Identification of the parameters of an elastic material model using the constitutive equation gap method

Handle URI:
http://hdl.handle.net/10754/561500
Title:
Identification of the parameters of an elastic material model using the constitutive equation gap method
Authors:
Florentin, Éric; Lubineau, Gilles ( 0000-0002-7370-6093 )
Abstract:
Today, the identification ofmaterialmodel parameters is based more and more on full-field measurements. This article explains how an appropriate use of the constitutive equation gap method (CEGM) can help in this context. The CEGM is a well-known concept which, until now, has been used mainly for the verification of finite element simulations. This has led to many developments, especially concerning the techniques for constructing statically admissible stress fields. The originality of the present study resides in the application of these recent developments to the identification problem. The proposed CEGM is described in detail, then evaluated through the identification of heterogeneous isotropic elastic properties. The results obtained are systematically compared with those of the equilibrium gap method, which is a well-known technique for the resolution of such identification problems. We prove that the use of the enhanced CEGM significantly improves the quality of the results. © Springer-Verlag 2010.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Publisher:
Springer Verlag
Journal:
Computational Mechanics
Issue Date:
23-Apr-2010
DOI:
10.1007/s00466-010-0496-y
Type:
Article
ISSN:
01787675
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorFlorentin, Éricen
dc.contributor.authorLubineau, Gillesen
dc.date.accessioned2015-08-02T09:12:53Zen
dc.date.available2015-08-02T09:12:53Zen
dc.date.issued2010-04-23en
dc.identifier.issn01787675en
dc.identifier.doi10.1007/s00466-010-0496-yen
dc.identifier.urihttp://hdl.handle.net/10754/561500en
dc.description.abstractToday, the identification ofmaterialmodel parameters is based more and more on full-field measurements. This article explains how an appropriate use of the constitutive equation gap method (CEGM) can help in this context. The CEGM is a well-known concept which, until now, has been used mainly for the verification of finite element simulations. This has led to many developments, especially concerning the techniques for constructing statically admissible stress fields. The originality of the present study resides in the application of these recent developments to the identification problem. The proposed CEGM is described in detail, then evaluated through the identification of heterogeneous isotropic elastic properties. The results obtained are systematically compared with those of the equilibrium gap method, which is a well-known technique for the resolution of such identification problems. We prove that the use of the enhanced CEGM significantly improves the quality of the results. © Springer-Verlag 2010.en
dc.publisherSpringer Verlagen
dc.subjectFinite elementsen
dc.subjectIdentificationen
dc.subjectInverse problemen
dc.subjectKinematic field measurementsen
dc.titleIdentification of the parameters of an elastic material model using the constitutive equation gap methoden
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentComposite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)en
dc.identifier.journalComputational Mechanicsen
dc.contributor.institutionLMT-Cachan, ENS Cachan/CNRS/UPMC/PRES, UniverSud Paris, 61, Avenue du Président Wilson, 94235 Cachan, Franceen
kaust.authorLubineau, Gillesen
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