Mladenović, Mladen

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  • Mladenović, Mladen (15)

Author's Bibliography

Influence of Temperature on Impact Toughness of HSLA Steels

Bulatović, Srđan; Aleksić, Vujadin; Mladenović, Mladen

(2023)

TY  - JOUR
AU  - Bulatović, Srđan
AU  - Aleksić, Vujadin
AU  - Mladenović, Mladen
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/498
AB  - The aim of this paper is to present the influence of differ-ent temperatures on the impact toughness of welded joint of high strength low-alloy steel. The results of impact tests for all three constituents of the manual arc welded joint of NN-70 steel at temperatures range from 20 °C to -100 °C are presented. It has been shown that impact tests of high-strength low-alloy (HSLA) steels at room and lower tem-peratures indicate that temperature significantly affects the toughness of high-strength low-alloy steels in the context that lowering the test temperature leads to creation of brittle fracture in the form of a successive decrease in total impact energy. This indicator is very important in the further design and exploitation of welded steel structures.
T2  - Structural Integrity and Life, Special Issue
T1  - Influence of Temperature on Impact Toughness of HSLA Steels
EP  - 94
SP  - 91
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_498
ER  - 
@article{
author = "Bulatović, Srđan and Aleksić, Vujadin and Mladenović, Mladen",
year = "2023",
abstract = "The aim of this paper is to present the influence of differ-ent temperatures on the impact toughness of welded joint of high strength low-alloy steel. The results of impact tests for all three constituents of the manual arc welded joint of NN-70 steel at temperatures range from 20 °C to -100 °C are presented. It has been shown that impact tests of high-strength low-alloy (HSLA) steels at room and lower tem-peratures indicate that temperature significantly affects the toughness of high-strength low-alloy steels in the context that lowering the test temperature leads to creation of brittle fracture in the form of a successive decrease in total impact energy. This indicator is very important in the further design and exploitation of welded steel structures.",
journal = "Structural Integrity and Life, Special Issue",
title = "Influence of Temperature on Impact Toughness of HSLA Steels",
pages = "94-91",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_498"
}
Bulatović, S., Aleksić, V.,& Mladenović, M.. (2023). Influence of Temperature on Impact Toughness of HSLA Steels. in Structural Integrity and Life, Special Issue, 23, 91-94.
https://hdl.handle.net/21.15107/rcub_rims_498
Bulatović S, Aleksić V, Mladenović M. Influence of Temperature on Impact Toughness of HSLA Steels. in Structural Integrity and Life, Special Issue. 2023;23:91-94.
https://hdl.handle.net/21.15107/rcub_rims_498 .
Bulatović, Srđan, Aleksić, Vujadin, Mladenović, Mladen, "Influence of Temperature on Impact Toughness of HSLA Steels" in Structural Integrity and Life, Special Issue, 23 (2023):91-94,
https://hdl.handle.net/21.15107/rcub_rims_498 .

Centar za metale i energetiku Instituta za ispitivanje materijala IMS (istorijat - sadašnjost - budućnost)

Mladenović, Mladen

(2023)

TY  - JOUR
AU  - Mladenović, Mladen
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/497
AB  - Centar za metale i energetiku, u okviru Instituta IMS, je od početka osnivanja i kroz celu njegovu istoriju kroz svoje multidisciplinarne delatnosti neizostavni deo poslovanja. Sam centar za metale predstavlja lidera u oblastima ispiti-vanja metala, sa i bez razaranja. Takođe, kroz delatnosti koje obavljaju akreditovane celine kontrolnog tela i sertifikacio-nog tela za sertifikaciju zavarivača široka lepeza poslova-nja ogleda se i kroz akreditovane laboratorije na poljima metrologije. Učešće u privredi uz učešća u naučnoistraži-vačkim aktivnostima i primeni savremenih tehnologija ispi-tivanja visoko pozicionira centar za metale u Republici Srbiji i regionu.
T2  - Integritet i vek konstrukcija, specijalno izdanje
T1  - Centar za metale i energetiku Instituta za ispitivanje materijala IMS (istorijat - sadašnjost - budućnost)
EP  - 89
SP  - 87
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_497
ER  - 
@article{
author = "Mladenović, Mladen",
year = "2023",
abstract = "Centar za metale i energetiku, u okviru Instituta IMS, je od početka osnivanja i kroz celu njegovu istoriju kroz svoje multidisciplinarne delatnosti neizostavni deo poslovanja. Sam centar za metale predstavlja lidera u oblastima ispiti-vanja metala, sa i bez razaranja. Takođe, kroz delatnosti koje obavljaju akreditovane celine kontrolnog tela i sertifikacio-nog tela za sertifikaciju zavarivača široka lepeza poslova-nja ogleda se i kroz akreditovane laboratorije na poljima metrologije. Učešće u privredi uz učešća u naučnoistraži-vačkim aktivnostima i primeni savremenih tehnologija ispi-tivanja visoko pozicionira centar za metale u Republici Srbiji i regionu.",
journal = "Integritet i vek konstrukcija, specijalno izdanje",
title = "Centar za metale i energetiku Instituta za ispitivanje materijala IMS (istorijat - sadašnjost - budućnost)",
pages = "89-87",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_497"
}
Mladenović, M.. (2023). Centar za metale i energetiku Instituta za ispitivanje materijala IMS (istorijat - sadašnjost - budućnost). in Integritet i vek konstrukcija, specijalno izdanje, 23, 87-89.
https://hdl.handle.net/21.15107/rcub_rims_497
Mladenović M. Centar za metale i energetiku Instituta za ispitivanje materijala IMS (istorijat - sadašnjost - budućnost). in Integritet i vek konstrukcija, specijalno izdanje. 2023;23:87-89.
https://hdl.handle.net/21.15107/rcub_rims_497 .
Mladenović, Mladen, "Centar za metale i energetiku Instituta za ispitivanje materijala IMS (istorijat - sadašnjost - budućnost)" in Integritet i vek konstrukcija, specijalno izdanje, 23 (2023):87-89,
https://hdl.handle.net/21.15107/rcub_rims_497 .

Influence of defects on limit loads and integrity of the pipeline at hydropower plant 'Pirot'

Međo, Bojan; Arsić, Miodrag; Mladenović, Mladen; Savić, Zoran; Grabulov, Vencislav; Radosavljević, Zoran; Rakin, Marko

(Institut za ispitivanje materijala, Beograd, 2020)

TY  - JOUR
AU  - Međo, Bojan
AU  - Arsić, Miodrag
AU  - Mladenović, Mladen
AU  - Savić, Zoran
AU  - Grabulov, Vencislav
AU  - Radosavljević, Zoran
AU  - Rakin, Marko
PY  - 2020
UR  - http://rims.institutims.rs/handle/123456789/381
AB  - Topic of this work is the integrity assessment of the pipeline section from hydropower plant Pirot. Crack-like defect size, maximum depth, is determined based on non-destructive evaluation - the largest crack depth is taken as the initial value for load carrying capacity estimation. Also, the crack dimensions (both length and depth) are varied. Limit pressure values are determined from 3D and 2D models of pipes with axial cracks on external surface. The influence of tensile loading on the load carrying capacity of the pipes with circumferential cracks is also examined. Integrity of pipes with both types of defects (axial and circumferential) is assessed through application of FAD diagrams.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Influence of defects on limit loads and integrity of the pipeline at hydropower plant 'Pirot'
EP  - 86
IS  - 1
SP  - 82
VL  - 20
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4567
ER  - 
@article{
author = "Međo, Bojan and Arsić, Miodrag and Mladenović, Mladen and Savić, Zoran and Grabulov, Vencislav and Radosavljević, Zoran and Rakin, Marko",
year = "2020",
abstract = "Topic of this work is the integrity assessment of the pipeline section from hydropower plant Pirot. Crack-like defect size, maximum depth, is determined based on non-destructive evaluation - the largest crack depth is taken as the initial value for load carrying capacity estimation. Also, the crack dimensions (both length and depth) are varied. Limit pressure values are determined from 3D and 2D models of pipes with axial cracks on external surface. The influence of tensile loading on the load carrying capacity of the pipes with circumferential cracks is also examined. Integrity of pipes with both types of defects (axial and circumferential) is assessed through application of FAD diagrams.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Influence of defects on limit loads and integrity of the pipeline at hydropower plant 'Pirot'",
pages = "86-82",
number = "1",
volume = "20",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4567"
}
Međo, B., Arsić, M., Mladenović, M., Savić, Z., Grabulov, V., Radosavljević, Z.,& Rakin, M.. (2020). Influence of defects on limit loads and integrity of the pipeline at hydropower plant 'Pirot'. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 20(1), 82-86.
https://hdl.handle.net/21.15107/rcub_technorep_4567
Međo B, Arsić M, Mladenović M, Savić Z, Grabulov V, Radosavljević Z, Rakin M. Influence of defects on limit loads and integrity of the pipeline at hydropower plant 'Pirot'. in Structural Integrity and Life. 2020;20(1):82-86.
https://hdl.handle.net/21.15107/rcub_technorep_4567 .
Međo, Bojan, Arsić, Miodrag, Mladenović, Mladen, Savić, Zoran, Grabulov, Vencislav, Radosavljević, Zoran, Rakin, Marko, "Influence of defects on limit loads and integrity of the pipeline at hydropower plant 'Pirot'" in Structural Integrity and Life, 20, no. 1 (2020):82-86,
https://hdl.handle.net/21.15107/rcub_technorep_4567 .
2
15

Analiza stanja vitalne čelične konstrukcije kabine rukovaoca rotornog bagera nakon havarije i sanacije

Arsić, Miodrag; Savković, Mile; Mladenović, Mladen; Bošković, Goran; Savić, Zoran

