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ADVANCES IN BOUNDARY ELEMENT METHODS
Edited by: B.H.V. Topping
An Efficient Technique for Boundary Elements with Subregions
J.A.F. Santiago, V.A. Valentim and J.C.F. Telles
COPPE/Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
J.A.F. Santiago, V.A. Valentim, J.C.F. Telles, "An Efficient Technique for Boundary Elements with Subregions", in B.H.V. Topping, (Editor), "Advances in Boundary Element Methods", Civil-Comp Press, Edinburgh, UK, pp 9-15, 1996. doi:10.4203/ccp.44.1.2
This work discusses the subregions technique and presents a boundary element formulation with vector generation of the system of equations.
The procedure only requires storage for non-zero matrix coefficients plus the possibly non-zero ones which appear when a maximum pivot selection is activated during a Gauss elimination routine. The technique produces great savings in computer run time and is implemented in a 3-D modular elasticity code with quadrilateral and triangular elements, continuous and discontinuous, constant, linear and quadratic.
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