Solutions for transversely isotropic piezoelectric infinite body, semi-infinite body and bimaterial infinite body subjected to uniform ring loading and charge

Based on the fundamental solutions for transversely isotropic piezoelectric materials, the fundamental solutions of axisymmetric problems are derived by integration and explicit expressions for three possible cases of differe nt characteristic roots and multiple roots are all presented. In the case o f s(1) not equal s(2) not equal s(3) not equal s(1), based on the Green's f unctions for semi-infinite piezoelectric body and bimaterial infinite piezo electric body, the Green's functions for axisymmetric problems of semi-infi nite body and bimaterial infinite body are obtained. Taking PZT-4 as an exa mple, numerical computations are conducted by use of the fundamental soluti ons to axisymmetric problems. Comparison of the calculated results with tho se of FEM shows good agreement between them. (C) 1999 Elsevier Science Ltd. All rights reserved.