Stress field near circular-arc interface crack tip based on electric saturation concept |
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| Authors: | Longchao Dai and Xinwei Wang |
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| Affiliation: | (1) College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China |
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| 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 |
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| Keywords: | piezoelectric material arc crack strip saturation stress intensity factor |
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