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dc.contributor.author
 hal.structure.identifier
YAICH, Mariem
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
dc.contributor.author
 hal.structure.identifier
AYED, Yessine
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
dc.contributor.authorBOUAZIZ, Zoubeir
dc.contributor.author
 hal.structure.identifier
GERMAIN, Guénaël
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
dc.date.accessioned2016
dc.date.available2017
dc.date.issued2016
dc.date.submitted2016
dc.identifier.issn0268-3768
dc.identifier.urihttp://hdl.handle.net/10985/11145
dc.description.abstractIn this paper, a deep study of constitutive parameters definition effect is done in order to guarantee sufficient reliability of the finite element machining modeling. The case of a particular biphasic titanium alloy Ti6Al4V known by its low machinability is investigated. The Johnson-Cook (JC) elasto-thermo-visco-plastic-damage model combined with the energy-based ductile fracture criteria is used. Segmentation frequency, chip curvature radius, shear band spacing, chip serration sensitivity and intensity, accumulated plastic strain in the formed chip segments, and cutting forces levels are determined where their dependency to every constitutive coefficient is examined and highlighted. It is demonstrated from the separate variation of every plastic and damage parameters that an interesting finite element modeling (FEM) relevance is reached with the adjustment of JC strain hardening coefficients term, thermal softening parameter, exponent fracture factor, and damage evolution energy. Moderate and high cutting speeds are applied to the cutting tool in the aim to test their impact on shear localization, chip segmentation, and numerical forces levels as well as to approve previous highlighted findings related to constitutive parameters definition. In general, this study focuses on a prominent decrease in identification process cost with the previous knowledge of the most affecting constitutive coefficients while keeping an interesting agreement between numerical and experimental results.
dc.language.isoen
dc.publisherSpringer Verlag
dc.rightsPost-print
dc.subjectShear bands
dc.subjectStrain evolution
dc.subjectLagrangian formulation
dc.subjectChip serration sensitivity
dc.subjectFinite elements modeling
dc.subjectOrthogonal cutting process
dc.titleNumerical analysis of constitutive coefficients effects on FE simulation of the 2D orthogonal cutting process: application to the Ti6Al4V
ensam.embargo.terms2017-05
dc.identifier.doi10.1007/s00170-016-8934-4
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Angers
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des matériaux
ensam.audienceInternationale
ensam.page1-21
ensam.journalInternational Journal of Advanced Manufacturing Technology
ensam.peerReviewingOui
hal.identifierhal-01361858
hal.version1
hal.submission.permittedupdateMetadata
hal.statusaccept
dc.identifier.eissn1433-3015


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