边界单元法计算异弹模界面裂缝应力强度因子(英文)  

Boundary Element Computation of Stress Intensity Factors for Crack at Bimaterial

作　　者：张五岳 周蔚晴 周鸿钧[3] 

机构地区：[1]河南省水电公司,河南郑州450003 [2]河南省建筑安装总公司,河南郑州450002 [3]郑州工业大学水利与环境工程学院,河南郑州450002

出　　处：《郑州工业大学学报》2001年第2期50-53,共4页Journal of Zhengzhou University of Technology

基　　金：theNaturalScienceFoundationofHenanProvince(0 1110 4140 0 )

摘　　要：利用双区域边界元法计算界面裂缝缝端应力场 ,用缝端应力强度因子KⅠ 与应力的关系式求得KⅠ -γ曲线 (r为极坐标 ) ,从而求得r=0处的应力强度因子 .算例表明 ,边界元法是计算界面裂缝的有效方法 .Using multi-region Boundary Element Method to get the stress field at the vicinity of a crack, from the relationship between the stress intensity factors K Ⅰ at bimaterial interface crack tip and the stresses calculated previously, one can get curve K Ⅰ- r (r is the polar coordinate), and furthermore, one can get the stress intensity factors from r =0. Examples indicates that Boundary Element Method is a valid methed to bimeterial interface crack.

关 键 词：双区域边界元法 应力强度因子 界面裂缝 异弹模 应力场 计算 

分 类 号：O346.1[理学—固体力学]