Abstract
The paper presents a boundary element methodology using halfspace Green's functions for the solution of elastodynamic problems in the time domain. The physical interpretation of the several terms of the Green's functions as well as their properties are discussed. Some of the numerical aspects associated with the halfspace Green's function in a boundary element formulation for the solution of transient dynamic soil-structure interaction problems, are also given. The application of the method is demonstrated for the case of a foundation lying on the surface of the half-space and subjected to an impulsive vertical load, as well as, for the study of the so called Doppler-effect appearing within the railway tracks of the newly developed high speed trains.
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