PROPAGATION DIRECTION IN LAYERED THERMOELASTIC COMPOSITES WITH THERMAL RELAXATIONS

摘要

The dispersion of thermoelastic harmonic waves propagating in an arbitrary direction in layered orthotropic elastic composite in the context of generalized thermoelasticity with two thermal relaxation times is studied. The three dimensional field equations of generalized thermoelasticity are considered, and the corresponding sixteenth order characteristic determinant is examined. The results for the coupled thermoelasticity can be obtained as particular cases of the obtained results by setting thermal relaxation times equal to zero. Relevant results of previous investigations are deduced as special cases.