Thermoelastic Interaction in a Functionally Graded Medium Due to Refined Three-Phase-Lag Green–Naghdi Model under Gravitational Field

Abstract

This study investigates the wave propagation of a two-dimensional functionally graded material (FGM) thermoelastic half-space under the influence of inclined load, gravitational force and thermal loading from a laser pulse in the context of refined three-phase-lag Green–Naghdi (GN) model. Normal mode analysis has been used to obtain the analytical expression of the physical quantities. All the outcomes of the physical quantities have been illustrated graphically to analyze the effect of non-homogeneity, angle of inclination of the inclined load and the gravitational force for different GN models (simple and refined GN-II and GN-III models).