Stresses Induced by a Moving Load in a Composite Structure with an Incompressible Poroviscoelastic Layer
Publication: Journal of Engineering Mechanics
Volume 145, Issue 9
Abstract
An investigation concerned with the dynamic response of a composite structure to a moving load on its uppermost rough surface has been carried out analytically. The composite structure is comprised of an incompressible fluid-saturated transversely isotropic poroviscoelastic layer of finite width imperfectly bonded with an underlying transversely isotropic viscoelastic semi-infinite medium. Closed-form expressions of induced stresses (shear and normal) and induced pore pressure are established analytically using the appropriate boundary conditions. The established results are validated with the preestablished results. The substantial effects of influencing parameters—porosity; frictional coefficient; shear and transverse imperfection (bonding) parameters; shear viscosity, volume viscosity, and extensional viscosity parameters; and the vertical depth (from the free surface) of the medium—on the induced stresses (shear and normal) of the layer and semi-infinite medium and the induced pore pressure of the layer of the considered composite structure are demonstrated graphically through numerical computation. Moreover, a comparative examination of distinct cases of the problem serves as the salient feature of the study and contributes better analysis than found in the literature.
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Acknowledgments
The authors convey their sincere thanks to the Indian Institute of Technology (ISM), Dhanbad, India, for help at the best research facility and for providing a Senior Research Fellowship to Mr. Pulkit Kumar and thanks also go to DST Inspire India for providing a Senior Research Fellowship to Ms. Moumita Mahanty. Authors also express their sincere thanks to the Science and Engineering Research Board, Department of Science and Technology, New Delhi, for providing financial support through Project EMR/2017/000263.
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Published In
Journal of Engineering Mechanics
Volume 145 • Issue 9 • September 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Jul 2, 2018
Accepted: Dec 27, 2018
Published online: Jun 22, 2019
Published in print: Sep 1, 2019
Discussion open until: Nov 22, 2019
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