2-D transient dynamic analysis of cracked piezoelectric solids by a time-domain BEM

被引:45
|
作者
Garcia-Sanchu, Felipe [1 ]
Zhang, Chuanzeng [2 ]
Saez, Andres [3 ]
机构
[1] Univ Malaga, Dept Ingn Civil Mat & Fabricac, E-29071 Malaga, Spain
[2] Univ Siegen, Dept Civil Engn, D-57076 Siegen, Germany
[3] Univ Seville, Dept Mecan Med Continuos, Seville 41092, Spain
关键词
piezoelectric solids; dynamic crack analysis; dynamic intensity factors; time-domain BEM; convolution quadrature;
D O I
10.1016/j.cma.2008.02.013
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Transient dynamic crack analysis of two-dimensional (2-D), homogeneous and linear piezoelectric solids is presented in this paper. For this purpose, a time-domain boundary element method (BEM) is developed. The method uses a combination of the strongly singular displacement boundary integral equations (BIEs) and the hypersingular traction BIEs. On the external boundary of the cracked solid strongly singular displacement BIEs are used, while on the crack-faces hypersingular traction BIEs are applied. A convolution quadrature formula is applied for the temporal discretization, while a collocation method is adopted for the spatial discretization. The accuracy of the present time-domain BEM is verified by using numerical results obtained by the finite element method (FEM). Numerical examples are presented and discussed to show the effects of the mechanical and the electrical impact loading on the dynamic intensity factors. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:3108 / 3121
页数:14
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