貫通き裂を有する圧電セラミックス積層厚板の電気熱弾性解析

概要

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The thermally induced fracture problem for a piezoelectric laminate having a crack under uniform electric and temperature fields is considered. The crack is oriented normal to the interfaces of the laminate. For the case of a crack which ends at the interface between the piezoelectric layer and the elastic layer, the order of the stress singularity around the tip of the crack is obtained. The Fourier transform technique is used to formulate the problem in terms of a singular integral equation. The singular integral equation is solved by using the Gauss-Jacobi integration formula. Numerical calculations are carried out, and the main result presented are the variation of the energy density factors as functions of the geometric parameters and the electrical boundary conditions of the layered composites.
一般社団法人日本機械学会の論文
2003-08-25