization measurements
have shown a more positive value of pitting potential (Epit.) and a greater resistance to corrosionfor the two-step
aged alloy. The electrochemical impedance spectroscopy (EIS) has also shown that the two-step aged alloy has
better corrosion propertiescompared to the one-step aged alloy.The fracture mechanics (FM) method wasused for
SCC testing and hasshown that the alloy after two-step precipitation hardening is significantly more resistant to
SCC. The obtained results enable a greaterinsight into the effects of both heat treatment and alloying elements,
primarily copper, on the corrosion resistance of the alloy.
PB  - Technical faculty Mihajlo Pupin, Zrenjanin, University of Novi Sad, Srbija
C3  - 2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012
T1  - CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS
EP  - 128
SP  - 121
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6102
ER  - 

@conference{
author = "Alil, Ana and Jegdić, Bore V. and Bobić, Biljana and Ristić, Marko",
year = "2012",
abstract = "The variation of factors such as the amount of alloying elements in solid solution, thermal and
thermo-mechanical treatments changes the corrosion tendency in the Al-Zn-Mg-Cu alloy. The measurements of
electrical conductivity enabled the estimation of the structural state of the alloy, i.e. the type and the degree of
precipitation.The corrosion behaviour was examined through three electrochemical methods(Ecorr., polarization
measurements, EIS).The measurement of corrosion potentials (Ecorr.) gave information about the distribution of
the alloying elements between the solid solution and the precipitation phases. The polarization measurements
have shown a more positive value of pitting potential (Epit.) and a greater resistance to corrosionfor the two-step
aged alloy. The electrochemical impedance spectroscopy (EIS) has also shown that the two-step aged alloy has
better corrosion propertiescompared to the one-step aged alloy.The fracture mechanics (FM) method wasused for
SCC testing and hasshown that the alloy after two-step precipitation hardening is significantly more resistant to
SCC. The obtained results enable a greaterinsight into the effects of both heat treatment and alloying elements,
primarily copper, on the corrosion resistance of the alloy.",
publisher = "Technical faculty Mihajlo Pupin, Zrenjanin, University of Novi Sad, Srbija",
journal = "2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012",
title = "CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS",
pages = "128-121",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6102"
}

Alil, A., Jegdić, B. V., Bobić, B.,& Ristić, M.. (2012). CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS. in 2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012
Technical faculty Mihajlo Pupin, Zrenjanin, University of Novi Sad, Srbija., 121-128.
https://hdl.handle.net/21.15107/rcub_technorep_6102

Alil A, Jegdić BV, Bobić B, Ristić M. CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS. in 2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012. 2012;:121-128.
https://hdl.handle.net/21.15107/rcub_technorep_6102 .

Alil, Ana, Jegdić, Bore V., Bobić, Biljana, Ristić, Marko, "CORROSION BEHAVIOUR OF AN Al-Zn-Mg-Cu ALLOY AFTER DIFFERENT HEAT TREATMENTS" in 2nd INTERNATIONAL CONFERENCE Industrial Engineering and Environmental Protection 2012 (2012):121-128,
https://hdl.handle.net/21.15107/rcub_technorep_6102 .

TY  - CONF
AU  - Stanković, Miloš
AU  - Ristić, Miloš
AU  - Alil, Ana
AU  - Ristić, Marko
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6100
AB  - In this paper it is presented reparation of steel construction of selfpropelled
crane telescopic boom by welding. By doing visual inspection of
self-propelled crane, it is noticed numerous cracks and deformations at the
outer and inner surface of steel construction at base metal and weld, both.
Based on results of examination, it is decided to do reparation by welding
in order to reduce influence of residual stresses.
PB  - University of Belgrade, Faculty of Mechanical Engineering, Srbija
C3  - Proceedings of the XXth International Conference on Material Handling, Construction and Logistics
T1  - Reparation of Steel Construction of Vehicle-mounted Self-propelled Crane's Telescopic Boom
EP  - 312
SP  - 309
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6100
ER  - 

@conference{
author = "Stanković, Miloš and Ristić, Miloš and Alil, Ana and Ristić, Marko",
year = "2012",
abstract = "In this paper it is presented reparation of steel construction of selfpropelled
crane telescopic boom by welding. By doing visual inspection of
self-propelled crane, it is noticed numerous cracks and deformations at the
outer and inner surface of steel construction at base metal and weld, both.
Based on results of examination, it is decided to do reparation by welding
in order to reduce influence of residual stresses.",
publisher = "University of Belgrade, Faculty of Mechanical Engineering, Srbija",
journal = "Proceedings of the XXth International Conference on Material Handling, Construction and Logistics",
title = "Reparation of Steel Construction of Vehicle-mounted Self-propelled Crane's Telescopic Boom",
pages = "312-309",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6100"
}

