SCATTERING OF ANTI-PLANE SHEAR WAVES IN A FUNCTIONALLY GRADED MATERIAL STRIP WITH AN OFF-CENTER VERTICAL CRACK

被引：0
|
作者：
李琳 [1 ]
周振功 [1 ]
王彪 [2 ]
机构：
[1] Center for Composite Materials Harbin Institute of Technology,Harbin 150001,P. R. China
[2] School of Physics and Engineering Sun Yat-Sen University,Guangzhou 510275,P. R. China
来源：
AppliedMathematicsandMechanics(EnglishEdition) | 2006年 / 06期
基金：
中国国家自然科学基金;
关键词：
crack; elastic waves; functionally graded materials;
D O I：
暂无
中图分类号：
O346 [强度理论];
学科分类号：
080102 ;
摘要：
The scattering problem of anti-plane shear waves in a functionally graded material strip with an off-center crack is investigated by use of Schmidt method. The crack is vertically to the edge of the strip. By using the Fourier transform, the problem can be solved with the help of a pair of dual integral equations that the unknown variable is the jump of the displacement across the crack surfaces. To solve the dual integral equations, the jump of the displacement across the crack surfaces was expanded in a series of Jacobi polynomials. Numerical examples were provided to show the effects of the parameter describing the functionally graded materials, the position of the crack and the frequency of the incident waves upon the stress intensity factors of the crack.
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页码：731 / 739
页数：9
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