(Institut IMK "14. oktobar", Kruševac, 2019)

TY  - JOUR
AU  - Arsić, Miodrag
AU  - Savković, Mile
AU  - Mladenović, Mladen
AU  - Bošković, Goran
AU  - Savić, Zoran
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/365
AB  - Na deponiji uglja termoelektrane "Nikola Tesla A" u Obrenovcu (Srbija), rade dva rotorna bagera interne oznake DU1 i DU2, koji su proizved francuske fabrike "Ameco" i kreću se po kružnoj stazi (tzv. polarna staza), uz napomenu da u Istočnoj Evropi rade samo tri bagera tog tipa. Treći rotorni bager istog proizvođača radi na deponiji uglja termoelektrane "Nikola Tesla B" u Obrenovcu. U radu je prikazana analiza stanja vitalne čelične konstrukcije kabine rukovaoca rotornog bagera DU 2, izrađene od cevi različitih prečnika i debljina lima, nakon havarije izazvane udarom kamena u poprečni nosač konstrukcije. Kamen se nalazio u otkopanom uglju jedne od kašika rotora bagera. Prilikom udara kamena poprečni nosač konstrukcije kabine rukovaoca se savio i popucali su zavareni spojevi između prirubnica na sredini poprečnog nosača i zavareni spojevi na mestima veze poprečnog nosača sa vertikalnim nosačima konstrukcije. S obzirom da korisnik bagera ne poseduje projektnu i tehničku dokumentaciju sanacija oštećenja sprovedena je pod predpostavkom da je rešetkasta konstrukcija kabine rukovaoca bagera izrađena od konstrukcijskih čelika, koji se uglavnom primenjuju za izradu rotornih bagera. Na osnovu analiza stanja nakon privremene sanacije oštećenja došlo se do zaključka da je za trajno obezbeđenje integriteta noseće čelične konstrukcije kabine rukovaoca rotornog bagera du2 kao celine potrebno izvršiti zamenu oštećenog poprečnog noseća čelične konstrukcije.
AB  - There are 2 bucket -wheel reclaimers, internally labelled as DU1 and DU2, made by French manufacturer 'Ameco', that operate at the open pit surface mine which belongs to the thermal power plant 'Nikola Tesla A' in Obrenovac. They are moving along the polar path and it should be noted that there are only 3 reclaimers of that kind in Eastern Europe. The third bucketwheel reclaimer, made by the same manufacturer, operates at the open pit surface mine that belongs to the thermal power plant 'Nikola Tesla B' in Obrenovac. In this paper the state analysis of the vital steel structure of the bucket-wheel reclaimer DU2 operators' cabin, made of pipes of various diameters and thicknesses, after the breakdown caused by a rock that hit the horizontal support of the structure is presented. The rock was located in the excavated coal within a bucket of the bucket-wheel reclaimer. The horizontal support of the operators' cabin structure has Bent and welded joints between flanges at the middle of the horizontal support, as well as welded joints at bonds of the horizontal support with vertical supports of the structure, have cracked due to the impact of the rock. Taking into account the fact that the user of the bucket-wheel reclaimer does not own the design and technical documentation, damage repair was carried out under the assumption that the lattice structure of the operators' cabin was made of structural steels, which are mostly being used for the manufacture of bucket-wheel reclaimers. On the basis of state analysis after the temporary repair of damages the conclusion arose that for the permanent provision of integrity of the support steel structure of the bucket-wheel reclaimer DU-2 operators' cabin as a whole it is necessary to replace the damaged horizontal support.
PB  - Institut IMK "14. oktobar", Kruševac
T2  - IMK-14 - Istraživanje i razvoj
T1  - Analiza stanja vitalne čelične konstrukcije kabine rukovaoca rotornog bagera nakon havarije i sanacije
T1  - State analysis of the vital steel structure of the bucket-wheel reclaimer operators cabin after the breakdown and the rehabilitation
EP  - 46
IS  - 2
SP  - 43
VL  - 25
DO  - 10.5937/IMK1902043A
ER  - 
@article{
author = "Arsić, Miodrag and Savković, Mile and Mladenović, Mladen and Bošković, Goran and Savić, Zoran",
year = "2019",
abstract = "Na deponiji uglja termoelektrane "Nikola Tesla A" u Obrenovcu (Srbija), rade dva rotorna bagera interne oznake DU1 i DU2, koji su proizved francuske fabrike "Ameco" i kreću se po kružnoj stazi (tzv. polarna staza), uz napomenu da u Istočnoj Evropi rade samo tri bagera tog tipa. Treći rotorni bager istog proizvođača radi na deponiji uglja termoelektrane "Nikola Tesla B" u Obrenovcu. U radu je prikazana analiza stanja vitalne čelične konstrukcije kabine rukovaoca rotornog bagera DU 2, izrađene od cevi različitih prečnika i debljina lima, nakon havarije izazvane udarom kamena u poprečni nosač konstrukcije. Kamen se nalazio u otkopanom uglju jedne od kašika rotora bagera. Prilikom udara kamena poprečni nosač konstrukcije kabine rukovaoca se savio i popucali su zavareni spojevi između prirubnica na sredini poprečnog nosača i zavareni spojevi na mestima veze poprečnog nosača sa vertikalnim nosačima konstrukcije. S obzirom da korisnik bagera ne poseduje projektnu i tehničku dokumentaciju sanacija oštećenja sprovedena je pod predpostavkom da je rešetkasta konstrukcija kabine rukovaoca bagera izrađena od konstrukcijskih čelika, koji se uglavnom primenjuju za izradu rotornih bagera. Na osnovu analiza stanja nakon privremene sanacije oštećenja došlo se do zaključka da je za trajno obezbeđenje integriteta noseće čelične konstrukcije kabine rukovaoca rotornog bagera du2 kao celine potrebno izvršiti zamenu oštećenog poprečnog noseća čelične konstrukcije., There are 2 bucket -wheel reclaimers, internally labelled as DU1 and DU2, made by French manufacturer 'Ameco', that operate at the open pit surface mine which belongs to the thermal power plant 'Nikola Tesla A' in Obrenovac. They are moving along the polar path and it should be noted that there are only 3 reclaimers of that kind in Eastern Europe. The third bucketwheel reclaimer, made by the same manufacturer, operates at the open pit surface mine that belongs to the thermal power plant 'Nikola Tesla B' in Obrenovac. In this paper the state analysis of the vital steel structure of the bucket-wheel reclaimer DU2 operators' cabin, made of pipes of various diameters and thicknesses, after the breakdown caused by a rock that hit the horizontal support of the structure is presented. The rock was located in the excavated coal within a bucket of the bucket-wheel reclaimer. The horizontal support of the operators' cabin structure has Bent and welded joints between flanges at the middle of the horizontal support, as well as welded joints at bonds of the horizontal support with vertical supports of the structure, have cracked due to the impact of the rock. Taking into account the fact that the user of the bucket-wheel reclaimer does not own the design and technical documentation, damage repair was carried out under the assumption that the lattice structure of the operators' cabin was made of structural steels, which are mostly being used for the manufacture of bucket-wheel reclaimers. On the basis of state analysis after the temporary repair of damages the conclusion arose that for the permanent provision of integrity of the support steel structure of the bucket-wheel reclaimer DU-2 operators' cabin as a whole it is necessary to replace the damaged horizontal support.",
publisher = "Institut IMK "14. oktobar", Kruševac",
journal = "IMK-14 - Istraživanje i razvoj",
title = "Analiza stanja vitalne čelične konstrukcije kabine rukovaoca rotornog bagera nakon havarije i sanacije, State analysis of the vital steel structure of the bucket-wheel reclaimer operators cabin after the breakdown and the rehabilitation",
pages = "46-43",
number = "2",
volume = "25",
doi = "10.5937/IMK1902043A"
}
Arsić, M., Savković, M., Mladenović, M., Bošković, G.,& Savić, Z.. (2019). Analiza stanja vitalne čelične konstrukcije kabine rukovaoca rotornog bagera nakon havarije i sanacije. in IMK-14 - Istraživanje i razvoj
Institut IMK "14. oktobar", Kruševac., 25(2), 43-46.
https://doi.org/10.5937/IMK1902043A
Arsić M, Savković M, Mladenović M, Bošković G, Savić Z. Analiza stanja vitalne čelične konstrukcije kabine rukovaoca rotornog bagera nakon havarije i sanacije. in IMK-14 - Istraživanje i razvoj. 2019;25(2):43-46.
doi:10.5937/IMK1902043A .
Arsić, Miodrag, Savković, Mile, Mladenović, Mladen, Bošković, Goran, Savić, Zoran, "Analiza stanja vitalne čelične konstrukcije kabine rukovaoca rotornog bagera nakon havarije i sanacije" in IMK-14 - Istraživanje i razvoj, 25, no. 2 (2019):43-46,
https://doi.org/10.5937/IMK1902043A . .
1

Analiza trenutnog stanja i ocena čvrstoće cevovoda na hidroelektrani Pirot

Arsić, Miodrag; Grabulov, Vencislav; Mladenović, Mladen; Savić, Zoran

(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2018)

