Gravity effect in a piezo-thermoelastic diffusive medium with dual-phase-lag model

The model of generalized thermoelasticity, with the dual-phase-lag theory (DPL), is applied to study the influence of gravity on a piezo-thermoelastic diffusive medium. Normal mode analysis is used to obtain the exact expressions for different physical quantities. The derived expressions are computed numerically and the results are presented in graphical form. Comparisons are made with the results predicted by the Lord-Shulman theory (LS) and the DPL model in the presence and absence of gravity. © 2023 World Scientific Publishing Europe Ltd.