Author： Pelekanos G. Kleinman R.E. van den Berg P.M.
Publisher： Academic Press
ISSN： 0021-9991
Source： Journal of Computational Physics, Vol.160, Iss.2, 2000-05, pp. : 597-611
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Abstract
The problem of two-dimensional scattering of elastic waves by an elastic inclusion can be formulated in terms of a domain integral equation, in which the grad-div operator acts on a vector potential. The vector potential is the spatial convolution of a Green's function with the product of the density and the displacement over the domain of interest. A weak form of the integral equation for the unknown displacement is obtained by testing it with rooftop functions. This method shows excellent numerical performance.
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