Stanković, M., Ristić, M., Alil, A.,& Ristić, M.. (2012). Reparation of Steel Construction of Vehicle-mounted Self-propelled Crane's Telescopic Boom. in Proceedings of the XXth International Conference on Material Handling, Construction and Logistics
University of Belgrade, Faculty of Mechanical Engineering, Srbija., 309-312.
https://hdl.handle.net/21.15107/rcub_technorep_6100

Stanković M, Ristić M, Alil A, Ristić M. Reparation of Steel Construction of Vehicle-mounted Self-propelled Crane's Telescopic Boom. in Proceedings of the XXth International Conference on Material Handling, Construction and Logistics. 2012;:309-312.
https://hdl.handle.net/21.15107/rcub_technorep_6100 .

Stanković, Miloš, Ristić, Miloš, Alil, Ana, Ristić, Marko, "Reparation of Steel Construction of Vehicle-mounted Self-propelled Crane's Telescopic Boom" in Proceedings of the XXth International Conference on Material Handling, Construction and Logistics (2012):309-312,
https://hdl.handle.net/21.15107/rcub_technorep_6100 .

TY  - JOUR
AU  - Ristić, Marko
AU  - Gligorijević, Bojan R.
AU  - Alil, Ana
AU  - Katavić, Boris T.
AU  - Kutin, Marina
AU  - Jovanović, Dragan
AU  - Budimir, Stevan
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6233
PB  - UNIVERSITY OF TIMISOARA
T2  - SCIENTIFIC BULLETIN OF THE „POLITEHNICA”
T1  - Studies of the Properties of Different Hard Coatings Resistant to Wear
EP  - 59
IS  - 71
SP  - 53
VL  - 57
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6233
ER  - 

@article{
author = "Ristić, Marko and Gligorijević, Bojan R. and Alil, Ana and Katavić, Boris T. and Kutin, Marina and Jovanović, Dragan and Budimir, Stevan",
year = "2012",
publisher = "UNIVERSITY OF TIMISOARA",
journal = "SCIENTIFIC BULLETIN OF THE „POLITEHNICA”",
title = "Studies of the Properties of Different Hard Coatings Resistant to Wear",
pages = "59-53",
number = "71",
volume = "57",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6233"
}

Ristić, M., Gligorijević, B. R., Alil, A., Katavić, B. T., Kutin, M., Jovanović, D.,& Budimir, S.. (2012). Studies of the Properties of Different Hard Coatings Resistant to Wear. in SCIENTIFIC BULLETIN OF THE „POLITEHNICA”
UNIVERSITY OF TIMISOARA., 57(71), 53-59.
https://hdl.handle.net/21.15107/rcub_technorep_6233

Ristić M, Gligorijević BR, Alil A, Katavić BT, Kutin M, Jovanović D, Budimir S. Studies of the Properties of Different Hard Coatings Resistant to Wear. in SCIENTIFIC BULLETIN OF THE „POLITEHNICA”. 2012;57(71):53-59.
https://hdl.handle.net/21.15107/rcub_technorep_6233 .

Ristić, Marko, Gligorijević, Bojan R., Alil, Ana, Katavić, Boris T., Kutin, Marina, Jovanović, Dragan, Budimir, Stevan, "Studies of the Properties of Different Hard Coatings Resistant to Wear" in SCIENTIFIC BULLETIN OF THE „POLITEHNICA”, 57, no. 71 (2012):53-59,
https://hdl.handle.net/21.15107/rcub_technorep_6233 .

TY  - JOUR
AU  - Alil, Ana
AU  - Ristić, Marko
AU  - Stanković, Miloš
AU  - Ristić, Miloš
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6209
PB  - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
T2  - Zavarivanje i zavarene konstrukcije
T1  - Sanacija čelične konstrukcije strele samohodne autodizalice TADAHO TL 200 II/K Repair of steel construction on truck-mounted crane TADAHO TL 200 II/K
EP  - 174
IS  - 4
SP  - 169
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6209
ER  - 

@article{
author = "Alil, Ana and Ristić, Marko and Stanković, Miloš and Ristić, Miloš",
year = "2012",
publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd",
journal = "Zavarivanje i zavarene konstrukcije",
title = "Sanacija čelične konstrukcije strele samohodne autodizalice TADAHO TL 200 II/K Repair of steel construction on truck-mounted crane TADAHO TL 200 II/K",
pages = "174-169",
number = "4",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6209"
}

Alil, A., Ristić, M., Stanković, M.,& Ristić, M.. (2012). Sanacija čelične konstrukcije strele samohodne autodizalice TADAHO TL 200 II/K Repair of steel construction on truck-mounted crane TADAHO TL 200 II/K. in Zavarivanje i zavarene konstrukcije
DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd.(4), 169-174.
https://hdl.handle.net/21.15107/rcub_technorep_6209

Alil A, Ristić M, Stanković M, Ristić M. Sanacija čelične konstrukcije strele samohodne autodizalice TADAHO TL 200 II/K Repair of steel construction on truck-mounted crane TADAHO TL 200 II/K. in Zavarivanje i zavarene konstrukcije. 2012;(4):169-174.
https://hdl.handle.net/21.15107/rcub_technorep_6209 .

