文献类型：期刊文献

中文题名：二次应力存在时的J积分和断裂准则

英文题名：J -INTEGRAL PARAMETERS AND FRACTURE CRITERION FOR SECONDARY STRESSES

作者：崔凤麟[1];王志文[1];琚定一[1];李培宁[1]

机构：[1]华东理工大学化工机械研究所

年份：1997

卷号：14

期号：2

起止页码：90

中文期刊名：工程力学

外文期刊名：Engineering Mechanics

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：二次应力;J积分;断裂准则;有限元法

外文关键词：secondary stress, J integral, fracture criterion, finite element method

摘要：本文对二次应力存在时的修正Ｊ积分参量进行了较全面的介绍和总结，用有限元法对各修正Ｊ积分的守恒性及其相互关系进行了比较和讨论，结果表明Ｊ′积分是适用于二次应力存在的具有明确物理意义的最普遍有效断裂参量。
J integral parameters in the presence of secondary stresses are systematically reviewed and studied. Based on the results of elastic-plastic finite element analysis, comparisons and comments on their conservation and relevance are presented. It turned out that J′ integral whose physical meaning is clear for the largest range of conditions is reasonably chosen as the most valid fracture parameter, and a new J′ criterion is established for secondary stresses.