GENERAL SOLUTION FOR PIEZOTHERMOELASTIC MATERIALS

A general solution for piezothermoelastic materials is obtained by applying the extended version of Stroh's formulation when all eigenvalues are distinct. When some piezoelectric eigenvalues are equal, the general solution for this degenerate casehas also been given and discussed. Attention is also paid to the case where the heat eigenvalue pair becomes equal to one ormore pairs of the piezoelectric eigenvalues and the particular solution for this degenerate piezot hermoel astic problem is also given. Finally, it is shown that one can make the form of the arbitrary function f_α(z_α) for the degenerate piezotherm oelastic solution the same as that for the undegenerate case except for some parameters included in the form ulation.