Alil, Ana, Ristić, Marko, Stanković, Miloš, Ristić, Miloš, "Sanacija čelične konstrukcije strele samohodne autodizalice TADAHO TL 200 II/K Repair of steel construction on truck-mounted crane TADAHO TL 200 II/K" in Zavarivanje i zavarene konstrukcije, no. 4 (2012):169-174,
https://hdl.handle.net/21.15107/rcub_technorep_6209 .

TY  - JOUR
AU  - Kutin, Marina
AU  - Radosavljević, Miroslav
AU  - Vasović, Ivana
AU  - Ristić, Marko
AU  - Alil, Ana
AU  - Prokolab, Milan
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6217
PB  - The Bulletin of the National R&D Institute for Welding and Material Testing - ISIM Timişoara, Romania
T2  - Welding and Material Testing
T1  - Using the numerical simulations and comparative diagnostic methods to optimize the product
EP  - 9
IS  - 4
SP  - 3
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6217
ER  - 

@article{
author = "Kutin, Marina and Radosavljević, Miroslav and Vasović, Ivana and Ristić, Marko and Alil, Ana and Prokolab, Milan",
year = "2012",
publisher = "The Bulletin of the National R&D Institute for Welding and Material Testing - ISIM Timişoara, Romania",
journal = "Welding and Material Testing",
title = "Using the numerical simulations and comparative diagnostic methods to optimize the product",
pages = "9-3",
number = "4",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6217"
}

Kutin, M., Radosavljević, M., Vasović, I., Ristić, M., Alil, A.,& Prokolab, M.. (2012). Using the numerical simulations and comparative diagnostic methods to optimize the product. in Welding and Material Testing
The Bulletin of the National R&D Institute for Welding and Material Testing - ISIM Timişoara, Romania.(4), 3-9.
https://hdl.handle.net/21.15107/rcub_technorep_6217

Kutin M, Radosavljević M, Vasović I, Ristić M, Alil A, Prokolab M. Using the numerical simulations and comparative diagnostic methods to optimize the product. in Welding and Material Testing. 2012;(4):3-9.
https://hdl.handle.net/21.15107/rcub_technorep_6217 .

Kutin, Marina, Radosavljević, Miroslav, Vasović, Ivana, Ristić, Marko, Alil, Ana, Prokolab, Milan, "Using the numerical simulations and comparative diagnostic methods to optimize the product" in Welding and Material Testing, no. 4 (2012):3-9,
https://hdl.handle.net/21.15107/rcub_technorep_6217 .

TY  - JOUR
AU  - Kutin, Marina
AU  - Radosavljević, Miroslav
AU  - Vasović, Ivana
AU  - Ristić, Marko
AU  - Alil, Ana
AU  - Prokolab, Milan
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6234
PB  - University of Timisoara, Transactions on Mechanics
T2  - Bulletin of the „POLITEHNICA“
T1  - Using the Numerical Simulations and Comparative Diagnostic Methods to Optimize the Product
EP  - 40
IS  - 71
SP  - 31
VL  - 57
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6234
ER  - 

@article{
author = "Kutin, Marina and Radosavljević, Miroslav and Vasović, Ivana and Ristić, Marko and Alil, Ana and Prokolab, Milan",
year = "2012",
publisher = "University of Timisoara, Transactions on Mechanics",
journal = "Bulletin of the „POLITEHNICA“",
title = "Using the Numerical Simulations and Comparative Diagnostic Methods to Optimize the Product",
pages = "40-31",
number = "71",
volume = "57",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6234"
}

Kutin, M., Radosavljević, M., Vasović, I., Ristić, M., Alil, A.,& Prokolab, M.. (2012). Using the Numerical Simulations and Comparative Diagnostic Methods to Optimize the Product. in Bulletin of the „POLITEHNICA“
University of Timisoara, Transactions on Mechanics., 57(71), 31-40.
https://hdl.handle.net/21.15107/rcub_technorep_6234

Kutin M, Radosavljević M, Vasović I, Ristić M, Alil A, Prokolab M. Using the Numerical Simulations and Comparative Diagnostic Methods to Optimize the Product. in Bulletin of the „POLITEHNICA“. 2012;57(71):31-40.
https://hdl.handle.net/21.15107/rcub_technorep_6234 .

