Elasto-plastic fatigue crack growth analysis of plane problems in the presence of flaws using XFEM

被引：28

作者：

Kumar, Sachin ^{[1
]}

Shedbale, A. S. ^{[1
]}

Singh, I. V. ^{[1
]}

Mishra, B. K. ^{[1
]}

机构：

[1] Indian Inst Technol Roorkee, Dept Mech & Ind Engn, Roorkee 247667, Uttar Pradesh, India

来源：

FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING | 2015年 / 9卷 / 04期

关键词：

XFEM; von-Mises yield criterion; isotropic hardening; fatigue crack growth; J-integral; EXTENDED FINITE-ELEMENT; ADAPTIVE MULTISCALE METHOD; MESHFREE METHOD; LEVEL SETS; CLOSURE; SIMULATION; FRACTURE; PROPAGATION; DEFORMATION; INITIATION;

D O I：

10.1007/s11709-015-0305-y

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

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 J-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 J-integral. The fatigue life obtained by EPFM is found quite close to that obtained by LEFM.

引用

页码：420 / 440

页数：21

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