A 2-DIMENSIONAL PIEZOTHERMOELASTIC PROBLEM IN AN ORTHOTROPIC PLATE EXHIBITING CRYSTAL CLASS MM2

In the beginning of paper, a solution technique for two-dimensional piezothermoelastic problems in orthotropic solids of crystal class mm2 is proposed. The solution technique is formulated in terms of two piezothermoelastic potential functions, three piezoelastic potential functions and a single piezoelectric potential function. Next, by using the solution technique, a two-dimensional piezothermoelastic problem in an orthotropic thin plate of crystal class mm2 which is subjected to heating on one surface and electric surface charge on both surfaces is analyzed. The numerical calculations are carried out for cadmium selenide exhibiting class mm2 symmetry. The elastic displacements and stresses are compared with those obtained for a similar thermoelastic problem without the piezoeffect. The effects of the electric surface charge on the elastic displacements, stresses, electric potential, electric field intensities and electric displacements are also investigated.