Estimate of effective elastic moduli with microcrack interaction effects

被引：55

作者：

Feng, XQ ^{[1
]}

Yu, SW ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Engn Mech, Beijing 100084, Peoples R China

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2000年 / 34卷 / 03期

基金：

中国国家自然科学基金;

关键词：

brittle materials; damage; effective moduli; microcrack interaction;

D O I：

10.1016/S0167-8442(00)00039-2

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A method is developed for estimating the effects of microdefect interaction on the effective elastic properties of heterogeneous solids. An effective medium is defined to calculate the global effective elastic moduli of brittle materials weakened by distributed microcracks. Each microcrack is assumed to be embedded in an effective medium, the compliance of which is obtained from the dilute concentration method without accounting for interaction. The present scheme requires no iteration; it can account for microcrack interaction with sufficient accuracy. Analytical solutions are given for several two- and three-dimension problems with and without anisotropy. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：225 / 233

页数：9

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