Abstract

The present paper investigates the reflection coefficient of thermoelastic plane waves at the free surface of an elastic half-space influenced by initial stress and temperature-dependent properties in the presence of thermal loading bounded by the three-phase-lag (3PHL) thermoelastic model. It revealed three plane waves, i.e. (thermal wave (T-wave), P-wave, and SV-wave). It provided the numerical solution and presented the effect of initial stress and temperature-dependent properties of the reflection coefficient graphically. Moreover, the paper utilized the altered reflected elastic waves because of initial stress and temperature-dependence to identify the more accurate nature of waves reflection, especially seismic waves.

摘要

本文研究了热弹性平面波在弹性半空间自由表面上的反射系数，该反射系数受初始应力和温度相关特性的影响，在热载荷存在下，以三相滞后 (3PHL) 热弹性模型为界。它揭示了三个平面波，即（热波（T-波）、P-波和SV-波）。它提供了数值解，并以图形方式显示了反射系数的初始应力和温度相关特性的影响。此外，该论文利用由于初始应力和温度依赖性而改变的反射弹性波来识别波反射的更准确的性质，尤其是地震波。