TY  - JOUR
AU  - Međo, Bojan
AU  - Rakin, Marko
AU  - Zrilić, Milorad
AU  - Putić, Slaviša
AU  - Sedmak, Aleksandar
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1460
AB  - We analyze the level of damage to 14MoV63 steel for steam pipelines under the conditions of crack-growth initiation according to the mechanism of ductile fracture. The state of the material after service for about 100,000 h at the power plant is estimated by using a combined experimental and numerical procedure based on the local approach to fracture. The level of damage is determined by analyzing the material taken from the pipeline (aged) and new (virgin) material of the same grade (for the sake of comparison). The critical values of the J-integral are determined on single-edge notched bend (SENB) specimens both experimentally and by using a simplified procedure of local approach without knowing the microstructural parameters. Two micromechanical models are applied: the Rice - Tracey models modified by Beremin (uncoupled) and the complete Gurson model (coupled).
PB  - Springer, New York
T2  - Materials Science
T1  - Micromechanical estimates of the critical values of j-integral for the steel of steam pipelines
EP  - 531
IS  - 4
SP  - 523
VL  - 45
DO  - 10.1007/s11003-010-9210-7
ER  - 

@article{
author = "Međo, Bojan and Rakin, Marko and Zrilić, Milorad and Putić, Slaviša and Sedmak, Aleksandar",
year = "2009",
abstract = "We analyze the level of damage to 14MoV63 steel for steam pipelines under the conditions of crack-growth initiation according to the mechanism of ductile fracture. The state of the material after service for about 100,000 h at the power plant is estimated by using a combined experimental and numerical procedure based on the local approach to fracture. The level of damage is determined by analyzing the material taken from the pipeline (aged) and new (virgin) material of the same grade (for the sake of comparison). The critical values of the J-integral are determined on single-edge notched bend (SENB) specimens both experimentally and by using a simplified procedure of local approach without knowing the microstructural parameters. Two micromechanical models are applied: the Rice - Tracey models modified by Beremin (uncoupled) and the complete Gurson model (coupled).",
publisher = "Springer, New York",
journal = "Materials Science",
title = "Micromechanical estimates of the critical values of j-integral for the steel of steam pipelines",
pages = "531-523",
number = "4",
volume = "45",
doi = "10.1007/s11003-010-9210-7"
}

Međo, B., Rakin, M., Zrilić, M., Putić, S.,& Sedmak, A.. (2009). Micromechanical estimates of the critical values of j-integral for the steel of steam pipelines. in Materials Science
Springer, New York., 45(4), 523-531.
https://doi.org/10.1007/s11003-010-9210-7

Međo B, Rakin M, Zrilić M, Putić S, Sedmak A. Micromechanical estimates of the critical values of j-integral for the steel of steam pipelines. in Materials Science. 2009;45(4):523-531.
doi:10.1007/s11003-010-9210-7 .

Međo, Bojan, Rakin, Marko, Zrilić, Milorad, Putić, Slaviša, Sedmak, Aleksandar, "Micromechanical estimates of the critical values of j-integral for the steel of steam pipelines" in Materials Science, 45, no. 4 (2009):523-531,
https://doi.org/10.1007/s11003-010-9210-7 . .

TY  - JOUR
AU  - Međo, Bojan
AU  - Rakin, Marko
AU  - Gubeljak, Nenad
AU  - Sedmak, Aleksandar
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1364
AB  - Ductile fracture process includes three stages: void nucleation, their growth and coalescence. The voids nucleate due to the fracture or separation of non-metallic inclusions and secondary-phase particles from the material matrix. Micromechanical models based on the Gurson plastic flow criterion are often used for analysis of ductile fracture. They consider the material as a porous medium in which the effect of voids on the stress-strain state and plastic flow cannot be neglected. Another important property of the Gurson criterion is that the hydrostatic stress component influences the plastic flow of the material.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
T2  - Key Engineering Materials
T1  - Application of Complete Gurson Model for prediction of ductile fracture in welded steel joints
EP  - 20
SP  - 13
VL  - 399
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1364
ER  - 

@article{
author = "Međo, Bojan and Rakin, Marko and Gubeljak, Nenad and Sedmak, Aleksandar",
year = "2009",
abstract = "Ductile fracture process includes three stages: void nucleation, their growth and coalescence. The voids nucleate due to the fracture or separation of non-metallic inclusions and secondary-phase particles from the material matrix. Micromechanical models based on the Gurson plastic flow criterion are often used for analysis of ductile fracture. They consider the material as a porous medium in which the effect of voids on the stress-strain state and plastic flow cannot be neglected. Another important property of the Gurson criterion is that the hydrostatic stress component influences the plastic flow of the material.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Key Engineering Materials",
title = "Application of Complete Gurson Model for prediction of ductile fracture in welded steel joints",
pages = "20-13",
volume = "399",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1364"
}

Međo, B., Rakin, M., Gubeljak, N.,& Sedmak, A.. (2009). Application of Complete Gurson Model for prediction of ductile fracture in welded steel joints. in Key Engineering Materials
Trans Tech Publications Ltd, Durnten-Zurich., 399, 13-20.
https://hdl.handle.net/21.15107/rcub_technorep_1364

Međo B, Rakin M, Gubeljak N, Sedmak A. Application of Complete Gurson Model for prediction of ductile fracture in welded steel joints. in Key Engineering Materials. 2009;399:13-20.
https://hdl.handle.net/21.15107/rcub_technorep_1364 .

Međo, Bojan, Rakin, Marko, Gubeljak, Nenad, Sedmak, Aleksandar, "Application of Complete Gurson Model for prediction of ductile fracture in welded steel joints" in Key Engineering Materials, 399 (2009):13-20,
https://hdl.handle.net/21.15107/rcub_technorep_1364 .