Scattering Of Waves By Buried Cavities Via
Boundary Element Method
Author(s)
A.J.B. Tadeu & F.A.S. Paulo
Abstract
The Boundary Element Method (BEM) is used to determine the scattering of
elastic waves by cavities buried in a two-dimensional elastic medium when
struck by dynamic line sources. The BEM is formulated in the frequency domain
by means of Green's functions. The boundary of the cavity is discretized using
constant, linear and quadratic elements.
The element in the full system of equations generated by BEM results from
integrations of the Green's functions and its derivatives along the discretized
boundaries. The diagonal terms are the dominant ones in this system of
equations, and therefore its solution is highly dependent on those terms. The
integrations needed to produce the diagonal terms involve singularities. Thus, the
integration of those singularities play
Keywords
Related Book
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