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A Half-Infinite Coupled Crack on an Interface of Piezoelectric Bimaterials Without Oscillation

Published online by Cambridge University Press:  05 May 2011

Xinhua Yang*
Affiliation:
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China State Key Laboratory of structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian 116023, China
Chuanyao Chen*
Affiliation:
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China State Key Laboratory of structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian 116023, China
Yuantai Hu*
Affiliation:
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China State Key Laboratory of structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian 116023, China
Guoqing Li*
Affiliation:
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China State Key Laboratory of structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian 116023, China
*
* Associate Professor
** Professor
** Professor
* Associate Professor
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Abstract

Based on Stroh's formalism, analytic solutions are derived for a half-infinite coupled crack in piezoelectric bimaterials without oscillation by using analytical function technique. Four intensity factors related to the crack tip fields are obtained. It is found that these intensity factors are independent of the bimaterials constants when no oscillation occurs. Some numerical calculations about the stress tensor and the electric field ahead of the crack tip are conducted finally.

Type
Articles
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2003

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References

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