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O. Okuda
[Proceedings of the Conference on Computational Engineering and Science, Vol. 4, No. 2, pp. 983-984, 1999]
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This paper describes the fictitious boundary method based on principle of superposition of Green function for three-dimensional elastic problem. When the original domain is decomposed to several sub-domains, characteristic matrices of the global system by this formulation consist of non-symmetric sparse matrices. We solve them by generalized minimum residual method with incomplete LDU decomposition as a preconditioner.
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