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 | | Finite-Element Modelling of Unbounded Media by John P. Wolf, Chongmin Song ISBN-10: 9780471961345 ISBN-10: 0-471-96134-5 ISBN-13: 9780471961345 ISBN-13: 978-0-471-96134-5 Hardcover 1996-08-08 Wiley Find Lowest Price |
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Product Description Dynamic unbounded medium-structure interactions occur in many fields of engineering and physical science, such as wave propagation in soil-structure and fluid-structure interactions, acoustics and electromagnetism and as diffusion in heat conduction and consolidation. This book presents three novel concepts, based on the finite-element methodology, to model the unbounded medium: * The consistent infinitesimal finite-element cell method, a boundary finite-element procedure, requires the discretization of the structure-medium interface only and is exact in the finite-element sense. It is applied to unbounded media governed by the hyperbolic, parabolic and elliptic differential equations. * The damping-solvent extraction method permits the analysis of a bounded medium only. * The doubly-asymptotic multi-directional transmitting boundary is exact for the low- and high-frequency limits at preselected wave propagation directions. All concepts are explained using simple examples that the reader can follow step by step. A computer program of the consistent infinitesimal finite-element cell method available on disk analyses two- and three-dimensional unbounded and bounded media for the scalar and vector wave equations and the diffusion equation in the frequency and time domains. | ||