Analytical solution of multiple moving cracks in functionally graded piezoelectric strip

被引：0

作者：

RBAGHERI ^{[1
]}

MAYATOLLAHI ^{[1
]}

SMMOUSAVI ^{[2
]}

机构：

[1] Faculty of Engineering, University of Zanjan

[2] Department of Civil and Structural Engineering, Aalto University

来源：

Applied Mathematics and Mechanics(English Edition) | 2015年 / 36卷 / 06期

关键词：

functionally graded; piezoelectric; dislocation density; moving crack; strip;

D O I：

暂无

中图分类号：

O346.1 [断裂理论];

学科分类号：

080102 ;

摘要：

The dynamic behaviors of several moving cracks in a functionally graded piezoelectric(FGP) strip subjected to anti-plane mechanical loading and in-plane electrical loading are investigated. For the first time, the distributed dislocation technique is used to construct the integral equations for FGP materials, in which the unknown variables are the dislocation densities. With the dislocation densities, the field intensity factors are determined. Moreover, the effects of the speed of the crack propagation on the field intensity factors are studied. Several examples are solved, and the numerical results for the stress intensity factor and the electric displacement intensity factor are presented graphically finally.

引用

页码：777 / 792

页数：16

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