TY  - JOUR
AU  - Arsić, Miodrag
AU  - Grabulov, Vencislav
AU  - Mladenović, Mladen
AU  - Savić, Zoran
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/339
AB  - Hidroelektrana Pirot, koja je izgrađena 1990 godine, je akumulaciona elektrana derivacionog tipa, koja se sastoji od dva nadzemna vertikalna agregata sa Francis turbinama nominalne snage 41,5 MW, proizvedene u Češkoj Republici, tunela i ukopanog cevovoda ukupne dužine 2030 m i prečnika od O 3000 mm do O 3500 mm. Cevovod debljine lima 22 mm je izrađen od čelika kvaliteta S275J2G3 (stara oznaka Č.0462). Maksimalni pritisak u njemu ispred turbinskog zatvarača je 2,5 MP. Na cevovodu se u kontinuitetu od završetka izgradnje i puštanja u rad sprovode geodetska merenja kada je cevovod prazan i neopterećen hidrostatičkim pritiskom i kada je cevovod pun. Pregledom i analizom dobijenih podataka o pomeranjima duž trase cevovoda utvrđeno je da od 2003-2004 godine postoje znatno veće razlike u pomeranjima za pun i prazan cevovod, nego u prethodnom periodu. U radu je izvršena analiza trenutnog stanja i ocena čvrstoče cevovoda kao celine na osnovu rezultata ispitivanja sučeonih zavarenih spojeva i ukrsnih masta metodama bez razaranja u zoni preloma na stacionaži - dužini cevovoda 1+263m (vizuelno ispitivanje, ispitivanje magnetnim česticama, ispitivanje penetrantima, ispitivanje ultrazvukom, radiografsko ispitivanje, metalografsko ispitivanje metodom replika).
AB  - Hydro power plant Pirot, which was built in 1990, is an accumulation-derivative power plant, which consists of 2 above-ground vertical hydroelectric generating sets that contain Francis turbines with nominal power of 41,5 MW, manufactured in Czech Republic, a tunnel and a sunken pipeline with overall length of 2.030 m and diameter that ranges from 3.000 to 3.500 m. Pipes have been made of S275J2G3 steel. Pipe wall is 22 mm thick. Maximum pressure of 2.5 MPa occurs in front of the turbine cover. Geodetic measurements have been conducted permanently from the day the assembly was finished and pipeline was put into service, both when pipeline is empty and unloaded by hydrostatic pressure and when it is full. Analysis of obtained data regarding the movements along the pipeline route showed that from year 2003 there are significantly higher differences in movements comparing the situations when the pipeline is full and when it is empty in comparison with the previous period. This paper contains the analysis of current state and strength evaluation of the pipeline as a whole on the basis of results of non-destructive tests performed on the vital butt - welded joint in the curvature area at chainage 1+263 m (visual testing, magnetic particle testing, penetrant testing, ultrasonic testing, radiographic testing, metallographic replication testing).
PB  - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
T2  - Zavarivanje i zavarene konstrukcije
T1  - Analiza trenutnog stanja i ocena čvrstoće cevovoda na hidroelektrani Pirot
T1  - Analysis of current state and strength evaluation of the pipeline at hydro power plant 'Pirot'
EP  - 22
IS  - 1
SP  - 17
VL  - 63
DO  - 10.5937/zzk1801017A
ER  - 
@article{
author = "Arsić, Miodrag and Grabulov, Vencislav and Mladenović, Mladen and Savić, Zoran",
year = "2018",
abstract = "Hidroelektrana Pirot, koja je izgrađena 1990 godine, je akumulaciona elektrana derivacionog tipa, koja se sastoji od dva nadzemna vertikalna agregata sa Francis turbinama nominalne snage 41,5 MW, proizvedene u Češkoj Republici, tunela i ukopanog cevovoda ukupne dužine 2030 m i prečnika od O 3000 mm do O 3500 mm. Cevovod debljine lima 22 mm je izrađen od čelika kvaliteta S275J2G3 (stara oznaka Č.0462). Maksimalni pritisak u njemu ispred turbinskog zatvarača je 2,5 MP. Na cevovodu se u kontinuitetu od završetka izgradnje i puštanja u rad sprovode geodetska merenja kada je cevovod prazan i neopterećen hidrostatičkim pritiskom i kada je cevovod pun. Pregledom i analizom dobijenih podataka o pomeranjima duž trase cevovoda utvrđeno je da od 2003-2004 godine postoje znatno veće razlike u pomeranjima za pun i prazan cevovod, nego u prethodnom periodu. U radu je izvršena analiza trenutnog stanja i ocena čvrstoče cevovoda kao celine na osnovu rezultata ispitivanja sučeonih zavarenih spojeva i ukrsnih masta metodama bez razaranja u zoni preloma na stacionaži - dužini cevovoda 1+263m (vizuelno ispitivanje, ispitivanje magnetnim česticama, ispitivanje penetrantima, ispitivanje ultrazvukom, radiografsko ispitivanje, metalografsko ispitivanje metodom replika)., Hydro power plant Pirot, which was built in 1990, is an accumulation-derivative power plant, which consists of 2 above-ground vertical hydroelectric generating sets that contain Francis turbines with nominal power of 41,5 MW, manufactured in Czech Republic, a tunnel and a sunken pipeline with overall length of 2.030 m and diameter that ranges from 3.000 to 3.500 m. Pipes have been made of S275J2G3 steel. Pipe wall is 22 mm thick. Maximum pressure of 2.5 MPa occurs in front of the turbine cover. Geodetic measurements have been conducted permanently from the day the assembly was finished and pipeline was put into service, both when pipeline is empty and unloaded by hydrostatic pressure and when it is full. Analysis of obtained data regarding the movements along the pipeline route showed that from year 2003 there are significantly higher differences in movements comparing the situations when the pipeline is full and when it is empty in comparison with the previous period. This paper contains the analysis of current state and strength evaluation of the pipeline as a whole on the basis of results of non-destructive tests performed on the vital butt - welded joint in the curvature area at chainage 1+263 m (visual testing, magnetic particle testing, penetrant testing, ultrasonic testing, radiographic testing, metallographic replication testing).",
publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd",
journal = "Zavarivanje i zavarene konstrukcije",
title = "Analiza trenutnog stanja i ocena čvrstoće cevovoda na hidroelektrani Pirot, Analysis of current state and strength evaluation of the pipeline at hydro power plant 'Pirot'",
pages = "22-17",
number = "1",
volume = "63",
doi = "10.5937/zzk1801017A"
}
Arsić, M., Grabulov, V., Mladenović, M.,& Savić, Z.. (2018). Analiza trenutnog stanja i ocena čvrstoće cevovoda na hidroelektrani Pirot. in Zavarivanje i zavarene konstrukcije
DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 63(1), 17-22.
https://doi.org/10.5937/zzk1801017A
Arsić M, Grabulov V, Mladenović M, Savić Z. Analiza trenutnog stanja i ocena čvrstoće cevovoda na hidroelektrani Pirot. in Zavarivanje i zavarene konstrukcije. 2018;63(1):17-22.
doi:10.5937/zzk1801017A .
Arsić, Miodrag, Grabulov, Vencislav, Mladenović, Mladen, Savić, Zoran, "Analiza trenutnog stanja i ocena čvrstoće cevovoda na hidroelektrani Pirot" in Zavarivanje i zavarene konstrukcije, 63, no. 1 (2018):17-22,
https://doi.org/10.5937/zzk1801017A . .

Analiza trenutnog stanja i ocena integriteta cevovoda na hidroelektrani Pirot

Arsić, Miodrag; Malešević, Zoranka; Mladenović, Mladen; Savić, Zoran; Bošković, Goran

(Institut IMK "14. oktobar", Kruševac, 2017)

