Conjugate Gradient-boundary Element Method For A Cauchy Problem In The Lame System
Price
Free (open access)
Transaction
Volume
27
Pages
10
Published
2001
Size
711 kb
Paper DOI
10.2495/BT010221
Copyright
WIT Press
Author(s)
L. Marin, D.N. Hao & D. Lesnic
Abstract
In this paper an iterative algorithm, based on the conjugate gradient method (CGM), for obtaining approximate solutions to the Cauchy problem in lin- ear elasticity is analysed, using the boundary element method (BEM). The numerical results obtained confirm that the iterative BEM produces a con- vergent and stable numerical solution with respect to increasing the number of boundary elements and decreasing the amount of noise added into the input data. 1 Introduction Consider a linear elastic material which occupies an open bounded domain fi C R*, where d is the dimension of the space in which the problem is posed, usually d £ {1,2,3}, and assume that fi is bounded by a surface F = <9f2 £ C*. We also assume that the boundary consists of two parts, r =Keywords