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Based on the complex variable method and Stroh formalism, this paper studied the stress and electric displacement field distribution of a functional graded piezoelectric matrix with a piezoelectric fiber. According to the continuous conditions between the piezoelectric matrix and the fiber and using the method of piece-wise homogeneous layers, the stress and electric displacement field of any functional...
The strip dielectric breakdown (DB) model introduced by Zhang and Gao [T.Y. Zhang, C.F. Gao, Fracture behavior of piezoelectric materials, Thero. Appl. Fract. Mech. 41 (2004) 339–379] is used to study the generalized 2D problem of a conductive crack and an electrode in an infinite piezoelectric material. The energy release rate and stress intensity factors are derived based on the Stroh formalism,...
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