**Reflection and Refraction of Plane Harmonic Waves at an Interface Between Elastic Solid and Magneto-thermoelastic Diffusion Solid with Voids**

Kumar Rajneesh 1, Kansal Tarun 2

1 Department of Mathematics, Kurukshetra University Kurukshetra-136119, India

E-mail: rajneesh_kuk@rediffmail.com2 Department of Mathematics, M.N.College, Shahabad (M.)-136135, India

E-mail: tarun1_kansal@yahoo.co.in – corresponding author

### Received:

Received: 21 July 2016; revised: 23 January 2017; accepted: 24 January 2017; published online: 16 March 2017

### DOI: 10.12921/cmst.2016.0000036

### Abstract:

The problem of the reflection and refraction phenomenon due to longitudinal and transverse waves incident obliquely at a plane interface between uniform elastic solid half-space and magneto-thermoelastic diffusive solid half-space with voids has been studied. It is found that the amplitude ratios of various reflected and refracted waves are functions of the angle of incidence and frequency of the incident wave. The amplitude ratios and energy ratios have been computed numerically for a particular model. The variations of energy ratios with angle of incidence are shown graphically.

### Key words:

amplitude ratios, elastic waves, energy ratios, magneto-thermoelastic diffusive solid, reflection, refraction

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