Transient response of a center crack in a functionally graded piezoelectric strip under electromechanical impact

被引：31

作者：

Ueda, S. ^{[1
]}

机构：

[1] Osaka Inst Technol, Fac Engn, Dept Mech Engn, Asahi Ku, Osaka 3538585, Japan

来源：

ENGINEERING FRACTURE MECHANICS | 2006年 / 73卷 / 11期

关键词：

electroelasticity; dynamic fracture mechanics; functionally graded piezoelectric strip; integral transform;

D O I：

10.1016/j.engfracmech.2006.01.025

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The dynamic fracture problem for a functionally graded piezoelectric strip containing a center crack parallel to the free boundaries is considered in this study. It is assumed that the electroelastic properties of the medium vary continuously in the thickness direction, and that the strip is under in-plane mechanical and electric impact loadings. Integral transform techniques and dislocation density functions are employed to reduce the problem to the solutions of a system of singular integral equations. The dynamic stress and electric displacement intensity factors versus time are presented for various values of dimensionless parameters representing the crack size, the material nonhomogeneity and the loading combination, (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1455 / 1471

页数：17

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