Effect of two-temperature on the energy ratios at the elastic–piezothermoelastic interface with phase lags

The phenomenon of reflection and transmission of plane waves between two half-spaces elastic and orthotropic piezothermoelastic with three-phase-lag and two-temperature is investigated. Amplitude ratios of the waves are obtained and used to compute energy ratios. The trend of energy ratios of different reflected and transmitted waves with angle of incidence is displayed graphically depicting the effect of two-temperature parameters with the consideration of three-phase-lag theory. The conservation of energy is justified. A particular case is also deduced from the study.