Abstract
The present work studies the interfacial fracture in a piezoelectric cylindrical shell patch. The problem is solved by the methods of infinite trigonometric series and Cauchy singular integral equation, and the numerical results of the stress intensity factor (SIF) are obtained. The effects of the interfacial radius and crack’s location on the SIF are explained through the effects of the free surface, interfacial curvature, crack length, and interface end, respectively. An optimal stiffness matching relationship between the piezoelectric layer and dielectric substrate is suggested. The effects of the piezoelectric and dielectric coefficients are explained through the mechanism of piezoelectric stiffening.
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Li, YD., Xiong, T. & Zhao, H. Interfacial fracture analysis of a piezoelectric–polythene composite cylindrical shell patch under axial shear. Acta Mech 225, 543–551 (2014). https://doi.org/10.1007/s00707-013-0982-3
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DOI: https://doi.org/10.1007/s00707-013-0982-3