Reflection of plane waves in thermodiffusive elastic half‐space with voids

Abstract

Purpose

The present investigation aims to examine the reflection of plane waves from a free surface of a thermodiffusive elastic half space with void.

Design/methodology/approach

Generalized theory of thermoelasticity developed by Lord‐Shulma was used to investigate the problem. The amplitude ratios of various reflected waves are obtained in a closed form. The dependence of these amplitude ratios with an angle of propagation as well as other material parameter are shown graphically.

Findings

Effects of void and diffusion are observed on these amplitude ratios and have been found to be significant.

Originality/value

It is found that there exist four longitudinal waves (namely P‐wave, thermal wave (T‐wave), mass diffusion wave (MD‐wave), volume fraction wave (VF‐wave, carrying a change in void volume fraction) and a transverse SV wave). Some special cases of interest are also deduced from the present investigation.

Citation

Sharma, K. (2012), "Reflection of plane waves in thermodiffusive elastic half‐space with voids", Multidiscipline Modeling in Materials and Structures, Vol. 8 No. 3, pp. 269-296. https://doi.org/10.1108/15736101211269113