TY  - JOUR
AU  - Arsić, Miodrag
AU  - Malešević, Zoranka
AU  - Mladenović, Mladen
AU  - Savić, Zoran
AU  - Bošković, Goran
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/313
AB  - Hidroelektrana Pirot, koja je izgrađena 1990 godine, je akumulaciona elektrana derivacionog tipa, koja se sastoji od dva nadzemna vertikalna agregata sa Francis turbinama nominalne snage 41,5 MW, proizvedene u Češkoj Republici, tunela i ukopanog cevovoda ukupne dužine 2030 m i prečnika od Ø 3000 mm do Ø 3500 mm. Cevovod debljine lima 22 mm je izrađen od čelika kvaliteta S275J2G3 (stara oznaka Č.0462). Maksimalni pritisak u njemu ispred turbinskog zatvarača je 2,5 MP. Cevovod je projektovan i izgrađen bez ankernih blokova na prelomima, što pretstavlja retkost u svetu. Na cevovodu se u kontinuitetu od završetka izgradnje i puštanja u rad sprovode geodetska merenja kada je cevovod prazan i neopterećen hidrostatickim pritiskom i kada je cevovod pun. Pregledom i analizom dobijenih podataka o pomeranjima duz trase cevovoda utvrđeno je da od 2003-2004 godine postoje znatno veće razlike u pomeranjima za pun i prazan cevovod, nego u prethodnom periodu. Te razlike se prvenstveno odnose na tangencijalna pomeranja za temena oznake 6, 7 i 8, koja se u odnosu na period do 2002 godine kreću od 3 mm za teme 8 do 5 mm za teme 6. Pored geodetskih merenja u kontinuitetu se, sa unutrašnje strane cevovoda, sprovode i merenja promena horizontalnih i vertikalnih prečnika. Iz tih podataka se moze videti da u periodu 2003-2004 godine postoji i značajan trend povečanja horizontalnih, kao i manje izraženo smanjenje vertikalnih prečnika. U radu je izvršena analiza trenutnog stanja i ocena integriteta cevovoda kao celine na osnovu rezultata ispitivanja vitalnog sučeonog zavarenog spoja metodama bez razaranja u zoni preloma na stacionaži - dužini cevovoda 1+263 m (vizuelno ispitivanje, ispitivanje magnetnim česticama, ispitivanje penetrantima, ispitivanje ultrazvukom, radiografsko ispitivanje, metalografsko ispitivanje metodom replika).
AB  - Hydro power plant Pirot, which was built in 1990, is an accumulation-derivative power plant, which consists of 2 above-ground vertical hydroelectric generating sets that contain Francis turbines with nominal power of 41,5 MW, manufactured in Czech Republic, a tunnel and a sunken pipeline with overall length of 2.030 m and diameter that ranges from 3.000 to 3.500 m. Pipes have been made of S275J2G3 steel. Pipe wall is 22 mm thick. Maximum pressure of 2.5 MPa occurs in front of the turbine cover. Pipeline has been designed and built without anchor blocks at curvatures, which is a rarity elsewhere. Geodetic measurements have been conducted permanently from the day the assembly was finished and pipeline was put into service, both when pipeline is empty and unloaded by hydrostatic pressure and when it is full. Analysis of obtained data regarding the movements along the pipeline route showed that from year 2003 there are significantly higher differences in movements comparing the situations when the pipeline is full and when it is empty in comparison with the previous period. Those differences primarily refer to tangential movements of vertices marked with numbers 6, 7 and 8, which, compared to the period until year 2002, are in the range from 3 mm for vertex 8 to 5 mm for vertex 6. Apart from geodetic measurements, the measurement of pipe diameter in 2 directions is also being carried out permanently. Those data show that from year 2003 the diameter in horizontal direction started to increase significantly, while at the same time the diameter in vertical direction started to decrease less significantly. This paper contains the analysis of current state and integrity evaluation of the pipeline as a whole on the basis of results of non-destructive tests performed on the vital butt-welded joint in the curvature area at chainage 1+263 m (visual testing, magnetic particle testing, penetrant testing, ultrasonic testing, radiographic testing, metallographic replication testing.
PB  - Institut IMK "14. oktobar", Kruševac
T2  - IMK-14 - Istraživanje i razvoj
T1  - Analiza trenutnog stanja i ocena integriteta cevovoda na hidroelektrani Pirot
T1  - Analysis of current state and integrity evaluation of the pipeline at hydro power plant 'Pirot'
EP  - 14
IS  - 1
SP  - 9
VL  - 23
DO  - 10.5937/IMK1701009A
ER  - 
@article{
author = "Arsić, Miodrag and Malešević, Zoranka and Mladenović, Mladen and Savić, Zoran and Bošković, Goran",
year = "2017",
abstract = "Hidroelektrana Pirot, koja je izgrađena 1990 godine, je akumulaciona elektrana derivacionog tipa, koja se sastoji od dva nadzemna vertikalna agregata sa Francis turbinama nominalne snage 41,5 MW, proizvedene u Češkoj Republici, tunela i ukopanog cevovoda ukupne dužine 2030 m i prečnika od Ø 3000 mm do Ø 3500 mm. Cevovod debljine lima 22 mm je izrađen od čelika kvaliteta S275J2G3 (stara oznaka Č.0462). Maksimalni pritisak u njemu ispred turbinskog zatvarača je 2,5 MP. Cevovod je projektovan i izgrađen bez ankernih blokova na prelomima, što pretstavlja retkost u svetu. Na cevovodu se u kontinuitetu od završetka izgradnje i puštanja u rad sprovode geodetska merenja kada je cevovod prazan i neopterećen hidrostatickim pritiskom i kada je cevovod pun. Pregledom i analizom dobijenih podataka o pomeranjima duz trase cevovoda utvrđeno je da od 2003-2004 godine postoje znatno veće razlike u pomeranjima za pun i prazan cevovod, nego u prethodnom periodu. Te razlike se prvenstveno odnose na tangencijalna pomeranja za temena oznake 6, 7 i 8, koja se u odnosu na period do 2002 godine kreću od 3 mm za teme 8 do 5 mm za teme 6. Pored geodetskih merenja u kontinuitetu se, sa unutrašnje strane cevovoda, sprovode i merenja promena horizontalnih i vertikalnih prečnika. Iz tih podataka se moze videti da u periodu 2003-2004 godine postoji i značajan trend povečanja horizontalnih, kao i manje izraženo smanjenje vertikalnih prečnika. U radu je izvršena analiza trenutnog stanja i ocena integriteta cevovoda kao celine na osnovu rezultata ispitivanja vitalnog sučeonog zavarenog spoja metodama bez razaranja u zoni preloma na stacionaži - dužini cevovoda 1+263 m (vizuelno ispitivanje, ispitivanje magnetnim česticama, ispitivanje penetrantima, ispitivanje ultrazvukom, radiografsko ispitivanje, metalografsko ispitivanje metodom replika)., Hydro power plant Pirot, which was built in 1990, is an accumulation-derivative power plant, which consists of 2 above-ground vertical hydroelectric generating sets that contain Francis turbines with nominal power of 41,5 MW, manufactured in Czech Republic, a tunnel and a sunken pipeline with overall length of 2.030 m and diameter that ranges from 3.000 to 3.500 m. Pipes have been made of S275J2G3 steel. Pipe wall is 22 mm thick. Maximum pressure of 2.5 MPa occurs in front of the turbine cover. Pipeline has been designed and built without anchor blocks at curvatures, which is a rarity elsewhere. Geodetic measurements have been conducted permanently from the day the assembly was finished and pipeline was put into service, both when pipeline is empty and unloaded by hydrostatic pressure and when it is full. Analysis of obtained data regarding the movements along the pipeline route showed that from year 2003 there are significantly higher differences in movements comparing the situations when the pipeline is full and when it is empty in comparison with the previous period. Those differences primarily refer to tangential movements of vertices marked with numbers 6, 7 and 8, which, compared to the period until year 2002, are in the range from 3 mm for vertex 8 to 5 mm for vertex 6. Apart from geodetic measurements, the measurement of pipe diameter in 2 directions is also being carried out permanently. Those data show that from year 2003 the diameter in horizontal direction started to increase significantly, while at the same time the diameter in vertical direction started to decrease less significantly. This paper contains the analysis of current state and integrity evaluation of the pipeline as a whole on the basis of results of non-destructive tests performed on the vital butt-welded joint in the curvature area at chainage 1+263 m (visual testing, magnetic particle testing, penetrant testing, ultrasonic testing, radiographic testing, metallographic replication testing.",
publisher = "Institut IMK "14. oktobar", Kruševac",
journal = "IMK-14 - Istraživanje i razvoj",
title = "Analiza trenutnog stanja i ocena integriteta cevovoda na hidroelektrani Pirot, Analysis of current state and integrity evaluation of the pipeline at hydro power plant 'Pirot'",
pages = "14-9",
number = "1",
volume = "23",
doi = "10.5937/IMK1701009A"
}
Arsić, M., Malešević, Z., Mladenović, M., Savić, Z.,& Bošković, G.. (2017). Analiza trenutnog stanja i ocena integriteta cevovoda na hidroelektrani Pirot. in IMK-14 - Istraživanje i razvoj
Institut IMK "14. oktobar", Kruševac., 23(1), 9-14.
https://doi.org/10.5937/IMK1701009A
Arsić M, Malešević Z, Mladenović M, Savić Z, Bošković G. Analiza trenutnog stanja i ocena integriteta cevovoda na hidroelektrani Pirot. in IMK-14 - Istraživanje i razvoj. 2017;23(1):9-14.
doi:10.5937/IMK1701009A .
Arsić, Miodrag, Malešević, Zoranka, Mladenović, Mladen, Savić, Zoran, Bošković, Goran, "Analiza trenutnog stanja i ocena integriteta cevovoda na hidroelektrani Pirot" in IMK-14 - Istraživanje i razvoj, 23, no. 1 (2017):9-14,
https://doi.org/10.5937/IMK1701009A . .
1

Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'

Sedmak, Simon; Arsić, Miodrag; Bajić, Darko R.; Mladenović, Mladen; Savić, Zoran

(Institut za ispitivanje materijala, Beograd, 2015)

TY  - JOUR
AU  - Sedmak, Simon
AU  - Arsić, Miodrag
AU  - Bajić, Darko R.
AU  - Mladenović, Mladen
AU  - Savić, Zoran
PY  - 2015
UR  - http://rims.institutims.rs/handle/123456789/262
AB  - Presented are results of non-destructive tests performed on the parent material and welded joints of structural parts of a breeches pipe (collar and anchor), and results of destructive tests performed on the parent material of the anchor. Non-destructive testing included visual (VT), mag-netic particle (MT), and ultrasonic testing (UT), while destructive tests included determination of chemical com-position, tensile properties, impact energy and hardness. Based on test results it is established that the major cause for the occurrence of damage in the carrying structure of the breeches pipe no.1 of pipeline III, or in other words, the degradation of anchor parent material and welded joints between the collar and anchor, and between the pipeline and anchor, is in the fact that the breeches pipe started to lean, not on the collar, as specified by design, but on the anchor that could not endure all loads occurring in service.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'
EP  - 151
IS  - 3
SP  - 147
VL  - 15
UR  - https://hdl.handle.net/21.15107/rcub_rims_262
ER  - 
@article{
author = "Sedmak, Simon and Arsić, Miodrag and Bajić, Darko R. and Mladenović, Mladen and Savić, Zoran",
year = "2015",
abstract = "Presented are results of non-destructive tests performed on the parent material and welded joints of structural parts of a breeches pipe (collar and anchor), and results of destructive tests performed on the parent material of the anchor. Non-destructive testing included visual (VT), mag-netic particle (MT), and ultrasonic testing (UT), while destructive tests included determination of chemical com-position, tensile properties, impact energy and hardness. Based on test results it is established that the major cause for the occurrence of damage in the carrying structure of the breeches pipe no.1 of pipeline III, or in other words, the degradation of anchor parent material and welded joints between the collar and anchor, and between the pipeline and anchor, is in the fact that the breeches pipe started to lean, not on the collar, as specified by design, but on the anchor that could not endure all loads occurring in service.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'",
pages = "151-147",
number = "3",
volume = "15",
url = "https://hdl.handle.net/21.15107/rcub_rims_262"
}
Sedmak, S., Arsić, M., Bajić, D. R., Mladenović, M.,& Savić, Z.. (2015). Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 15(3), 147-151.
https://hdl.handle.net/21.15107/rcub_rims_262
Sedmak S, Arsić M, Bajić DR, Mladenović M, Savić Z. Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'. in Structural Integrity and Life. 2015;15(3):147-151.
https://hdl.handle.net/21.15107/rcub_rims_262 .
Sedmak, Simon, Arsić, Miodrag, Bajić, Darko R., Mladenović, Mladen, Savić, Zoran, "Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'" in Structural Integrity and Life, 15, no. 3 (2015):147-151,
https://hdl.handle.net/21.15107/rcub_rims_262 .
1

