Electromechanical impact of a crack in a functionally graded piezoelectric medium

被引：94

作者：

Chen, J ^{[1
]}

Liu, ZX

Zou, ZZ

机构：

[1] Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200030, Peoples R China

[2] Harbin Inst Technol, Dept Astronaut Engn & Mech, Harbin 150001, Peoples R China

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2003年 / 39卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0167-8442(02)00137-4

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The Mode-I transient response of a functionally graded piezoelectric medium is solved for a through crack under the in-plane mechanical and electric impact. Integral transforms and dislocation density functions are employed to reduce the problem to singular integral equations. Numerical results display the effects of the loading combination parameter A and the material parameter betaalpha on the dynamic stress intensity factor and electric displacement intensity factor. The energy density factor criterion is applied to obtain the maximum of the minimum energy density factor and the direction of crack initiation. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：47 / 60

页数：14

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