Numerical issues in the virtual fields method
Numerical issues in the virtual fields method
This paper deals with the direct identification of parameters governing anisotropic elastic constitutive equations. These parameters are identified from heterogeneous strain fields with the virtual fields method. This method is based on a relevant use of the principle of virtual work. Different numerical aspects of the implementation of the method are discussed in the paper, mainly in terms of stability of the identified parameters when noisy data are processed. It is shown that the sensitivity of the method to noisy data is compatible with a practical use during experiments.
1287-1312
Grédiac, Michel
241c3271-d784-424a-8092-dc0c7f7b990f
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
14 March 2004
Grédiac, Michel
241c3271-d784-424a-8092-dc0c7f7b990f
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Grédiac, Michel and Pierron, Fabrice
(2004)
Numerical issues in the virtual fields method.
International Journal for Numerical Methods in Engineering, 59 (10), .
(doi:10.1002/nme.914).
Abstract
This paper deals with the direct identification of parameters governing anisotropic elastic constitutive equations. These parameters are identified from heterogeneous strain fields with the virtual fields method. This method is based on a relevant use of the principle of virtual work. Different numerical aspects of the implementation of the method are discussed in the paper, mainly in terms of stability of the identified parameters when noisy data are processed. It is shown that the sensitivity of the method to noisy data is compatible with a practical use during experiments.
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Published date: 14 March 2004
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 210669
URI: http://eprints.soton.ac.uk/id/eprint/210669
ISSN: 0029-5981
PURE UUID: 18b235ce-8116-4a9d-bbab-56f08a7389d0
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Date deposited: 21 Feb 2012 11:38
Last modified: 15 Mar 2024 03:35
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Author:
Michel Grédiac
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