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Numerical issues in the virtual fields method

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.
0029-5981
1287-1312
Grédiac, Michel
241c3271-d784-424a-8092-dc0c7f7b990f
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
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), 1287-1312. (doi:10.1002/nme.914).

Record type: Article

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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More information

Published date: 14 March 2004
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 210669
URI: https://eprints.soton.ac.uk/id/eprint/210669
ISSN: 0029-5981
PURE UUID: 18b235ce-8116-4a9d-bbab-56f08a7389d0
ORCID for Fabrice Pierron: ORCID iD orcid.org/0000-0003-2813-4994

Catalogue record

Date deposited: 21 Feb 2012 11:38
Last modified: 17 Sep 2019 00:46

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Contributors

Author: Michel Grédiac
Author: Fabrice Pierron ORCID iD

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