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Informationen zum Autor John P. Wolf is the author of Finite-Element Modelling of Unbounded Media, published by Wiley. Chongmin Song is the author of Finite-Element Modelling of Unbounded Media, published by Wiley. Klappentext 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. Zusammenfassung 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. Inhaltsverzeichnis Partial table of contents: SIMILARITY-BASED FORMULATION FOR UNIT-IMPULSE RESPONSE AND DYNAMICSTIFFNESS. Displacement, Velocity and Acceleration Unit-Impulse Response withDynamic Stiffness and Rational Approximation. Forecasting Method. Consistent Infinitesimal Finite-Element Cell Method Applied toBounded Medium. DAMPING-SOLVENT EXTRACTION FOR DYNAMIC STIFFNESS AND INTERACTIONFORCE. Fundamentals of Damping-Solvent Extraction Method. DOUBLY-ASYMPTOTIC MULTI-DIRECTIONAL TRANSMITTING BOUNDARY. Concept and Numerical Implementation of Doubly-AsymptoticMulti-Directional Transmitting Boundary. Accuracy and Modelling Procedure of Doubly-AsymptoticMulti-Directional Transmitting Boundary. Appendices. References. Index....
