Influence of Gravity and Hydrostatic Initial Stress on Wave Propagation in Context of Three Phase Lag Thermoelasticity

The prime objective of this research paper is to study the impact of gravity, hydrostatic initial stress and magnetic field on the wave propagation in the context of three phase lag (TPL) model with two temperature for magneto-thermoelastic medium. The governing equations of three phase lag (TPL) model have been solved by normal mode analysis to deduce the exact expression of displacement and stress variables. The physical quantities for Cobalt material have been used for the graphical representation in the presence and absence of gravity field. The results have been compared in the context of three phase lag (TPL) model and Lord–Shulman (L–S) theory with distinct values of both magnetic field and hydrostatic initial stress. It has been observed that there is significant effect of field quantities under the three phase lag (TPL) model and Lord–Shulman (L–S) theory.