Kutin, Marina, Radosavljević, Miroslav, Vasović, Ivana, Ristić, Marko, Alil, Ana, Prokolab, Milan, "Using the Numerical Simulations and Comparative Diagnostic Methods to Optimize the Product" in Bulletin of the „POLITEHNICA“, 57, no. 71 (2012):31-40,
https://hdl.handle.net/21.15107/rcub_technorep_6234 .

TY  - CONF
AU  - Alil, Ana
AU  - Gligorijević, Bojan R.
AU  - Prvulović, Mirjana
AU  - Budimir, Stevan
AU  - Ristić, Marko
AU  - Prokolab, Milan
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6143
AB  - The aim was to investigate the cause of failure of as-received ultra-high strength steel springs,
which were deposite-coated. The qualitative analysis of surrounding environment was performed.
Springs were visually and radiographically examined. Their chemical composition was determined
using spectrophotometer, primary and secondary structure by use of bright-field reflected light
microscope with vertical illumination source, and fracture mechanism by scanning electron
microscope with energy dispersive system. Macro-hardness measurements were employed, also.
The phases present in deposite were identified using X-ray Powder Difractometry and Electron
Microprobe analysis. The safety valve springs failure is caused probably by corrosion-assisted
process with presence of overloading.
PB  - Materials Research Society of Serbia, Srbija
C3  - 10th Young Researchers' Conference Materials Sciences and Engineering
T1  - Assessment of Safety Valve Springs Failure
SP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6143
ER  - 

@conference{
author = "Alil, Ana and Gligorijević, Bojan R. and Prvulović, Mirjana and Budimir, Stevan and Ristić, Marko and Prokolab, Milan",
year = "2011",
abstract = "The aim was to investigate the cause of failure of as-received ultra-high strength steel springs,
which were deposite-coated. The qualitative analysis of surrounding environment was performed.
Springs were visually and radiographically examined. Their chemical composition was determined
using spectrophotometer, primary and secondary structure by use of bright-field reflected light
microscope with vertical illumination source, and fracture mechanism by scanning electron
microscope with energy dispersive system. Macro-hardness measurements were employed, also.
The phases present in deposite were identified using X-ray Powder Difractometry and Electron
Microprobe analysis. The safety valve springs failure is caused probably by corrosion-assisted
process with presence of overloading.",
publisher = "Materials Research Society of Serbia, Srbija",
journal = "10th Young Researchers' Conference Materials Sciences and Engineering",
title = "Assessment of Safety Valve Springs Failure",
pages = "42",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6143"
}

Alil, A., Gligorijević, B. R., Prvulović, M., Budimir, S., Ristić, M.,& Prokolab, M.. (2011). Assessment of Safety Valve Springs Failure. in 10th Young Researchers' Conference Materials Sciences and Engineering
Materials Research Society of Serbia, Srbija., 42.
https://hdl.handle.net/21.15107/rcub_technorep_6143

Alil A, Gligorijević BR, Prvulović M, Budimir S, Ristić M, Prokolab M. Assessment of Safety Valve Springs Failure. in 10th Young Researchers' Conference Materials Sciences and Engineering. 2011;:42.
https://hdl.handle.net/21.15107/rcub_technorep_6143 .

Alil, Ana, Gligorijević, Bojan R., Prvulović, Mirjana, Budimir, Stevan, Ristić, Marko, Prokolab, Milan, "Assessment of Safety Valve Springs Failure" in 10th Young Researchers' Conference Materials Sciences and Engineering (2011):42,
https://hdl.handle.net/21.15107/rcub_technorep_6143 .

TY  - CONF
AU  - Prvulović, Mirjana
AU  - Ristić, Marko
AU  - Prokolab, Milan
AU  - Kočić, Milorad
AU  - Alil, Ana
AU  - Milutinović, Zlatan R.
AU  - Budimir, Stevan
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6142
AB  - In the paper is presented the possibility of determination thermal conductivity for the
insulation materials, which are used in the tanks for liquid carbon dioxide, in situ. For this
purpose, was developed the mathematical model for description of the pressure changes in
function of the ambient conditions and storage time. The application software was developed
also for computation of the pressure increase two-phase mixture in tank, relating to the time, and
the thermal conductivity determination of the insulating material. Verification of the program
was done in function of exploitation incoming data. The numerical simulations of the pressure
increase are done for various degrease of tank compliance. The influence of the ambient
conditions is expressed by the heat transfer fluid in tank and the environment. Used incoming
data are the temperature profile and sun heat flux characteristic for Serbia, in summer time.
PB  - Materials Research Society of Serbia, Crna Gora
C3  - YUCOMAT 2011
T1  - DETERMINATION OF THERMAL CONDUCTIVITY OF THE INSULATION MATERIALS USING NUMERICAL CALCULATION OF THE PRESSURE INCREASE
SP  - 137
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6142
ER  - 