State Analysis and Integrity of Welded Structures of the Upper Ring of the Turbine Runner Guide Vane Apparatus of Hydroelectric Generating Set A6 on Hydro Power Plant Djerdap 1

Arsić, Miodrag; Odanović, Zoran; Bošnjak, Srđan; Mladenović, Mladen; Savić, Zoran

(Trans Tech Publications Ltd, Durnten-Zurich, 2013)

TY  - CONF
AU  - Arsić, Miodrag
AU  - Odanović, Zoran
AU  - Bošnjak, Srđan
AU  - Mladenović, Mladen
AU  - Savić, Zoran
PY  - 2013
UR  - http://rims.institutims.rs/handle/123456789/209
AB  - During the refurbishment of the hydroelectric generating set A6 on HPP "Djerdap 1", for the state analysis and assessment of the level and causes of degradation of the structure of the vertical Kaplan turbine runner guide vane apparatus non-destructive tests and inspections, as well as destructive tests of base material and welded joints, have been carried out after 40 years of service. Results of non-destructive tests performed on welded joints are presented in this paper (magnetic particle and ultrasonic inspection), as well as results of destructive tests of the base material and welded joints (testing of tensile properties, impact testing, metallographic analyses of the structure). A large number of crack type line indications were detected by magnetic particle inspections, while the occurrence of partial penetration in roots of welded joints was detected by ultrasonic inspections, as well as lamellar tearing of the base material. Tensile properties of tested samples taken in longitudinal and transverse direction fulfilled the requirements of the standard with certain deviations, which does not stand for samples taken in z-direction with significantly lower values of contraction of the cross-section than minimum prescribed values, which proves that base material is not resistant to the occurrence of lamellar cracks. Metallographic tests performed on specimens taken from the base material in longitudinal and transverse direction showed that the microstructure is stripe-shaped and ferrite-pearlite with non-metallic inclusions of oxide, sulphide, silicate and aluminate type, while metallographic tests performed on specimens taken from welded joints showed that their microstructure is stripe-shaped and ferrite-pearlite with non-metallic inclusions of oxide type. A large number of micro- and macro-cracks were detected in the microstructure as well. Experimental tests enabled the determination of the causes of occurrence of lamellar tearing in base material and crack type defects in welded joints, while analytical calculation that refers to the stress state enabled integrity of welded structure of the upper ring of the turbine runner guide vane apparatus.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
C3  - Structural Integrity of Welded Structures
T1  - State Analysis and Integrity of Welded Structures of the Upper Ring of the Turbine Runner Guide Vane Apparatus of Hydroelectric Generating Set A6 on Hydro Power Plant Djerdap 1
EP  - +
SP  - 7
VL  - 814
DO  - 10.4028/www.scientific.net/AMR.814.7
ER  - 
@conference{
author = "Arsić, Miodrag and Odanović, Zoran and Bošnjak, Srđan and Mladenović, Mladen and Savić, Zoran",
year = "2013",
abstract = "During the refurbishment of the hydroelectric generating set A6 on HPP "Djerdap 1", for the state analysis and assessment of the level and causes of degradation of the structure of the vertical Kaplan turbine runner guide vane apparatus non-destructive tests and inspections, as well as destructive tests of base material and welded joints, have been carried out after 40 years of service. Results of non-destructive tests performed on welded joints are presented in this paper (magnetic particle and ultrasonic inspection), as well as results of destructive tests of the base material and welded joints (testing of tensile properties, impact testing, metallographic analyses of the structure). A large number of crack type line indications were detected by magnetic particle inspections, while the occurrence of partial penetration in roots of welded joints was detected by ultrasonic inspections, as well as lamellar tearing of the base material. Tensile properties of tested samples taken in longitudinal and transverse direction fulfilled the requirements of the standard with certain deviations, which does not stand for samples taken in z-direction with significantly lower values of contraction of the cross-section than minimum prescribed values, which proves that base material is not resistant to the occurrence of lamellar cracks. Metallographic tests performed on specimens taken from the base material in longitudinal and transverse direction showed that the microstructure is stripe-shaped and ferrite-pearlite with non-metallic inclusions of oxide, sulphide, silicate and aluminate type, while metallographic tests performed on specimens taken from welded joints showed that their microstructure is stripe-shaped and ferrite-pearlite with non-metallic inclusions of oxide type. A large number of micro- and macro-cracks were detected in the microstructure as well. Experimental tests enabled the determination of the causes of occurrence of lamellar tearing in base material and crack type defects in welded joints, while analytical calculation that refers to the stress state enabled integrity of welded structure of the upper ring of the turbine runner guide vane apparatus.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Structural Integrity of Welded Structures",
title = "State Analysis and Integrity of Welded Structures of the Upper Ring of the Turbine Runner Guide Vane Apparatus of Hydroelectric Generating Set A6 on Hydro Power Plant Djerdap 1",
pages = "+-7",
volume = "814",
doi = "10.4028/www.scientific.net/AMR.814.7"
}
Arsić, M., Odanović, Z., Bošnjak, S., Mladenović, M.,& Savić, Z.. (2013). State Analysis and Integrity of Welded Structures of the Upper Ring of the Turbine Runner Guide Vane Apparatus of Hydroelectric Generating Set A6 on Hydro Power Plant Djerdap 1. in Structural Integrity of Welded Structures
Trans Tech Publications Ltd, Durnten-Zurich., 814, 7-+.
https://doi.org/10.4028/www.scientific.net/AMR.814.7
Arsić M, Odanović Z, Bošnjak S, Mladenović M, Savić Z. State Analysis and Integrity of Welded Structures of the Upper Ring of the Turbine Runner Guide Vane Apparatus of Hydroelectric Generating Set A6 on Hydro Power Plant Djerdap 1. in Structural Integrity of Welded Structures. 2013;814:7-+.
doi:10.4028/www.scientific.net/AMR.814.7 .
Arsić, Miodrag, Odanović, Zoran, Bošnjak, Srđan, Mladenović, Mladen, Savić, Zoran, "State Analysis and Integrity of Welded Structures of the Upper Ring of the Turbine Runner Guide Vane Apparatus of Hydroelectric Generating Set A6 on Hydro Power Plant Djerdap 1" in Structural Integrity of Welded Structures, 814 (2013):7-+,
https://doi.org/10.4028/www.scientific.net/AMR.814.7 . .
2

Tehnologija reparaturnog zavarivanja vratila turbine na hidroelektrani Đerdap bez demontaže agregata

Vistać, Brane; Arsić, Miodrag; Aleksić, Vujadin; Mladenović, Mladen; Jaković, Dragan

(Društvo za unapređivanje zavarivanja u Srbiji, Srbija, 2010)

TY  - CONF
AU  - Vistać, Brane
AU  - Arsić, Miodrag
AU  - Aleksić, Vujadin
AU  - Mladenović, Mladen
AU  - Jaković, Dragan
PY  - 2010
UR  - http://rims.institutims.rs/handle/123456789/798
PB  - Društvo za unapređivanje zavarivanja u Srbiji, Srbija
C3  - Dvadeset šesto savetovanje sa međunarodnim učešćem ZAVARIVANJE 2010
T1  - Tehnologija reparaturnog zavarivanja vratila turbine na hidroelektrani Đerdap bez demontaže agregata
EP  - 8
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_rims_798
ER  - 
@conference{
author = "Vistać, Brane and Arsić, Miodrag and Aleksić, Vujadin and Mladenović, Mladen and Jaković, Dragan",
year = "2010",
publisher = "Društvo za unapređivanje zavarivanja u Srbiji, Srbija",
journal = "Dvadeset šesto savetovanje sa međunarodnim učešćem ZAVARIVANJE 2010",
title = "Tehnologija reparaturnog zavarivanja vratila turbine na hidroelektrani Đerdap bez demontaže agregata",
pages = "8-1",
url = "https://hdl.handle.net/21.15107/rcub_rims_798"
}
Vistać, B., Arsić, M., Aleksić, V., Mladenović, M.,& Jaković, D.. (2010). Tehnologija reparaturnog zavarivanja vratila turbine na hidroelektrani Đerdap bez demontaže agregata. in Dvadeset šesto savetovanje sa međunarodnim učešćem ZAVARIVANJE 2010
Društvo za unapređivanje zavarivanja u Srbiji, Srbija., 1-8.
https://hdl.handle.net/21.15107/rcub_rims_798
Vistać B, Arsić M, Aleksić V, Mladenović M, Jaković D. Tehnologija reparaturnog zavarivanja vratila turbine na hidroelektrani Đerdap bez demontaže agregata. in Dvadeset šesto savetovanje sa međunarodnim učešćem ZAVARIVANJE 2010. 2010;:1-8.
https://hdl.handle.net/21.15107/rcub_rims_798 .
Vistać, Brane, Arsić, Miodrag, Aleksić, Vujadin, Mladenović, Mladen, Jaković, Dragan, "Tehnologija reparaturnog zavarivanja vratila turbine na hidroelektrani Đerdap bez demontaže agregata" in Dvadeset šesto savetovanje sa međunarodnim učešćem ZAVARIVANJE 2010 (2010):1-8,
https://hdl.handle.net/21.15107/rcub_rims_798 .

