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Journal of Zhejiang University SCIENCE A 2006 Vol.7 No.8 P.1336~1342


Finite element simulation of stress intensity factors in elastic-plastic crack growth

Author(s):  ALSHOAIBI Abdulnaser M., ARIFFIN Ahmad Kamal

Affiliation(s):  Computational Mechanics Research Group, Department of Mechanical and Materials Engineering, Faculty of Engineering, Universiiy Kebangsaan Malaysia, Bangi 43600, Malaysia

Corresponding email(s):   alhager01@yahoo.com

Key Words:  Crack propagation, Nodal displacement, Stress intensity factor, Adaptive mesh, Finite element method (FEM)

ALSHOAIBI Abdulnaser M., ARIFFIN Ahmad Kamal. Finite element simulation of stress intensity factors in elastic-plastic crack growth[J]. Journal of Zhejiang University Science A, 2006, 7(8): 1336~1342.

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%A ARIFFIN Ahmad Kamal
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A1336

T1 - Finite element simulation of stress intensity factors in elastic-plastic crack growth
A1 - ALSHOAIBI Abdulnaser M.
A1 - ARIFFIN Ahmad Kamal
J0 - Journal of Zhejiang University Science A
VL - 7
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SP - 1336
EP - 1342
%@ 1673-565X
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2006.A1336

A finite element program developed elastic-plastic crack propagation simulation using Fortran language. At each propagation step, the adaptive mesh is automatically refined based on a posteriori h-type refinement using norm stress error estimator. A rosette of quarter-point elements is then constructed around the crack tip to facilitate the prediction of crack growth based on the maximum normal stress criterion and to calculate stress intensity factors under plane stress and plane strain conditions. Crack was modelled to propagate through the inter-element in the mesh. Some examples are presented to show the results of the implementation.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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