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Steady State Crack Propagation Behavior in a Piezoelectric Strip Bonded to Elastic Materials

탄성체에 접합된 압전 스트립에서의 균열 전파 거동

  • Published : 2002.02.01

Abstract

In this paper, we consider the dynamic electromechanical behavior of an eccentric Yoffe permeable crack in a piezoelectric ceramic strip sandwiched between two elastic orthotropic materials under the combined anti-plane mechanical shear and in-plane electrical loadings. Fourier transforms are used to reduce the problem to the solution of two pairs of dual integral equations, which are then expressed to a Fredholm integral equation of the second kind. The initial crack propagation orientation for PZT-5H piezoceramics is predicted by maximum energy release rate criterion.

Keywords

Piezoelectric Material;Crack Propagation;Integral Transform;Intensity factor;Dynamic Energy Release Rate

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