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Eccentric crack in a piezoelectric strip bonded to half planes
Authors:Jeong Woo Shin  Kang Yong Lee  
Institution:a Korea Aerospace Research Institute, 52 Oun-dong Yusong-gu, Taejon 306-333, South Korea;b Department of Mechanical Engineering, Yonsei University, Seoul 120-749, South Korea
Abstract:We consider the problem of determining the singular stresses and electric fields in a piezoelectric ceramic strip containing an eccentric Griffith crack off the centre line bonded to two elastic half planes under anti-plane shear loading using the continuous crack-face condition. 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. Numerical values on the stress intensity factor and energy release rate are obtained.
Keywords:eccentric crack  piezoelectric strip  field intensity factors  energy release rate  integral transform
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