| Special Issue (Piezoelctricity, Acoustic Waves and Devices Applications) |
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| A generalized plane strain theory for transversely isotropic piezoelectric plates |
| XU Si-peng, WANG Wei |
| Department of Mechanics and Engineering Science, Peking University, Beijing 100871, China |
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Abstract Study of generalized plane strain has so far been limited to elasticity. The present is aimed at parallel development of transversely isotropic piezoelasticity. By assuming that the along depth distribution of electric potential is linear, and that commonly used Kane-Mindlin kinematical assumption is valid, two dimensional solution systems were deduced, for which, explicit solutions of the out-of-plane constraint factor, as well as the stress resultant concentration factor around a circular hole in a transversely isotropic piezoelectric plate subjected to remote biaxial tension are obtained. Comparisons of these formulas with their counterparts for elastic case yielded suggestions that whether the piezoelectric effect exacerbates or mitigates the stress resultant concentration greatly depends on material properties, particularly, the piezoelectric coefficients; the effect of plate thickness was extensively investigated.
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Received: 20 March 2005
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