In order to prevent the premature failure of steam pipeline produced of molybdenum-vanadium steel, the experimental tests were performed to measure fracture toughness and to determine the mechanical behaviour of cracked pipes. A finite element method was used to calculate the fracture behaviour of the pressurized pipeline made of 14MoV6-3 steel based on the J-integral computation. The J-R curves were experimentally obtained by the elastic unloading compliance method for the single edge notched bend specimens and compared with those obtained using finite element method. A two dimensional finite element analysis was performed in Ansys Workbench software to determine the stress distribution and calculate J-integral values for the selected specimen geometry. Special attention was paid to the influence of applied boundary conditions on the accuracy of J-integral values, as well as to the influence of mesh density. It is shown that numerically obtained J-values significantly depend on the nu...mber of nodes used to apply displacements. However, if recommendations proposed in this paper are implemented, the accuracy of calculated values is satisfactory and successful failure analysis can be carried out. This approach can be useful in engineering applications where time saving and costs reducing are required.
This is the peer-reviewed version of the following article: Aleksić B, Grbović A, Milović L, Hemer A, Aleksić V. Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline. Engineering Failure Analysis. 2019;106.
doi:10.1016/j.engfailanal.2019.104165
TY - JOUR
AU - Aleksić, Bojana
AU - Grbović, Aleksandar
AU - Milović, Ljubica
AU - Hemer, Abubkr
AU - Aleksić, Vujadin
PY - 2019
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5034
AB - In order to prevent the premature failure of steam pipeline produced of molybdenum-vanadium steel, the experimental tests were performed to measure fracture toughness and to determine the mechanical behaviour of cracked pipes. A finite element method was used to calculate the fracture behaviour of the pressurized pipeline made of 14MoV6-3 steel based on the J-integral computation. The J-R curves were experimentally obtained by the elastic unloading compliance method for the single edge notched bend specimens and compared with those obtained using finite element method. A two dimensional finite element analysis was performed in Ansys Workbench software to determine the stress distribution and calculate J-integral values for the selected specimen geometry. Special attention was paid to the influence of applied boundary conditions on the accuracy of J-integral values, as well as to the influence of mesh density. It is shown that numerically obtained J-values significantly depend on the number of nodes used to apply displacements. However, if recommendations proposed in this paper are implemented, the accuracy of calculated values is satisfactory and successful failure analysis can be carried out. This approach can be useful in engineering applications where time saving and costs reducing are required.
PB - Elsevier Ltd
T2 - Engineering Failure Analysis
T1 - Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline
SP - 104165
VL - 106
DO - 10.1016/j.engfailanal.2019.104165
ER -
@article{
author = "Aleksić, Bojana and Grbović, Aleksandar and Milović, Ljubica and Hemer, Abubkr and Aleksić, Vujadin",
year = "2019",
abstract = "In order to prevent the premature failure of steam pipeline produced of molybdenum-vanadium steel, the experimental tests were performed to measure fracture toughness and to determine the mechanical behaviour of cracked pipes. A finite element method was used to calculate the fracture behaviour of the pressurized pipeline made of 14MoV6-3 steel based on the J-integral computation. The J-R curves were experimentally obtained by the elastic unloading compliance method for the single edge notched bend specimens and compared with those obtained using finite element method. A two dimensional finite element analysis was performed in Ansys Workbench software to determine the stress distribution and calculate J-integral values for the selected specimen geometry. Special attention was paid to the influence of applied boundary conditions on the accuracy of J-integral values, as well as to the influence of mesh density. It is shown that numerically obtained J-values significantly depend on the number of nodes used to apply displacements. However, if recommendations proposed in this paper are implemented, the accuracy of calculated values is satisfactory and successful failure analysis can be carried out. This approach can be useful in engineering applications where time saving and costs reducing are required.",
publisher = "Elsevier Ltd",
journal = "Engineering Failure Analysis",
title = "Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline",
pages = "104165",
volume = "106",
doi = "10.1016/j.engfailanal.2019.104165"
}
Aleksić, B., Grbović, A., Milović, L., Hemer, A.,& Aleksić, V.. (2019). Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline. in Engineering Failure Analysis
Elsevier Ltd., 106, 104165.
https://doi.org/10.1016/j.engfailanal.2019.104165
Aleksić B, Grbović A, Milović L, Hemer A, Aleksić V. Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline. in Engineering Failure Analysis. 2019;106:104165.
doi:10.1016/j.engfailanal.2019.104165 .
Aleksić, Bojana, Grbović, Aleksandar, Milović, Ljubica, Hemer, Abubkr, Aleksić, Vujadin, "Numerical simulation of fatigue crack propagation: A case study of defected steam pipeline" in Engineering Failure Analysis, 106 (2019):104165,
https://doi.org/10.1016/j.engfailanal.2019.104165 . .
