《结构与土木工程前沿（英文）》
>> 2015年
第9卷
第4期
doi:
10.1007/s11709-015-0305-y
RESEARCH ARTICLE
Elasto-plastic fatigue crack growth analysis of plane problems in the presence of flaws using XFEM
Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
录用日期：
2015-11-20
发布日期：
2015-11-26
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摘要
In this paper, elasto-plastic XFEM simulations have been performed to evaluate the fatigue life of plane crack problems in the presence of various defects. The stress-strain response of the material is modeled by Ramberg-Osgood equation. The von-Mises failure criterion has been used with isotropic hardening. The -integral for two fracture modes (mode-I and mode-II) is obtained by decomposing the displacement and stress fields into their symmetric and antisymmetric parts, then individual stress intensity factors are extracted from -integral. The fatigue life obtained by EPFM is found quite close to that obtained by LEFM.
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