TY  - CONF
AU  - Arsić, Dušan
AU  - Nikolić, Ružica
AU  - Lazić, Vukić
AU  - Arsić, Aleksandra
AU  - Savić, Zoran
AU  - Djacić, Slaviša
AU  - Hadzima, Branislav
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/372
AB  - Premature damages and fractures of components and structures of bucket-wheel excavators at open-pit mine often occur in exploitation, caused either by inadequate design or insufficient knowledge of the material properties, welded joints and flaws in component production technology. The bucket-wheel excavator, TAKRAF SRs 2000 x 32/5.0 was employed on the excavation of barren soil for 5.000 h (a few weeks more than a year after the assembly) when the fracture of the tooth of the girth gear, which enables the circular motion of the upper structure of the bucket-wheel excavator, occurred. The gear was, according to the manufacturer's certificate, made of the cast steel GS 40 MnCrSi3 V. The paper presents calculations of the stress variations cycles' number for one tooth, as well as of the fracture mechanics parameters - the critical stress intensity factor and critical crack length. It was established that the fracture of the tooth occurred due to an initial crack existing in its base, which originated during the gear's manufacturing, i.e. due to the so-called "manufacturing-in defect".
PB  - Elsevier, Amsterdam
C3  - 13th International Scientific Conference on Sustainable, Modern and Safe Transport (Transcom 2019)
T1  - Analysis of the cause of the girth gear tooth fracture occurrence at the bucket wheel excavator
EP  - 418
SP  - 413
VL  - 40
DO  - 10.1016/j.trpro.2019.07.060
ER  - 

@conference{
author = "Arsić, Dušan and Nikolić, Ružica and Lazić, Vukić and Arsić, Aleksandra and Savić, Zoran and Djacić, Slaviša and Hadzima, Branislav",
year = "2019",
abstract = "Premature damages and fractures of components and structures of bucket-wheel excavators at open-pit mine often occur in exploitation, caused either by inadequate design or insufficient knowledge of the material properties, welded joints and flaws in component production technology. The bucket-wheel excavator, TAKRAF SRs 2000 x 32/5.0 was employed on the excavation of barren soil for 5.000 h (a few weeks more than a year after the assembly) when the fracture of the tooth of the girth gear, which enables the circular motion of the upper structure of the bucket-wheel excavator, occurred. The gear was, according to the manufacturer's certificate, made of the cast steel GS 40 MnCrSi3 V. The paper presents calculations of the stress variations cycles' number for one tooth, as well as of the fracture mechanics parameters - the critical stress intensity factor and critical crack length. It was established that the fracture of the tooth occurred due to an initial crack existing in its base, which originated during the gear's manufacturing, i.e. due to the so-called "manufacturing-in defect".",
publisher = "Elsevier, Amsterdam",
journal = "13th International Scientific Conference on Sustainable, Modern and Safe Transport (Transcom 2019)",
title = "Analysis of the cause of the girth gear tooth fracture occurrence at the bucket wheel excavator",
pages = "418-413",
volume = "40",
doi = "10.1016/j.trpro.2019.07.060"
}

Arsić, D., Nikolić, R., Lazić, V., Arsić, A., Savić, Z., Djacić, S.,& Hadzima, B.. (2019). Analysis of the cause of the girth gear tooth fracture occurrence at the bucket wheel excavator. in 13th International Scientific Conference on Sustainable, Modern and Safe Transport (Transcom 2019)
Elsevier, Amsterdam., 40, 413-418.
https://doi.org/10.1016/j.trpro.2019.07.060

Arsić D, Nikolić R, Lazić V, Arsić A, Savić Z, Djacić S, Hadzima B. Analysis of the cause of the girth gear tooth fracture occurrence at the bucket wheel excavator. in 13th International Scientific Conference on Sustainable, Modern and Safe Transport (Transcom 2019). 2019;40:413-418.
doi:10.1016/j.trpro.2019.07.060 .

Arsić, Dušan, Nikolić, Ružica, Lazić, Vukić, Arsić, Aleksandra, Savić, Zoran, Djacić, Slaviša, Hadzima, Branislav, "Analysis of the cause of the girth gear tooth fracture occurrence at the bucket wheel excavator" in 13th International Scientific Conference on Sustainable, Modern and Safe Transport (Transcom 2019), 40 (2019):413-418,
https://doi.org/10.1016/j.trpro.2019.07.060 . .

TY  - JOUR
AU  - Gašić, V.
AU  - Arsić, Aleksandra
AU  - Flajs, Željko
PY  - 2019
UR  - http://rims.institutims.rs/handle/123456789/357
AB  - The paper deals with experimental study of the stresses at the bolted end-plate moment connection. The design parameters are adopted to include prying effects in joint. A stress level is obtained in the elements where the highest values occur in the tension zone of the end-plate. The accompanied finite element analysis is performed for comparing purposes with experimental results. It is shown that end-plate thickness should be the unavoidable joint parameter in structural analysis of frame-like structures.
PB  - Institut za ispitivanje materijala, Beograd
T2  - Structural Integrity and Life
T1  - Experimental study on the stresses at the i-beam end-plate moment connection
EP  - 57
IS  - 1
SP  - 53
VL  - 19
UR  - https://hdl.handle.net/21.15107/rcub_rims_357
ER  - 

@article{
author = "Gašić, V. and Arsić, Aleksandra and Flajs, Željko",
year = "2019",
abstract = "The paper deals with experimental study of the stresses at the bolted end-plate moment connection. The design parameters are adopted to include prying effects in joint. A stress level is obtained in the elements where the highest values occur in the tension zone of the end-plate. The accompanied finite element analysis is performed for comparing purposes with experimental results. It is shown that end-plate thickness should be the unavoidable joint parameter in structural analysis of frame-like structures.",
publisher = "Institut za ispitivanje materijala, Beograd",
journal = "Structural Integrity and Life",
title = "Experimental study on the stresses at the i-beam end-plate moment connection",
pages = "57-53",
number = "1",
volume = "19",
url = "https://hdl.handle.net/21.15107/rcub_rims_357"
}

Gašić, V., Arsić, A.,& Flajs, Ž.. (2019). Experimental study on the stresses at the i-beam end-plate moment connection. in Structural Integrity and Life
Institut za ispitivanje materijala, Beograd., 19(1), 53-57.
https://hdl.handle.net/21.15107/rcub_rims_357

Gašić V, Arsić A, Flajs Ž. Experimental study on the stresses at the i-beam end-plate moment connection. in Structural Integrity and Life. 2019;19(1):53-57.
https://hdl.handle.net/21.15107/rcub_rims_357 .

Gašić, V., Arsić, Aleksandra, Flajs, Željko, "Experimental study on the stresses at the i-beam end-plate moment connection" in Structural Integrity and Life, 19, no. 1 (2019):53-57,
https://hdl.handle.net/21.15107/rcub_rims_357 .