The constitutive compatibility method for identification of material parameters based on full-field measurements

Handle URI:
http://hdl.handle.net/10754/562992
Title:
The constitutive compatibility method for identification of material parameters based on full-field measurements
Authors:
Moussawi, Ali ( 0000-0002-5978-7990 ) ; Lubineau, Gilles ( 0000-0002-7370-6093 ) ; Florentin, Éric; Blaysat, Benoît
Abstract:
We revisit here the concept of the constitutive relation error for the identification of elastic material parameters based on image correlation. An additional concept, so called constitutive compatibility of stress, is introduced defining a subspace of the classical space of statically admissible stresses. The key idea is to define stresses as compatible with the observed deformation field through the chosen class of constitutive equation. This makes possible the uncoupling of the identification of stress from the identification of the material parameters. As a result, the global cost of the identification is strongly reduced. This uncoupling also leads to parametrized solutions in cases where the solution is non-unique as demonstrated on 2D numerical examples. © 2013 Elsevier B.V.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Publisher:
Elsevier BV
Journal:
Computer Methods in Applied Mechanics and Engineering
Issue Date:
Oct-2013
DOI:
10.1016/j.cma.2013.06.003
Type:
Article
ISSN:
00457825
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorMoussawi, Alien
dc.contributor.authorLubineau, Gillesen
dc.contributor.authorFlorentin, Éricen
dc.contributor.authorBlaysat, Benoîten
dc.date.accessioned2015-08-03T11:18:24Zen
dc.date.available2015-08-03T11:18:24Zen
dc.date.issued2013-10en
dc.identifier.issn00457825en
dc.identifier.doi10.1016/j.cma.2013.06.003en
dc.identifier.urihttp://hdl.handle.net/10754/562992en
dc.description.abstractWe revisit here the concept of the constitutive relation error for the identification of elastic material parameters based on image correlation. An additional concept, so called constitutive compatibility of stress, is introduced defining a subspace of the classical space of statically admissible stresses. The key idea is to define stresses as compatible with the observed deformation field through the chosen class of constitutive equation. This makes possible the uncoupling of the identification of stress from the identification of the material parameters. As a result, the global cost of the identification is strongly reduced. This uncoupling also leads to parametrized solutions in cases where the solution is non-unique as demonstrated on 2D numerical examples. © 2013 Elsevier B.V.en
dc.publisherElsevier BVen
dc.subjectConstitutive relation erroren
dc.subjectFull field measurementen
dc.subjectIdentificationen
dc.subjectInverse problemen
dc.subjectSpectral decompositionen
dc.titleThe constitutive compatibility method for identification of material parameters based on full-field measurementsen
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.journalComputer Methods in Applied Mechanics and Engineeringen
dc.contributor.institutionENSI de Bourges, Univ. Orléans, PRISME, EA 4229, F-18020, Bourges, Franceen
kaust.authorMoussawi, Alien
kaust.authorLubineau, Gillesen
kaust.authorBlaysat, Benoîten
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