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dc.contributor.authorACHOUR-RENAULT, Nadia
dc.contributor.authorCHATZIGEORGIOU, George
dc.contributor.authorCHEMISKY, Yves
dc.contributor.author
 hal.structure.identifier
FITOUSSI, Joseph
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.contributor.author
 hal.structure.identifier
MERAGHNI, Fodil
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
dc.date.accessioned2015
dc.date.available2017
dc.date.issued2015
dc.date.submitted2015
dc.identifier.issn0020-7403
dc.identifier.urihttp://hdl.handle.net/10985/10214
dc.description.abstractIn this work, the phenomenological viscoplastic DSGZ model[Duan, Y., Saigal, A., Greif, R., Zimmerman, M. A., 2001. A Uniform Phenomenological Constitutive Model for Glassy and Semicrystalline Polymers. Polymer Engineering and Science 41 (8), 1322-1328], developed for glassy or semi-crystalline polymers, is numerically implemented in a three dimensional framework, following an implicit formulation. The computational methodology is based on the radial return mapping algorithm. This implicit formulation leads to the definition of the consistent tangent modulus which permits the implementation in incremental micromechanical scale transition analysis. The extended model is validated by simulating the polypropylene thermoplastic behavior at various strain rates (from 0:92s-1 to 258s-1) and temperatures (from 20°C to 60°C). The model parameters for the studied material are identified using a heuristic optimization strategy based on genetic algorithm. The capabilities of the new implementation framework are illustrated by performing finite element simulations for multiaxial loading.
dc.description.sponsorshipcontrat de recherche Renault
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectPolymers
dc.subjectViscoplasticity
dc.subjectImplicit Formulation
dc.subjectConsistent Tangent Modulus
dc.titleImplicit implementation and consistent tangent modulus of a viscoplastic model for polymers
ensam.embargo.terms2 Years
dc.identifier.doi10.1016/j.ijmecsci.2015.09.010
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Metz
dc.subject.halInformatique: Modélisation et simulation
dc.subject.halSciences de l'ingénieur: Mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Matériaux et structures en mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des solides
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des structures
ensam.audienceInternationale
ensam.page29p.
ensam.journalInternational Journal of Mechanical Sciences
ensam.volumein press
hal.identifierhal-01206545
hal.version1
hal.submission.permittedupdateMetadata
hal.statusaccept


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