Applying the virtual fields method to the identification of elasto-plastic constitutive parameters
Applying the virtual fields method to the identification of elasto-plastic constitutive parameters
This paper deals with the identification of constitutive parameters governing elasto-plastic constitutive equations. The procedure used is the virtual fields method. It consists in writing the principle of virtual work with particular virtual fields. A cost function is then deduced. Minimizing this cost function provides the unknown parameters. An important feature is the fact that no finite element analysis is required with this approach. Moreover, it is not sensitive to the distribution of the loading if suitable virtual fields are used. Some numerical examples illustrate the relevancy of the method and its sensitivity to noisy data.
inverse problem, virtual fields method, identification, heterogeneous tests
602-627
Grédiac, Michel
241c3271-d784-424a-8092-dc0c7f7b990f
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
April 2006
Grédiac, Michel
241c3271-d784-424a-8092-dc0c7f7b990f
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Grédiac, Michel and Pierron, Fabrice
(2006)
Applying the virtual fields method to the identification of elasto-plastic constitutive parameters.
International Journal of Plasticity, 22 (4), .
(doi:10.1016/j.ijplas.2005.04.007).
Abstract
This paper deals with the identification of constitutive parameters governing elasto-plastic constitutive equations. The procedure used is the virtual fields method. It consists in writing the principle of virtual work with particular virtual fields. A cost function is then deduced. Minimizing this cost function provides the unknown parameters. An important feature is the fact that no finite element analysis is required with this approach. Moreover, it is not sensitive to the distribution of the loading if suitable virtual fields are used. Some numerical examples illustrate the relevancy of the method and its sensitivity to noisy data.
This record has no associated files available for download.
More information
e-pub ahead of print date: 8 August 2005
Published date: April 2006
Keywords:
inverse problem, virtual fields method, identification, heterogeneous tests
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 210655
URI: http://eprints.soton.ac.uk/id/eprint/210655
ISSN: 0749-6419
PURE UUID: db21568c-d53a-4f92-a910-98f5aef7158f
Catalogue record
Date deposited: 09 Mar 2012 16:17
Last modified: 15 Mar 2024 03:35
Export record
Altmetrics
Contributors
Author:
Michel Grédiac
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
