SH Wave Propagation in a Finite Thicker Layer of the Void Pore Sandwiched by Heterogeneous Orthotropic Media
Publication: International Journal of Geomechanics
Volume 17, Issue 5
Abstract
The present paper investigates the propagation of SH waves in a finite thicker layer of the void pore sandwiched by heterogeneous orthotropic media. In the upper semi-infinite medium initial stress, density and shear moduli are assumed to vary hyperbolically, whereas in the lower semi-infinite medium linear variation in initial stress, density and shear moduli are considered. The study reveals that, under assumed conditions, there may be two types of SH waves. The first front depends on the void parameter and velocity of shear wave of the medium, whereas the second kind of SH wave is affected only by the void parameter. The study also shows that SH waves propagate in an elastic homogeneous layer between two heterogeneous semi-infinite media. To study the effect of void parameter as well as heterogeneity and initial stress parameters, the velocities of SH waves are calculated numerically and presented in a number of graphs.
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Acknowledgments
The authors gratefully acknowledge financial help from the Council of Scientific and Industrial Research, New Delhi, through Grant 25(227)/13/EMR-II(2). The authors also deeply acknowledge the contribution of Bappa Mukherjee, research scholar, Department of Applied Geophysics, Indian School of Mines, Dhanbad, India, for improvement of this paper.
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Published In
International Journal of Geomechanics
Volume 17 • Issue 5 • May 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jun 16, 2015
Accepted: Aug 22, 2016
Published online: Oct 5, 2016
Discussion open until: Mar 5, 2017
Published in print: May 1, 2017
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