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 hal.structure.identifier
GERMAIN, Guénaël
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
dc.contributor.author
 hal.structure.identifier
AYED, Yessine
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
dc.contributor.author
 hal.structure.identifier
BRAHAM-BOUCHNAK, Tarek
234562 Sandvik Tooling France
dc.contributor.author
 hal.structure.identifier
MOREL, Anne
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
dc.date.accessioned2013
dc.date.available2013
dc.date.issued2013
dc.date.submitted2013
dc.identifier.urihttp://hdl.handle.net/10985/7417
dc.description.abstractDetermining a material constitutive law which is representative of the extreme conditions found in the cutting zone during machining operations is a very challenging problem. In this study, dynamic shear tests, which reproduce, as faithfully as possible, these conditions in terms of strain, strain rate and temperature, have been developed using hat-shaped specimens. The objective was to identify the parameters of a Johnson-Cook material behaviour model by an inverse method for three titanium alloys: Ti6Al4V, Ti555-3 and Ti17. In order to be as representative as possible of the experimental results, the parameters of the Johnson-Cook model were not considered to be constant over the total range of the strain rate and temperature investigated. This reflects a change in the mechanisms governing the deformation. The shear zones observed in hat-shaped specimens were analysed and compared to those produced in chips during conventional machining for both materials. It is concluded that, in the Ti555-3 alloy, the proportion of alpha-phase greatly reduces in high strain-rate zones.
dc.language.isofr
dc.publisherCongrès Français de Mécanique
dc.rightsPost-print
dc.subjectalliages de titane
dc.subjectJohnson-Cook
dc.subjectméthode inverse
dc.subjectzone de coupe
dc.titleIdentification de lois de comportement représentatives des conditions d’usinage pour des alliages de titane à différentes teneurs alpha/beta
dc.typdocCommunication avec acte
dc.localisationCentre de Angers
dc.subject.halSciences de l'ingénieur: Génie des procédés
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Génie mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Matériaux et structures en mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des matériaux
ensam.audienceNon spécifiée
ensam.conference.titleCongrès Français de Mécanique (21; 2013; Bordeaux)
ensam.conference.date2013-08-26
ensam.countryFrance
ensam.title.proceedingCongrès Français de Mécanique (21; 2013; Bordeaux)
ensam.page1-6
hal.identifierhal-00875815
hal.version1
hal.submission.permittedupdateMetadata
hal.statusaccept


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