Micromechanical analysis of microcrack-induced residual strains in quasi-brittle solids

被引：6
作者：
Feng, XQ [1 ]
Gross, D
机构：
[1] Tsing Hua Univ, Dept Engn Mech, Beijing 100084, Peoples R China
[2] Tech Univ Darmstadt, Inst Mech, D-64289 Darmstadt, Germany
来源：
COMPUTATIONAL MATERIALS SCIENCE | 1999年 / 16卷 / 1-4期
关键词：
fracture mechanisms; microcracking; microstructures; constitutive behavior; inhomogeneous material; residual strain;
D O I：
10.1016/S0927-0256(99)00079-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A three-dimensional micromechanical damage model that enables the simulation of mechanical response of microcrack-weakened quasi-brittle solids is presented. The occurrence of residual strains is attributed to two reasons, namely, the release of preexisting residual stresses due to microcracking and the microscopic plastic deformation near crack rips. An approximate scheme is proposed to estimate effects of microcrack interaction on the overall effective moduli of a quasi-brittle material subjected to complex loading. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
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页码：362 / 371
页数：10
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