Interface crack interacting with a microvoid in the near-tip process zone

被引：4

作者：

Han J.-J. ^{[1
]}

Chen Y.-H. ^{[1
]}

机构：

[1] Sch. of Civil Engrg. and Mechanics, Xi'an Jiaotong University

来源：

International Journal of Fracture | 2000年 / 102卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Interaction; Interface; J-integral; Macrocrack; Microvoid; Shielding;

D O I：

10.1023/A:1007479717979

中图分类号：

学科分类号：

摘要：

This paper deals with the elastic problem of an interface macrocrack interacting with a near-tip microvoid in the process zone. The 'pseudo-traction-edge-dislocation method' (abbreviated PTEDM) proposed by Zhao and Chen (1996) is extended to treat the macrocrack-microvoid interaction problem in bimaterial solids. A system of singular integral equations with Hilbert kernel is reduced and solved numerically, which provides a fundamental understanding of the interaction effect. Numerical results are given for six kinds of bimaterial combinations (Hutchinson, Meer and Rice, 1987). The J-integral analysis is also applied to the interaction problem, and some useful conclusions are presented in detail.; This paper deals with the elastic problem of an interface macrocrack interacting with a near-tip microvoid in the process zone. The `pseudo-traction-edge-dislocation method' (abbreviated PTEDM) proposed by Zhao and Chen (1996) is extended to treat the macrocrack-microvoid interaction problem in bimaterial solids. A system of singular integral equations with Hilbert kernel is reduced and solved numerically, which provides a fundamental understanding of the interaction effect. Numerical results are given for six kinds of bimaterial combinations. The J-integral analysis is also applied to the interaction problem, and some useful conclusions are presented in detail.

引用

页码：223 / 244

页数：21

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