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Non-iterative regularized MFS solution of inverse boundary value problems in linear elasticity: A numerical study

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  • Marin, Liviu
  • Cipu, Corina

Abstract

The numerical reconstruction of the missing Dirichlet and Neumann data on an inaccessible part of the boundary in the case of two- and three-dimensional linear isotropic elastic materials from the knowledge of over-prescribed noisy measurements taken on the remaining accessible boundary part is investigated. This inverse problem is solved using the method of fundamental solutions (MFS), whilst its stabilization is achieved through several singular value decomposition (SVD)-based regularization methods, such as the Tikhonov regularization method [48], the damped SVD and the truncated SVD [18]. The regularization parameter is selected according to the discrepancy principle [40], generalized cross-validation criterion [14] and Hansen’s L-curve method [20].

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  • Marin, Liviu & Cipu, Corina, 2017. "Non-iterative regularized MFS solution of inverse boundary value problems in linear elasticity: A numerical study," Applied Mathematics and Computation, Elsevier, vol. 293(C), pages 265-286.
    • Handle: RePEc:eee:apmaco:v:293:y:2017:i:c:p:265-286
    DOI: 10.1016/j.amc.2016.08.021
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