RESEARCH ARTICLE

Stress field near circular-arc interface crack tip based on electric saturation concept

  • Longchao DAI ,
  • Xinwei WANG
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  • College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received date: 10 Nov 2008

Accepted date: 01 Dec 2008

Published date: 05 Sep 2009

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg

Abstract

Within the framework of nonlinear electroelasticity, the anti-plane problem of a circular-arc interfacial crack between a circular piezoelectric inhomogeneity and an infinite piezoelectric matrix subjected to a far-field uniform loading is investigated by an electrical strip saturation model, the complex variable method, and the method of analytical continuation. Explicit closed form expressions for the complex potentials in both the matrix and the inclusion, and the stress intensity factor at the crack tip are presented. Comparison with some related solutions based on the linear electroelastic theory shows the validity of the present solutions

Cite this article

Longchao DAI , Xinwei WANG . Stress field near circular-arc interface crack tip based on electric saturation concept[J]. Frontiers of Mechanical Engineering, 2009 , 4(3) : 320 -325 . DOI: 10.1007/s11465-009-0042-9

Acknowledgements

The study was supported by Jiangsu Science and Technology Innovation Program for Universities’ Graduate Students (XM06-41).
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