Influence of Initial Stress and Inhomogeneity on Propagation of Torsional Type Surface Wave in a Crustal Layer
Publication: International Journal of Geomechanics
Volume 16, Issue 4
Abstract
This article explores the propagation of torsional type surface waves in an initially stressed inhomogeneous layer of finite thickness lying over an inhomogeneous half-space. Inhomogeneity in this layer is caused by hyperbolic variation in directional rigidities, density, and initial stress. Inhomogeneity in the half-space is caused by linear variation in rigidity and density. The inhomogeneity parameter and the initial stress play major roles in the propagation of torsional type surface waves. This research derives the dispersion relation of the phase velocity in a concrete form using separation of variables and numerically calculates the velocities of torsional type waves as a function of dimensionless wave number.
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Acknowledgments
The fellowship received from University Grants Commission, New Delhi, through Grant No. F.7-79/2007(BSR) is gratefully acknowledged by the authors.
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Published In
International Journal of Geomechanics
Volume 16 • Issue 4 • August 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Sep 9, 2014
Accepted: Jun 18, 2015
Published online: Dec 30, 2015
Discussion open until: May 30, 2016
Published in print: Aug 1, 2016
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