Propagation of Stoneley Waves at an Interface Between Two Microstretch Elastic Half-spaces

Abstract

Frequency equations for Stoneley waves at unbonded and bonded interfaces between two dissimilar microstretch elastic half-spaces have been derived. Eringen’s theory of microstretch elastic solid material is employed for mathematical analysis. It is found that Stoneley waves in a microstretch elastic solid medium are dispersive. Numerical computations are performed for a particular model to study the variation of phase velocity with respect to wavenumber, and reveal that for small values of non-dimensional wave number, the effect of microstretch property of the medium has a significant effect on dispersion curves, while no effect is observed for higher values of the non-dimensional wavenumber. The results of Tajuddin, Murty and Stoneley have been derived as particular cases of the present problem, and some other interesting particular cases have also been discussed.