DYNAMIC ANALYSIS OF A PIEZOTHERMOELASTIC LAMINATED PLATE

A theory for dynamic analysis of piezothermoelastic laminated plates is presented in this paper The general dynamic equations, which include mechanical, thermal, and electric effects, are derived based on the anisotropic composite laminated plate theory Analytical dynamic solutions are obtained for the case of general forces acting on a simply supported piezothermoelastic laminated plate. As a special application of the solutions, we examine the harmonic responses to temperature variation and an electric field. Numerical results illustrate that the deformation amplitudes of a laminated plate can be reduced significantly by adding a layer of piezoelectric material with a harmonic electric field. In addition, the frequency spectrum of the plate can explicitly be solved ed for the transversely flexural modes as well as the extensional modes.