@conference{
author = "Prvulović, Mirjana and Ristić, Marko and Prokolab, Milan and Kočić, Milorad and Alil, Ana and Milutinović, Zlatan R. and Budimir, Stevan",
year = "2011",
abstract = "In the paper is presented the possibility of determination thermal conductivity for the
insulation materials, which are used in the tanks for liquid carbon dioxide, in situ. For this
purpose, was developed the mathematical model for description of the pressure changes in
function of the ambient conditions and storage time. The application software was developed
also for computation of the pressure increase two-phase mixture in tank, relating to the time, and
the thermal conductivity determination of the insulating material. Verification of the program
was done in function of exploitation incoming data. The numerical simulations of the pressure
increase are done for various degrease of tank compliance. The influence of the ambient
conditions is expressed by the heat transfer fluid in tank and the environment. Used incoming
data are the temperature profile and sun heat flux characteristic for Serbia, in summer time.",
publisher = "Materials Research Society of Serbia, Crna Gora",
journal = "YUCOMAT 2011",
title = "DETERMINATION OF THERMAL CONDUCTIVITY OF THE INSULATION MATERIALS USING NUMERICAL CALCULATION OF THE PRESSURE INCREASE",
pages = "137",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6142"
}

Prvulović, M., Ristić, M., Prokolab, M., Kočić, M., Alil, A., Milutinović, Z. R.,& Budimir, S.. (2011). DETERMINATION OF THERMAL CONDUCTIVITY OF THE INSULATION MATERIALS USING NUMERICAL CALCULATION OF THE PRESSURE INCREASE. in YUCOMAT 2011
Materials Research Society of Serbia, Crna Gora., 137.
https://hdl.handle.net/21.15107/rcub_technorep_6142

Prvulović M, Ristić M, Prokolab M, Kočić M, Alil A, Milutinović ZR, Budimir S. DETERMINATION OF THERMAL CONDUCTIVITY OF THE INSULATION MATERIALS USING NUMERICAL CALCULATION OF THE PRESSURE INCREASE. in YUCOMAT 2011. 2011;:137.
https://hdl.handle.net/21.15107/rcub_technorep_6142 .

Prvulović, Mirjana, Ristić, Marko, Prokolab, Milan, Kočić, Milorad, Alil, Ana, Milutinović, Zlatan R., Budimir, Stevan, "DETERMINATION OF THERMAL CONDUCTIVITY OF THE INSULATION MATERIALS USING NUMERICAL CALCULATION OF THE PRESSURE INCREASE" in YUCOMAT 2011 (2011):137,
https://hdl.handle.net/21.15107/rcub_technorep_6142 .

TY  - CONF
AU  - Gligorijević, Bojan R.
AU  - Katavić, Boris T.
AU  - Alil, Ana
AU  - Jegdić, Bore V.
AU  - Ristić, Marko
AU  - Prokolab, Milan
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6107
AB  - As-received floating-head heat exchanger bolts were broken (BB) and deposite-coated. The aim was to estimate
a cause of their failure. The new bolts of the same material were used as a reference material (reference bolt –
RB). After visual and radiographic examination, their chemical composition, structure and room-temperature
mechanical properties were determined and compared. Comparison was made with the values set by standard,
as well. Afterwards, fractography was performed on fractured surfaces of tensile specimens and originally
(during exploitation) BBs to try to get an impression about bolts failure mechanism. Qualitative analysis of
deposite was employed in order to confirm was there any possible influence of surroundings during their failure
in terms of corrosion-assisted cracking. Chemical composition of RB and BB materials was analyzed by use of
spectrophotometry and structure properties with light optical microscope (LOM). Fractured surfaces of tensile
specimens and of BBs, as well as deposite chemistry, were analyzed by use of Scanning Electron Microscopy
with Energy Dispersive System (SEM-EDS). BBs had an approximately three times higher sulphur content and
lesser manganese content, lower ductility and higher strength values comparing to those of the RBs. Generally,
fracture surfaces of both, RB and BB tensile specimens have a similar rosette-like macro-appearance. The only
difference is that the radial marks in the case of the RBs are rougher. The surface has a more fibrous area and
shear lip presence. Fracture mode can be characterized as dimple rupture and micromechanism as microvoid
coalescence. In the case of BB tensile specimens, the mixed presence of dimples and cleavage facets was
noticed. The macrofractography of originally broken surfaces shows a rough and complex topography of
fracture surfaces indicating on a possibility that bolts failure has been a result of complex loading conditions.
Presence of sulphur- and chlorine-containing particles on the fracture surfaces of BBs and in deposite reveals a
possibility that failure was environmentally-assisted.
PB  - Timisoara, Romania
C3  - Proceedings of the 9th International Conference “Structural integrity of welded structures”
T1  - Analysis of floating-head heat exchanger bolts failure
EP  - 9
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6107
ER  - 

