Control of Transient Thermoelastic Displacement of a Rectangular Composite Plate Constructed of a Cross-Ply Laminate and a Piezoelectric Material.

Abstract

In this study, the theoretical analysis of a control of transient thermoelastic displacement is developed for a rectangular composite plate constructed of a cross-ply laminate and a piezoelectric material due to nonuniform heat supply. By using the exact solutions for cross-ply laminate and piezoelectric plate of crystal class mm2, the theoretical analysis of a three-dimensional transient piezothermoelasticity is developed for a simple supported combined plate. Analysis of a piezothermoelastic problem leads to an appropriate electric potential applied to the piezoelectric plate which suppresses the induced thermoelastic displacement in the thickness direction at the midpoint on the free surface of the cross-ply laminate. Some numerical results for the temperature change, the displacement, the stress in a transient state when the transient thermoelastic displacement is controlled are shown in figures.