期刊
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
卷 91, 期 -, 页码 127-142出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2016.03.013
关键词
Inverse boundary value problem; Three-dimensional linear thermoelasticity; Method of fundamental solutions (MFS); Singular value decomposition (SVD); Regularization
类别
资金
- Romanian National Authority for Scientific Research (CNCS-UEFISCDI) [PN-II-ID-PCE-2011-3-0521]
We investigate the numerical reconstruction of the missing thermal and mechanical boundary conditions on an inaccessible part of the boundary in the case of three-dimensional linear isotropic thermoelastic materials from the knowledge of over-prescribed noisy data on the remaining accessible boundary. We employ the method of fundamental solutions (MFS) and several singular value decomposition (SVD)-based regularization methods, e.g. the Tikhonov regularization method (Tikhonov and Arsenin, 1986), the damped SVD and the truncated SVD (Hansen, 1998), whilst the regularization parameter is selected according to the discrepancy principle (Morozov, 1966),generalized cross-validation criterion (Golub et al., 1979) and Hansen's L-curve method (Hansen and O'Leary, 1993). (C) 2016 Elsevier Ltd. All rights reserved.
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