@conference{
author = "Gligorijević, Bojan R. and Katavić, Boris T. and Alil, Ana and Jegdić, Bore V. and Ristić, Marko and Prokolab, Milan",
year = "2011",
abstract = "As-received floating-head heat exchanger bolts were broken (BB) and deposite-coated. The aim was to estimate
a cause of their failure. The new bolts of the same material were used as a reference material (reference bolt –
RB). After visual and radiographic examination, their chemical composition, structure and room-temperature
mechanical properties were determined and compared. Comparison was made with the values set by standard,
as well. Afterwards, fractography was performed on fractured surfaces of tensile specimens and originally
(during exploitation) BBs to try to get an impression about bolts failure mechanism. Qualitative analysis of
deposite was employed in order to confirm was there any possible influence of surroundings during their failure
in terms of corrosion-assisted cracking. Chemical composition of RB and BB materials was analyzed by use of
spectrophotometry and structure properties with light optical microscope (LOM). Fractured surfaces of tensile
specimens and of BBs, as well as deposite chemistry, were analyzed by use of Scanning Electron Microscopy
with Energy Dispersive System (SEM-EDS). BBs had an approximately three times higher sulphur content and
lesser manganese content, lower ductility and higher strength values comparing to those of the RBs. Generally,
fracture surfaces of both, RB and BB tensile specimens have a similar rosette-like macro-appearance. The only
difference is that the radial marks in the case of the RBs are rougher. The surface has a more fibrous area and
shear lip presence. Fracture mode can be characterized as dimple rupture and micromechanism as microvoid
coalescence. In the case of BB tensile specimens, the mixed presence of dimples and cleavage facets was
noticed. The macrofractography of originally broken surfaces shows a rough and complex topography of
fracture surfaces indicating on a possibility that bolts failure has been a result of complex loading conditions.
Presence of sulphur- and chlorine-containing particles on the fracture surfaces of BBs and in deposite reveals a
possibility that failure was environmentally-assisted.",
publisher = "Timisoara, Romania",
journal = "Proceedings of the 9th International Conference “Structural integrity of welded structures”",
title = "Analysis of floating-head heat exchanger bolts failure",
pages = "9-1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6107"
}

Gligorijević, B. R., Katavić, B. T., Alil, A., Jegdić, B. V., Ristić, M.,& Prokolab, M.. (2011). Analysis of floating-head heat exchanger bolts failure. in Proceedings of the 9th International Conference “Structural integrity of welded structures”
Timisoara, Romania., 1-9.
https://hdl.handle.net/21.15107/rcub_technorep_6107

Gligorijević BR, Katavić BT, Alil A, Jegdić BV, Ristić M, Prokolab M. Analysis of floating-head heat exchanger bolts failure. in Proceedings of the 9th International Conference “Structural integrity of welded structures”. 2011;:1-9.
https://hdl.handle.net/21.15107/rcub_technorep_6107 .

Gligorijević, Bojan R., Katavić, Boris T., Alil, Ana, Jegdić, Bore V., Ristić, Marko, Prokolab, Milan, "Analysis of floating-head heat exchanger bolts failure" in Proceedings of the 9th International Conference “Structural integrity of welded structures” (2011):1-9,
https://hdl.handle.net/21.15107/rcub_technorep_6107 .

