Screw dislocation interacting with twin interfacial edge cracks between two bonded dissimilar piezoelectric strips

Authors

Xiangfa Wu, Department of Engineering Mechanics, University of Nebraska-LincolnFollow
Yuris A. Dzenis, Department of Engineering Mechanics,University of Nebraska-LincolnFollow
Tian-You Fan, Beijing Institute of Technology, China

Date of this Version

11-2003

Comments

Published in Mechanics Research Communications 30:6 (November-December 2003), pp. 547–555; doi 10.1016/S0093-6413(03)00062-4 Copyright © 2003 Elsevier Ltd. Used by permission. http://www.elsevier.com/wps/product/cws_home/374

Abstract

This paper is concerned with the electroelastic potentials and the fracture parameters of a twin-edge-cracked piezoelectric bimaterial strip with a screw dislocation. By means of conformal mapping technique and the known dislocation solution, the antiplane displacement and inplane electric potentials are obtained in closed-form. The intensity factors and the energy release rate are extracted explicitly. In some limiting cases, the present solutions cover those in the literature.