Predviđanje optimalnih parametara interventnog reparaturnog zavarivanja čelika 13CrMo4-5 analitičkim metodama

Katavić, Boris; Jegdić, Bore; Odanović, Zoran; Hut, Nenad; Mladenović, Mladen; Jaković, Dragan; Ristivojević, M.

(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2010)

TY  - JOUR
AU  - Katavić, Boris
AU  - Jegdić, Bore
AU  - Odanović, Zoran
AU  - Hut, Nenad
AU  - Mladenović, Mladen
AU  - Jaković, Dragan
AU  - Ristivojević, M.
PY  - 2010
UR  - http://rims.institutims.rs/handle/123456789/114
AB  - Već dugi niz godina se čelik 13CrMo4-5 (~Č7400) primenjuje za izradu delova termoenergetskih postrojenja kao što su elementi kotlova i cevi. Ovaj čelik pripada grupi uslovno zavarljivih čelika, koji mogu uspešno da se zavaruju uz primenu posebnih mera, kao što su predgrevanje, termička obrada nakon zavarivanja i drugih mera predostrožnosti, a obično se koristi dodatni materijal sličnog hemijskog sastava. Obzirom na specifičnost primene, pri reparaturnom zavarivanju posebno interventnom zavarivanju, potrebno je voditi računa o parametrima procesa zavarivanja i izboru dodatnih materijala. U radu je izvedena proračunska analiza i predviđanje optimalnih parametara reparaturnog zavarivanja sa ciljem dobijanja kvalitetnog zavarenog spoja sa zahtevanim mehaničkim osobinama bez naknadne termičke obrade. Pored toga izvršen je kontrolni proračun čvrstoće metala šava za dodatni materijal sličnog hemijskog sastava, a na osnovu predloženih parametara zavarivanja.
AB  - Over the years 13CrMo4-5 (~Č 7400) steel is applied for production of the parts as pressure vessels and pipes in the thermo energetic plants. Steel 13CrMo4-5 is conditionally weldable and it could be successfully welded and weld repaired with the special care and if preheating and post weld heat treating (PWHT) procedure are applied. It is usually welded with similar filler material. In consideration to specific application of the 13CrMo4-5 steel, in the case of breakdown and emergency repair welding, special care have to be taken to defining welding process parameters and selection of the filler materials. In this investigation a results of the calculations and estimations for the repair welding parameters is based on the analytical equations. Analysis is performed to obtaining optimal parameters for sound welded joint with optimal quality and mechanical properties without PWHT of the joint. Also, calculations of the weld metal strength are performed on the base of previously defined welding parameters for the filler metal similar to base metal.
PB  - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
T2  - Zavarivanje i zavarene konstrukcije
T1  - Predviđanje optimalnih parametara interventnog reparaturnog zavarivanja čelika 13CrMo4-5 analitičkim metodama
T1  - Optimal parameters estimation by the analytical methods for the emergency repair welding of the 13CrMo4-5 steel
EP  - 96
IS  - 3
SP  - 91
VL  - 55
UR  - https://hdl.handle.net/21.15107/rcub_rims_114
ER  - 
@article{
author = "Katavić, Boris and Jegdić, Bore and Odanović, Zoran and Hut, Nenad and Mladenović, Mladen and Jaković, Dragan and Ristivojević, M.",
year = "2010",
abstract = "Već dugi niz godina se čelik 13CrMo4-5 (~Č7400) primenjuje za izradu delova termoenergetskih postrojenja kao što su elementi kotlova i cevi. Ovaj čelik pripada grupi uslovno zavarljivih čelika, koji mogu uspešno da se zavaruju uz primenu posebnih mera, kao što su predgrevanje, termička obrada nakon zavarivanja i drugih mera predostrožnosti, a obično se koristi dodatni materijal sličnog hemijskog sastava. Obzirom na specifičnost primene, pri reparaturnom zavarivanju posebno interventnom zavarivanju, potrebno je voditi računa o parametrima procesa zavarivanja i izboru dodatnih materijala. U radu je izvedena proračunska analiza i predviđanje optimalnih parametara reparaturnog zavarivanja sa ciljem dobijanja kvalitetnog zavarenog spoja sa zahtevanim mehaničkim osobinama bez naknadne termičke obrade. Pored toga izvršen je kontrolni proračun čvrstoće metala šava za dodatni materijal sličnog hemijskog sastava, a na osnovu predloženih parametara zavarivanja., Over the years 13CrMo4-5 (~Č 7400) steel is applied for production of the parts as pressure vessels and pipes in the thermo energetic plants. Steel 13CrMo4-5 is conditionally weldable and it could be successfully welded and weld repaired with the special care and if preheating and post weld heat treating (PWHT) procedure are applied. It is usually welded with similar filler material. In consideration to specific application of the 13CrMo4-5 steel, in the case of breakdown and emergency repair welding, special care have to be taken to defining welding process parameters and selection of the filler materials. In this investigation a results of the calculations and estimations for the repair welding parameters is based on the analytical equations. Analysis is performed to obtaining optimal parameters for sound welded joint with optimal quality and mechanical properties without PWHT of the joint. Also, calculations of the weld metal strength are performed on the base of previously defined welding parameters for the filler metal similar to base metal.",
publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd",
journal = "Zavarivanje i zavarene konstrukcije",
title = "Predviđanje optimalnih parametara interventnog reparaturnog zavarivanja čelika 13CrMo4-5 analitičkim metodama, Optimal parameters estimation by the analytical methods for the emergency repair welding of the 13CrMo4-5 steel",
pages = "96-91",
number = "3",
volume = "55",
url = "https://hdl.handle.net/21.15107/rcub_rims_114"
}
Katavić, B., Jegdić, B., Odanović, Z., Hut, N., Mladenović, M., Jaković, D.,& Ristivojević, M.. (2010). Predviđanje optimalnih parametara interventnog reparaturnog zavarivanja čelika 13CrMo4-5 analitičkim metodama. in Zavarivanje i zavarene konstrukcije
DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 55(3), 91-96.
https://hdl.handle.net/21.15107/rcub_rims_114
Katavić B, Jegdić B, Odanović Z, Hut N, Mladenović M, Jaković D, Ristivojević M. Predviđanje optimalnih parametara interventnog reparaturnog zavarivanja čelika 13CrMo4-5 analitičkim metodama. in Zavarivanje i zavarene konstrukcije. 2010;55(3):91-96.
https://hdl.handle.net/21.15107/rcub_rims_114 .
Katavić, Boris, Jegdić, Bore, Odanović, Zoran, Hut, Nenad, Mladenović, Mladen, Jaković, Dragan, Ristivojević, M., "Predviđanje optimalnih parametara interventnog reparaturnog zavarivanja čelika 13CrMo4-5 analitičkim metodama" in Zavarivanje i zavarene konstrukcije, 55, no. 3 (2010):91-96,
https://hdl.handle.net/21.15107/rcub_rims_114 .

Uticaj parametara EPP postupka zavarivanja na mehaničke osobine spiralno zavarenih cevi od čelika API X60

Šarkočević, Živče; Arsić, Miodrag; Rakin, Marko; Međo, Bojan; Mladenović, Mladen; Jaković, Dragan

(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2009)

