Evaluation of stress intensity factors subjected to arbitrarily distributed tractions on crack surfaces
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论文类型：期刊论文
发表时间：2007-06-01
发表刊物：CHINA OCEAN ENGINEERING
收录刊物：Scopus、ISTIC、EI、SCIE
卷号：21
期号：2
页面范围：293-303
ISSN号：0890-5487
关键字：stress intensity factor; scaled boundary finite element method; surface tractions; anisotropic materials; bimaterial interface
摘要：The stress intensity factors (SIF) considering arbitrarily distributed surface tractions are evaluated based on the scaled boundary finite element method (SRFEM). The semi-analytical solving process for the stress intensity factors including the effects of surface tractions is presented. Provided are the numerical examples for the evaluation of mode I and II stress intensity factors with linear and non-linear distributing forces loaded on the crack surfaces. The crack problems of anisotropy and bimaterial interface are also studied and the stress intensity factors of single-edge-cracked orthotropic material and bi-material interface problems with surface tractions are calculated. Comparisons with the analytical solutions show that the proposed approach is effective and possesses high accuracy.