Abstract
This paper is concerned with the numerical treatment of one-spatial dimensional generalized piezothermoelastic wave propagations in piezoelectric plates subjected to thermo-electro-mechanical loadings. The governing equations are based on the coupled generalized theory of piezothermoelectricity along with the modified Fourier law. The governing equations are expressed by a set of first-order partial differential equations with particle velocity, stress, electric field intensity, heat flux and temperature as the unknown variables. The solutions are obtained numerically by the method of characteristics. The numerical calculations are carried out for PZT-4 and non-piezoelectric plates subjected to ramp-type surface heating and internal heat generation by the laser-pulse heating.
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