TY  - JOUR
AU  - Šarkočević, Živče
AU  - Arsić, Miodrag
AU  - Rakin, Marko
AU  - Međo, Bojan
AU  - Mladenović, Mladen
AU  - Jaković, Dragan
PY  - 2009
UR  - http://rims.institutims.rs/handle/123456789/96
AB  - Izbor čelika, dimenzija i načina proizvodnje zavarenih cevi je deo procesa konstruisanja, jer je u uskoj vezi sa funkcijom cevi kao konstrukcijske celine u određenim uslovima eksploatacije za predviđeni vek trajanja. Kvalitet zavarenih spojeva u procesu proizvodnje cevi definiše se karakteristikama koje one moraju posedovati da bi zadovoljile određene zahteve, što se postiže izborom odgovarajućih postupaka i parametara zavarivanja, sprovođenjem programa kontrole svih tehnoloških operacija u njihovoj izradi i mehaničkim i tehnološkim ispitivanjima otpornosti i deformacije osnovnog materijala i zavarenih spojeva cevi. U radu su prikazani rezultati ispitivanja mehaničkih osobina spiralno zavarenih cevi, za dva proizvodna procesa sa različitim parametrima zavarivanja. Cevi namenjene za naftovode i gasovode su izrađene zavarivanjem pod praškom (EPP) od čelika povećane čvrstoće API X60.
AB  - The selection of steel, the dimensions and methods of seam welded steel tubes fabrication are closely connected to the function of tube as a whole structure in specific working conditions, for a calculated service life. The quality of welded joints in the fabrication process of seam welded tubes is defined by properties the tubes must possess in order to satisfy defined requirements, and can be achieved by choosing appropriate procedures and welding parameters, by following control programmes in all fabricating operations, and through mechanical and technology stress and strain tests of base metal and seam welded joints. The paper presents the results of the mechanical properties of spiral welded pipes, the two production processes with different welding parameters. Tubes designed for oil and gas pipelines are made by welding the powder (EPP) steel increased strength of API X60.
PB  - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
T2  - Zavarivanje i zavarene konstrukcije
T1  - Uticaj parametara EPP postupka zavarivanja na mehaničke osobine spiralno zavarenih cevi od čelika API X60
T1  - Influence of SA procedure welding parameters on mechanical properties spiral welded steel tubes API X60
EP  - 147
IS  - 4
SP  - 141
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_rims_96
ER  - 
@article{
author = "Šarkočević, Živče and Arsić, Miodrag and Rakin, Marko and Međo, Bojan and Mladenović, Mladen and Jaković, Dragan",
year = "2009",
abstract = "Izbor čelika, dimenzija i načina proizvodnje zavarenih cevi je deo procesa konstruisanja, jer je u uskoj vezi sa funkcijom cevi kao konstrukcijske celine u određenim uslovima eksploatacije za predviđeni vek trajanja. Kvalitet zavarenih spojeva u procesu proizvodnje cevi definiše se karakteristikama koje one moraju posedovati da bi zadovoljile određene zahteve, što se postiže izborom odgovarajućih postupaka i parametara zavarivanja, sprovođenjem programa kontrole svih tehnoloških operacija u njihovoj izradi i mehaničkim i tehnološkim ispitivanjima otpornosti i deformacije osnovnog materijala i zavarenih spojeva cevi. U radu su prikazani rezultati ispitivanja mehaničkih osobina spiralno zavarenih cevi, za dva proizvodna procesa sa različitim parametrima zavarivanja. Cevi namenjene za naftovode i gasovode su izrađene zavarivanjem pod praškom (EPP) od čelika povećane čvrstoće API X60., The selection of steel, the dimensions and methods of seam welded steel tubes fabrication are closely connected to the function of tube as a whole structure in specific working conditions, for a calculated service life. The quality of welded joints in the fabrication process of seam welded tubes is defined by properties the tubes must possess in order to satisfy defined requirements, and can be achieved by choosing appropriate procedures and welding parameters, by following control programmes in all fabricating operations, and through mechanical and technology stress and strain tests of base metal and seam welded joints. The paper presents the results of the mechanical properties of spiral welded pipes, the two production processes with different welding parameters. Tubes designed for oil and gas pipelines are made by welding the powder (EPP) steel increased strength of API X60.",
publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd",
journal = "Zavarivanje i zavarene konstrukcije",
title = "Uticaj parametara EPP postupka zavarivanja na mehaničke osobine spiralno zavarenih cevi od čelika API X60, Influence of SA procedure welding parameters on mechanical properties spiral welded steel tubes API X60",
pages = "147-141",
number = "4",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_rims_96"
}
Šarkočević, Ž., Arsić, M., Rakin, M., Međo, B., Mladenović, M.,& Jaković, D.. (2009). Uticaj parametara EPP postupka zavarivanja na mehaničke osobine spiralno zavarenih cevi od čelika API X60. in Zavarivanje i zavarene konstrukcije
DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 54(4), 141-147.
https://hdl.handle.net/21.15107/rcub_rims_96
Šarkočević Ž, Arsić M, Rakin M, Međo B, Mladenović M, Jaković D. Uticaj parametara EPP postupka zavarivanja na mehaničke osobine spiralno zavarenih cevi od čelika API X60. in Zavarivanje i zavarene konstrukcije. 2009;54(4):141-147.
https://hdl.handle.net/21.15107/rcub_rims_96 .
Šarkočević, Živče, Arsić, Miodrag, Rakin, Marko, Međo, Bojan, Mladenović, Mladen, Jaković, Dragan, "Uticaj parametara EPP postupka zavarivanja na mehaničke osobine spiralno zavarenih cevi od čelika API X60" in Zavarivanje i zavarene konstrukcije, 54, no. 4 (2009):141-147,
https://hdl.handle.net/21.15107/rcub_rims_96 .

Analitička procena mogućnosti primene interventnog reparaturnog zavarivanja čelika 13CrMo 4-5

Katavić, Boris; Jegdić, Bore; Odanović, Zoran; Đurđević, Mile; Hut, Nenad; Mladenović, Mladen; Jaković, Dragan

(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2009)

TY  - JOUR
AU  - Katavić, Boris
AU  - Jegdić, Bore
AU  - Odanović, Zoran
AU  - Đurđević, Mile
AU  - Hut, Nenad
AU  - Mladenović, Mladen
AU  - Jaković, Dragan
PY  - 2009
UR  - http://rims.institutims.rs/handle/123456789/95
AB  - Čelik 13CrMo 4-5 (~Č7400) već dugi niz godina se primenjuje za izradu delova termoenergetskih postrojenja kao što su elementi kotlova i cevi. On spada u grupu niskolegiranih konstrukcionih čelika za rad na povišenim temperaturama do 600°C. Čelik 13CrMo 4-5 pripada grupi uslovno zavarljivih čelika, koji mogu uspešno da se zavaruju uz primenu posebnih mera, kao što su predgrevanje, termička obrada nakon zavarivanja i drugih mera predostrožnosti, a zavaruje se sa dodatnim materijalima sličnog hemijskog sastava. U ovom radu je izvršena procena zavarljivosti osnovnog materijala na osnovu analitičkih jednačina i izvršena su ispitivanja na osnovu tehnoloških proba osetljivosti na pojavu prslina (Y i CTS). Kao dodatni materijali u ispitivanjima su korišćene elektrode sličnog hemijskog sastava (Castolin 71D) i austenitne elektrode na bazi nikla (Castolin 2222 Xuper Nucleo Tec). Dobijeni preliminarni rezultati ukazuju, da u slučajevima interventnih popravki zavarivanjem bez dodatne termičke obrade, ne treba koristiti klasične dodatne materijale, zbog mogućnosti pojave prslina u zavarenom spoju, osim u slučaju primene tehnologije sa kontrolisanim unosom toplote, kao i da bi se za interventna zavarivanja mogle koristiti elektrode na bazi nikla, u ovom slučaju Castolin 2222 Xuper Nucleo Tec.
AB  - Over the years steel 13CrMo 4-5 (~Č7400) is applied for production of the parts as pressure vessels and pipes in thermo energetic plants. This steel is from the group of the low alloyed constructional steels for application on elevated temperatures up to 600°C. Steel 13CrMo 4-5 is conditionally weldable steel and could be successfully welded with the special care and application of preheating, post weld heat treating and other precautionary measures. It is usually welded with similar filler material. In consideration to specific application, at repair welding special care have to be taken in defining weld process parameters and selection of filler materials. In this investigations a estimation of the weldability of the steel 13CrMo 4-5 is performed on the base of the analytical equations and technological tests for the crack sensitivities (Y and CTS tests). As filler material a electrodes with similar chemical composition (Castolin 71D) and austenite nickel based alloy (Castolin 2222 Xuper Nucleo Tec) were used. Preliminary results has shown that in case of the emergency repair welding with similar filler material without PWHT, a cracks could be formed in welded joint and application of the controlled deposition method have to be applied. Also, a filler material based on nickel as Castolin 2222 Xuper Nucleo Tec, could be applied.
PB  - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
T2  - Zavarivanje i zavarene konstrukcije
T1  - Analitička procena mogućnosti primene interventnog reparaturnog zavarivanja čelika 13CrMo 4-5
T1  - Analytical estimation of the application potentials for the emergency repair welding of the 13CrMo 4-5 steel
EP  - 155
IS  - 4
SP  - 149
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_rims_95
ER  - 
@article{
author = "Katavić, Boris and Jegdić, Bore and Odanović, Zoran and Đurđević, Mile and Hut, Nenad and Mladenović, Mladen and Jaković, Dragan",
year = "2009",
abstract = "Čelik 13CrMo 4-5 (~Č7400) već dugi niz godina se primenjuje za izradu delova termoenergetskih postrojenja kao što su elementi kotlova i cevi. On spada u grupu niskolegiranih konstrukcionih čelika za rad na povišenim temperaturama do 600°C. Čelik 13CrMo 4-5 pripada grupi uslovno zavarljivih čelika, koji mogu uspešno da se zavaruju uz primenu posebnih mera, kao što su predgrevanje, termička obrada nakon zavarivanja i drugih mera predostrožnosti, a zavaruje se sa dodatnim materijalima sličnog hemijskog sastava. U ovom radu je izvršena procena zavarljivosti osnovnog materijala na osnovu analitičkih jednačina i izvršena su ispitivanja na osnovu tehnoloških proba osetljivosti na pojavu prslina (Y i CTS). Kao dodatni materijali u ispitivanjima su korišćene elektrode sličnog hemijskog sastava (Castolin 71D) i austenitne elektrode na bazi nikla (Castolin 2222 Xuper Nucleo Tec). Dobijeni preliminarni rezultati ukazuju, da u slučajevima interventnih popravki zavarivanjem bez dodatne termičke obrade, ne treba koristiti klasične dodatne materijale, zbog mogućnosti pojave prslina u zavarenom spoju, osim u slučaju primene tehnologije sa kontrolisanim unosom toplote, kao i da bi se za interventna zavarivanja mogle koristiti elektrode na bazi nikla, u ovom slučaju Castolin 2222 Xuper Nucleo Tec., Over the years steel 13CrMo 4-5 (~Č7400) is applied for production of the parts as pressure vessels and pipes in thermo energetic plants. This steel is from the group of the low alloyed constructional steels for application on elevated temperatures up to 600°C. Steel 13CrMo 4-5 is conditionally weldable steel and could be successfully welded with the special care and application of preheating, post weld heat treating and other precautionary measures. It is usually welded with similar filler material. In consideration to specific application, at repair welding special care have to be taken in defining weld process parameters and selection of filler materials. In this investigations a estimation of the weldability of the steel 13CrMo 4-5 is performed on the base of the analytical equations and technological tests for the crack sensitivities (Y and CTS tests). As filler material a electrodes with similar chemical composition (Castolin 71D) and austenite nickel based alloy (Castolin 2222 Xuper Nucleo Tec) were used. Preliminary results has shown that in case of the emergency repair welding with similar filler material without PWHT, a cracks could be formed in welded joint and application of the controlled deposition method have to be applied. Also, a filler material based on nickel as Castolin 2222 Xuper Nucleo Tec, could be applied.",
publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd",
journal = "Zavarivanje i zavarene konstrukcije",
title = "Analitička procena mogućnosti primene interventnog reparaturnog zavarivanja čelika 13CrMo 4-5, Analytical estimation of the application potentials for the emergency repair welding of the 13CrMo 4-5 steel",
pages = "155-149",
number = "4",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_rims_95"
}
Katavić, B., Jegdić, B., Odanović, Z., Đurđević, M., Hut, N., Mladenović, M.,& Jaković, D.. (2009). Analitička procena mogućnosti primene interventnog reparaturnog zavarivanja čelika 13CrMo 4-5. in Zavarivanje i zavarene konstrukcije
DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 54(4), 149-155.
https://hdl.handle.net/21.15107/rcub_rims_95
Katavić B, Jegdić B, Odanović Z, Đurđević M, Hut N, Mladenović M, Jaković D. Analitička procena mogućnosti primene interventnog reparaturnog zavarivanja čelika 13CrMo 4-5. in Zavarivanje i zavarene konstrukcije. 2009;54(4):149-155.
https://hdl.handle.net/21.15107/rcub_rims_95 .
Katavić, Boris, Jegdić, Bore, Odanović, Zoran, Đurđević, Mile, Hut, Nenad, Mladenović, Mladen, Jaković, Dragan, "Analitička procena mogućnosti primene interventnog reparaturnog zavarivanja čelika 13CrMo 4-5" in Zavarivanje i zavarene konstrukcije, 54, no. 4 (2009):149-155,
https://hdl.handle.net/21.15107/rcub_rims_95 .

