TREATMENT OF BIMATERIAL INTERFACE CRACK PROBLEMS USING THE BOUNDARY ELEMENT METHOD

被引：74
作者：
TAN, CL
GAO, YL
机构：
[1] Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa
来源：
ENGINEERING FRACTURE MECHANICS | 1990年 / 36卷 / 06期
关键词：
D O I：
10.1016/0013-7944(90)90268-L
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Quadratic quarter-point crack-tip elements are introduced in the two-dimensional boundary element analysis of problems in which a crack lies along the interface of dissimilar elastic materials. Such problems present some modelling difficulties using conventional procedures because the stresses are oscillatorily singular in the neighbourhood of the crack-tip. Analytical expressions relating the stress intensity factor to the computed displacements of the crack-tip element or to the computed crack-tip nodal tractions are derived and their veracity demonstrated with some examples. Numerical results, compared with exact solutions where possible, are accurate even with relatively coarse mesh designs. © 1990.
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页码：919 / 932
页数：14
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