Energy domain integral applied to solve center and double-edge crack problems in three-dimensions

被引：12

作者：

Cisilino, AP

Aliabadi, MH

Otegui, JL

机构：

[1] Univ London Queen Mary & Westfield Coll, Dept Engn, London E1 4NS, England

[2] Univ Nacl Mar del Plata, INTEMA, CONICET, RA-7600 Mar Del Plata, Argentina

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 1998年 / 29卷 / 03期

关键词：

D O I：

10.1016/S0167-8442(98)00029-9

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A three-dimensional Boundary Element Method (BEM) implementation of the energy domain integral for the numerical computation of the crack energy release rate is presented in this paper. The domain expression of the energy release rate is naturally compatible with the BEM, since stresses, strains and derivatives of displacements at internal points can be evaluated using the appropriate boundary integral equations. The pointwise crack energy release rate is evaluated along the three-dimensional crack front over a cylindrical domains that surround a segment of the crack front. The accuracy of the implementation is demonstrated by solving several problems, which include geometries containing straight as well as curved crack fronts. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：181 / 194

页数：14

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