Mehanička ispitivanja zavarenih spojeva šavnih cevi

Arsić, Miodrag; Aleksić, Vujadin; Mladenović, Mladen

(Komitet za međulaboratorijska ispitivanja materijala, Beograd, 2008)

TY  - CONF
AU  - Arsić, Miodrag
AU  - Aleksić, Vujadin
AU  - Mladenović, Mladen
PY  - 2008
UR  - http://rims.institutims.rs/handle/123456789/854
PB  - Komitet za međulaboratorijska ispitivanja materijala, Beograd
C3  - 14. Savetovanje KOMIM, Čačak, Zbornik (Saopštenje)
T1  - Mehanička ispitivanja zavarenih spojeva šavnih cevi
EP  - 56
SP  - 55
UR  - https://hdl.handle.net/21.15107/rcub_rims_854
ER  - 
@conference{
author = "Arsić, Miodrag and Aleksić, Vujadin and Mladenović, Mladen",
year = "2008",
publisher = "Komitet za međulaboratorijska ispitivanja materijala, Beograd",
journal = "14. Savetovanje KOMIM, Čačak, Zbornik (Saopštenje)",
title = "Mehanička ispitivanja zavarenih spojeva šavnih cevi",
pages = "56-55",
url = "https://hdl.handle.net/21.15107/rcub_rims_854"
}
Arsić, M., Aleksić, V.,& Mladenović, M.. (2008). Mehanička ispitivanja zavarenih spojeva šavnih cevi. in 14. Savetovanje KOMIM, Čačak, Zbornik (Saopštenje)
Komitet za međulaboratorijska ispitivanja materijala, Beograd., 55-56.
https://hdl.handle.net/21.15107/rcub_rims_854
Arsić M, Aleksić V, Mladenović M. Mehanička ispitivanja zavarenih spojeva šavnih cevi. in 14. Savetovanje KOMIM, Čačak, Zbornik (Saopštenje). 2008;:55-56.
https://hdl.handle.net/21.15107/rcub_rims_854 .
Arsić, Miodrag, Aleksić, Vujadin, Mladenović, Mladen, "Mehanička ispitivanja zavarenih spojeva šavnih cevi" in 14. Savetovanje KOMIM, Čačak, Zbornik (Saopštenje) (2008):55-56,
https://hdl.handle.net/21.15107/rcub_rims_854 .

Metodološki princip ispitivanja šavnih cevi i upravljanje otpadom i opasnim materijama

Mladenović, Mladen; Arsić, Miodrag; Aleksić, Vujadin; Vistać, Brane; Veljović, Aleksandar

(2008)

TY  - CONF
AU  - Mladenović, Mladen
AU  - Arsić, Miodrag
AU  - Aleksić, Vujadin
AU  - Vistać, Brane
AU  - Veljović, Aleksandar
PY  - 2008
UR  - http://rims.institutims.rs/handle/123456789/845
C3  - ELECTRA V, Divčibare, Zbornik
T1  - Metodološki princip ispitivanja šavnih cevi i upravljanje otpadom i opasnim materijama
EP  - 262
SP  - 257
UR  - https://hdl.handle.net/21.15107/rcub_rims_845
ER  - 
@conference{
author = "Mladenović, Mladen and Arsić, Miodrag and Aleksić, Vujadin and Vistać, Brane and Veljović, Aleksandar",
year = "2008",
journal = "ELECTRA V, Divčibare, Zbornik",
title = "Metodološki princip ispitivanja šavnih cevi i upravljanje otpadom i opasnim materijama",
pages = "262-257",
url = "https://hdl.handle.net/21.15107/rcub_rims_845"
}
Mladenović, M., Arsić, M., Aleksić, V., Vistać, B.,& Veljović, A.. (2008). Metodološki princip ispitivanja šavnih cevi i upravljanje otpadom i opasnim materijama. in ELECTRA V, Divčibare, Zbornik, 257-262.
https://hdl.handle.net/21.15107/rcub_rims_845
Mladenović M, Arsić M, Aleksić V, Vistać B, Veljović A. Metodološki princip ispitivanja šavnih cevi i upravljanje otpadom i opasnim materijama. in ELECTRA V, Divčibare, Zbornik. 2008;:257-262.
https://hdl.handle.net/21.15107/rcub_rims_845 .
Mladenović, Mladen, Arsić, Miodrag, Aleksić, Vujadin, Vistać, Brane, Veljović, Aleksandar, "Metodološki princip ispitivanja šavnih cevi i upravljanje otpadom i opasnim materijama" in ELECTRA V, Divčibare, Zbornik (2008):257-262,
https://hdl.handle.net/21.15107/rcub_rims_845 .

Otkazi i metodološki pristup sanaciji oštećenja zavarene noseće konstrukcije bagera dreglajna

Arsić, Miodrag; Aleksić, Vujadin; Mladenović, Mladen

(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2006)

TY  - JOUR
AU  - Arsić, Miodrag
AU  - Aleksić, Vujadin
AU  - Mladenović, Mladen
PY  - 2006
UR  - http://rims.institutims.rs/handle/123456789/49
AB  - U radu je na primeru loma i oštećenja sučeono zavarenih spojeva na konstrukciji strele (katarke) bagera dreglajna EŠ 5/45 dat metodološki pristup za analizu uzroka otkaza i saniranje oštećenja. Dati pristup se može primeniti za različite tipove bagera kašikara, a njegova primena u preventivnom održavanju bi doprinela produženju radnog veka bagera.
AB  - The example of break and failures of welded joints of a structure of the arrow at dredger line ES 4/45 and methodological access for analysis faults causes and sanitation failures are presented in this paper. That access may be adapted for other types of spoonful dredger. Application of this methodology in servicing could contribute prolongation of dredger work life.
PB  - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
T2  - Zavarivanje i zavarene konstrukcije
T1  - Otkazi i metodološki pristup sanaciji oštećenja zavarene noseće konstrukcije bagera dreglajna
T1  - Failures and methodological access to sanitation of welded supporting structure of dredger line
EP  - 120
IS  - 3
SP  - 115
VL  - 51
UR  - https://hdl.handle.net/21.15107/rcub_rims_49
ER  - 
@article{
author = "Arsić, Miodrag and Aleksić, Vujadin and Mladenović, Mladen",
year = "2006",
abstract = "U radu je na primeru loma i oštećenja sučeono zavarenih spojeva na konstrukciji strele (katarke) bagera dreglajna EŠ 5/45 dat metodološki pristup za analizu uzroka otkaza i saniranje oštećenja. Dati pristup se može primeniti za različite tipove bagera kašikara, a njegova primena u preventivnom održavanju bi doprinela produženju radnog veka bagera., The example of break and failures of welded joints of a structure of the arrow at dredger line ES 4/45 and methodological access for analysis faults causes and sanitation failures are presented in this paper. That access may be adapted for other types of spoonful dredger. Application of this methodology in servicing could contribute prolongation of dredger work life.",
publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd",
journal = "Zavarivanje i zavarene konstrukcije",
title = "Otkazi i metodološki pristup sanaciji oštećenja zavarene noseće konstrukcije bagera dreglajna, Failures and methodological access to sanitation of welded supporting structure of dredger line",
pages = "120-115",
number = "3",
volume = "51",
url = "https://hdl.handle.net/21.15107/rcub_rims_49"
}
Arsić, M., Aleksić, V.,& Mladenović, M.. (2006). Otkazi i metodološki pristup sanaciji oštećenja zavarene noseće konstrukcije bagera dreglajna. in Zavarivanje i zavarene konstrukcije
DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 51(3), 115-120.
https://hdl.handle.net/21.15107/rcub_rims_49
Arsić M, Aleksić V, Mladenović M. Otkazi i metodološki pristup sanaciji oštećenja zavarene noseće konstrukcije bagera dreglajna. in Zavarivanje i zavarene konstrukcije. 2006;51(3):115-120.
https://hdl.handle.net/21.15107/rcub_rims_49 .
Arsić, Miodrag, Aleksić, Vujadin, Mladenović, Mladen, "Otkazi i metodološki pristup sanaciji oštećenja zavarene noseće konstrukcije bagera dreglajna" in Zavarivanje i zavarene konstrukcije, 51, no. 3 (2006):115-120,
https://hdl.handle.net/21.15107/rcub_rims_49 .