TY  - CONF
AU  - Alil, Ana
AU  - Katavić, Boris
AU  - Ristić, Marko
AU  - Jovanović, Dragan
AU  - Prokolab, Milan
AU  - Stevan, Budimir
AU  - Kočić, Milorad
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6094
AB  - Ventilation mill for grinding coal is one of the main steam
power plants in the system that makes a significant influence
on the level of energy efficiency with its work. Working
parts of the device during exploitation are dominantly
exposed to intensive abrasive and erosive wear and also to
impact loading at elevated temperatures, which can lead to
damage and fracture of homogeneous materials, thus
shortening their working life. The consequences are the
reduction in mill production capacity and its ventilatory
effects compared to the projected value, as well as frequent
delays due to parts replacements, that significantly affects
the productivity, economy and energy-efficiency of the
system.
In order to determine the optimal technology for
revitalization of the damaged impact plates the experimental
model-hardfacing was engaged and different technologies
and additional materials were used. Three technologies archardfacing
were applied (MMA, SMAW and gas welding -
G) and eight additional materials with different chemical
composition and properties (Fe-Cr-C-Si, Fe-Cr-C-Si-Ti, Fe-
C-W-Co-Ni-Si, Fe-Cr-W-B-Nb-Mo-C, W-Fe-C and WC-Ni-
Cr-Si-B). The aim of this paper is to make the selection of
optimum welding procedures and additional materials and
hardfacing technology definition based on the results of
structural and mechanical properties of samples of
experimental model hardfacing. Cutting the samples for
mechanical and structural tests is performed with water jet
cutting using hardfaced test plan. Investigation of its
macrostructure has been done, diagrams of distributions of
hardness have been made, zone of the surface layer and
HAZ-a, and the degree of mixing for all hardfaced samples
have been defined. In addition, microstructural analyses
were obtained with optical (OM) and scanning electron
microscopy (SEM). The choice of additional materials and
hardfacing procedures which were applied in the hard facing
impact plates ventilation mill has been made based on the
results of this research paper.
PB  - SUDURA publising house, Rumunija
C3  - The 5th International Conference – Innovative technologies for joining advanced materials
T1  - Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill
EP  - 6
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6094
ER  - 

@conference{
author = "Alil, Ana and Katavić, Boris and Ristić, Marko and Jovanović, Dragan and Prokolab, Milan and Stevan, Budimir and Kočić, Milorad",
year = "2011",
abstract = "Ventilation mill for grinding coal is one of the main steam
power plants in the system that makes a significant influence
on the level of energy efficiency with its work. Working
parts of the device during exploitation are dominantly
exposed to intensive abrasive and erosive wear and also to
impact loading at elevated temperatures, which can lead to
damage and fracture of homogeneous materials, thus
shortening their working life. The consequences are the
reduction in mill production capacity and its ventilatory
effects compared to the projected value, as well as frequent
delays due to parts replacements, that significantly affects
the productivity, economy and energy-efficiency of the
system.
In order to determine the optimal technology for
revitalization of the damaged impact plates the experimental
model-hardfacing was engaged and different technologies
and additional materials were used. Three technologies archardfacing
were applied (MMA, SMAW and gas welding -
G) and eight additional materials with different chemical
composition and properties (Fe-Cr-C-Si, Fe-Cr-C-Si-Ti, Fe-
C-W-Co-Ni-Si, Fe-Cr-W-B-Nb-Mo-C, W-Fe-C and WC-Ni-
Cr-Si-B). The aim of this paper is to make the selection of
optimum welding procedures and additional materials and
hardfacing technology definition based on the results of
structural and mechanical properties of samples of
experimental model hardfacing. Cutting the samples for
mechanical and structural tests is performed with water jet
cutting using hardfaced test plan. Investigation of its
macrostructure has been done, diagrams of distributions of
hardness have been made, zone of the surface layer and
HAZ-a, and the degree of mixing for all hardfaced samples
have been defined. In addition, microstructural analyses
were obtained with optical (OM) and scanning electron
microscopy (SEM). The choice of additional materials and
hardfacing procedures which were applied in the hard facing
impact plates ventilation mill has been made based on the
results of this research paper.",
publisher = "SUDURA publising house, Rumunija",
journal = "The 5th International Conference – Innovative technologies for joining advanced materials",
title = "Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill",
pages = "6-1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6094"
}

Alil, A., Katavić, B., Ristić, M., Jovanović, D., Prokolab, M., Stevan, B.,& Kočić, M.. (2011). Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill. in The 5th International Conference – Innovative technologies for joining advanced materials
SUDURA publising house, Rumunija., 1-6.
https://hdl.handle.net/21.15107/rcub_technorep_6094

Alil A, Katavić B, Ristić M, Jovanović D, Prokolab M, Stevan B, Kočić M. Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill. in The 5th International Conference – Innovative technologies for joining advanced materials. 2011;:1-6.
https://hdl.handle.net/21.15107/rcub_technorep_6094 .

Alil, Ana, Katavić, Boris, Ristić, Marko, Jovanović, Dragan, Prokolab, Milan, Stevan, Budimir, Kočić, Milorad, "Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill" in The 5th International Conference – Innovative technologies for joining advanced materials (2011):1-6,
https://hdl.handle.net/21.15107/rcub_technorep_6094 .

