Propagation of Plane Waves in a Generalized Thermo-magneto-electro-elastic Medium

Abstract

In the present paper, the governing equations of a generalized thermo-magneto-electro-elastic medium are formulated in the x-z plane. The plane wave solution of these equations indicates the existence of three quasi plane waves, namely, quasi-P, quasi-T and quasi-SV waves. The thermo-magneto-electro-elastic medium is modeled with LiNbO3 for computing the speeds of these plane waves. Effects of the frequency, thermal relaxation time, electric coupling coefficient, magnetic coupling coefficient and angle of propagation on the speeds of these plane waves are observed and shown graphically.