A Well Stated Time Domain Integral Representation for Elastodynamic Analysis and Applications
AUTOR(ES)
Coda, H. B.
FONTE
Journal of the Brazilian Society of Mechanical Sciences
DATA DE PUBLICAÇÃO
2002-03
RESUMO
This article discusses three possible ways to derive time domain boundary integral representations for elastodynamics. This discussion points out possible difficulties found when using those formulations to deal with practical applications. The discussion points out recommendations to select the convenient integral representation to deal with elastodynamic problems and opens the possibility of deriving simplified schemes. The proper way to take into account initial conditions applied to the body is an interesting topict shown. It illustrates the main differences between the discussed boundary integral representation expressions, their singularities and possible numerical problems. The correct way to use collocation points outside the analyzed domain is carefully described. Some applications are shown at the end of the paper, in order to demonstrate the capabilities of the technique when properly used.
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