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Journal of Vibration and Control
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Propagation of Stoneley Waves at an Interface Between Two Microstretch Elastic Half-spaces

S. K. Tomar

Department of Mathematics, Panjab University, Chandigarh-160014, India, sktomar{at}yahoo.com

Dilbag Singh

Department of Mathematics, Panjab University, Chandigarh-160014, India

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.

Key Words: Stoneley wave • microstretch • micropolar • frequency equation • unbonded interface • bonded interface

Journal of Vibration and Control, Vol. 12, No. 9, 995-1009 (2006)
DOI: 10.1177/1077546306068689
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