A DISCONTINUOUS GALERKIN METHOD FOR MODELING TRANSIENT WAVE PROPAGATION IN UNBOUNDED LAYERED MEDIA
Abstract eng: An absorbing boundary condition based on the discontinuous Galerkin method is applied to transient analysis of elastic wave propagation in unbounded layered media. The boundary condition is exact in the finite-element sense, and the associated computational cost is an order of magnitude lower than for conditions based on Green functions. Furthermore, an implicit time-stepping scheme in conjunction with this boundary condition appears to lead to an unconditionally stable transient analysis procedure. Problems of foundation dynamics involving horizontally layered media are considered to demonstrate the performance of the condition.
Contributors:
Publisher:
Columbia University in the City of New York
Conference Title:
Conference Title:
15th ASCE Engineering Mechanics Division Conference
Conference Venue:
New York (US)
Conference Dates:
2002-06-02 / 2002-06-05
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-11-19, last modified 2014-11-19
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