TY  - JOUR
AU  - Alil, Ana
AU  - Katavić, Boris T.
AU  - Ristić, Marko
AU  - Jovanović, Dragan
AU  - Prokolab, Milan
AU  - Budimir, Stevan
AU  - Kočić, Milorad
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6229
PB  - SUDURA Publishing House
T2  - Welding and Material Testing
T1  - Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill
EP  - 11
IS  - 3
SP  - 7
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6229
ER  - 

@article{
author = "Alil, Ana and Katavić, Boris T. and Ristić, Marko and Jovanović, Dragan and Prokolab, Milan and Budimir, Stevan and Kočić, Milorad",
year = "2011",
publisher = "SUDURA Publishing House",
journal = "Welding and Material Testing",
title = "Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill",
pages = "11-7",
number = "3",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6229"
}

Alil, A., Katavić, B. T., Ristić, M., Jovanović, D., Prokolab, M., Budimir, S.,& Kočić, M.. (2011). Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill. in Welding and Material Testing
SUDURA Publishing House.(3), 7-11.
https://hdl.handle.net/21.15107/rcub_technorep_6229

Alil A, Katavić BT, Ristić M, Jovanović D, Prokolab M, Budimir S, Kočić M. Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill. in Welding and Material Testing. 2011;(3):7-11.
https://hdl.handle.net/21.15107/rcub_technorep_6229 .

Alil, Ana, Katavić, Boris T., Ristić, Marko, Jovanović, Dragan, Prokolab, Milan, Budimir, Stevan, Kočić, Milorad, "Structural and mechanical properties of different hard welded coatings for impact plate for ventilation mill" in Welding and Material Testing, no. 3 (2011):7-11,
https://hdl.handle.net/21.15107/rcub_technorep_6229 .

TY  - JOUR
AU  - Ristić, Marko
AU  - Kočić, Milorad
AU  - Alil, Ana
AU  - Ilić, Olivera
AU  - Ignjatović, Jelena
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6230
AB  - Cycloidal speed reducer belongs to the generation of modern planetary gears. It main features are: 
high transmission ratio, compact design, long and reliable working life, high efficiency, possibility of accepting 
big short-term overloads, wide application in various industries,... 
The main element of cycloidal speed reducer is certainly cycloid disc whose profile is equidistant of shortened 
epitrochoid. Analytical and numerical models of cyclo speed reducer аre developed in aim to analiyse the 
distribution of stress of some elements of cyclo speed reducer. The results are presented in the form of images, 
tables and charts.
PB  - University of Timisoara, Transactions on Mechanics
T2  - Scientific Bulletin of the „POLITEHNICA“
T1  - Distribution  of loads of cycloid speed reducer
EP  - 72
SP  - 69
VL  - 56 (70)
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6230
ER  - 

@article{
author = "Ristić, Marko and Kočić, Milorad and Alil, Ana and Ilić, Olivera and Ignjatović, Jelena",
year = "2011",
abstract = "Cycloidal speed reducer belongs to the generation of modern planetary gears. It main features are: 
high transmission ratio, compact design, long and reliable working life, high efficiency, possibility of accepting 
big short-term overloads, wide application in various industries,... 
The main element of cycloidal speed reducer is certainly cycloid disc whose profile is equidistant of shortened 
epitrochoid. Analytical and numerical models of cyclo speed reducer аre developed in aim to analiyse the 
distribution of stress of some elements of cyclo speed reducer. The results are presented in the form of images, 
tables and charts.",
publisher = "University of Timisoara, Transactions on Mechanics",
journal = "Scientific Bulletin of the „POLITEHNICA“",
title = "Distribution  of loads of cycloid speed reducer",
pages = "72-69",
volume = "56 (70)",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6230"
}

Ristić, M., Kočić, M., Alil, A., Ilić, O.,& Ignjatović, J.. (2011). Distribution  of loads of cycloid speed reducer. in Scientific Bulletin of the „POLITEHNICA“
University of Timisoara, Transactions on Mechanics., 56 (70), 69-72.
https://hdl.handle.net/21.15107/rcub_technorep_6230

Ristić M, Kočić M, Alil A, Ilić O, Ignjatović J. Distribution  of loads of cycloid speed reducer. in Scientific Bulletin of the „POLITEHNICA“. 2011;56 (70):69-72.
https://hdl.handle.net/21.15107/rcub_technorep_6230 .

Ristić, Marko, Kočić, Milorad, Alil, Ana, Ilić, Olivera, Ignjatović, Jelena, "Distribution  of loads of cycloid speed reducer" in Scientific Bulletin of the „POLITEHNICA“, 56 (70) (2011):69-72,
https://hdl.handle.net/21.15107/rcub_technorep_6230 .