Using constitutive equation gap method for identification of elastic material parameters: Technical insights and illustrations

Handle URI:
http://hdl.handle.net/10754/561837
Title:
Using constitutive equation gap method for identification of elastic material parameters: Technical insights and illustrations
Authors:
Florentin, Éric; Lubineau, Gilles ( 0000-0002-7370-6093 )
Abstract:
The constitutive equation gap method (CEGM) is a well-known concept which, until now, has been used mainly for the verification of finite element simulations. Recently, CEGM-based functional has been proposed to identify local elastic parameters based on experimental full-field measurement. From a technical point of view, this approach requires to quickly describe a space of statically admissible stress fields. We present here the technical insights, inspired from previous works in verification, that leads to the construction of such a space. Then, the identification strategy is implemented and the obtained results are compared with the actual material parameters for numerically generated benchmarks. The quality of the identification technique is demonstrated that makes it a valuable tool for interactive design as a way to validate local material properties. © 2011 Springer-Verlag.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Publisher:
Springer Nature
Journal:
International Journal on Interactive Design and Manufacturing (IJIDeM)
Issue Date:
9-Aug-2011
DOI:
10.1007/s12008-011-0129-5
Type:
Article
ISSN:
19552513
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.accessioned2015-08-03T09:32:06Zen
dc.date.available2015-08-03T09:32:06Zen
dc.date.issued2011-08-09en
dc.identifier.issn19552513en
dc.identifier.doi10.1007/s12008-011-0129-5en
dc.identifier.urihttp://hdl.handle.net/10754/561837en
dc.description.abstractThe constitutive equation gap method (CEGM) is a well-known concept which, until now, has been used mainly for the verification of finite element simulations. Recently, CEGM-based functional has been proposed to identify local elastic parameters based on experimental full-field measurement. From a technical point of view, this approach requires to quickly describe a space of statically admissible stress fields. We present here the technical insights, inspired from previous works in verification, that leads to the construction of such a space. Then, the identification strategy is implemented and the obtained results are compared with the actual material parameters for numerically generated benchmarks. The quality of the identification technique is demonstrated that makes it a valuable tool for interactive design as a way to validate local material properties. © 2011 Springer-Verlag.en
dc.publisherSpringer Natureen
dc.subjectAdmissible field constructionen
dc.subjectFinite elementsen
dc.subjectIdentificationen
dc.titleUsing constitutive equation gap method for identification of elastic material parameters: Technical insights and illustrationsen
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.journalInternational Journal on Interactive Design and Manufacturing (IJIDeM)en
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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