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dc.contributor.author
 hal.structure.identifier
MOULART, Raphaël
211915 Mechanics surfaces and materials processing [MSMP]
dc.contributor.author
 hal.structure.identifier
ROTINAT, René
211915 Mechanics surfaces and materials processing [MSMP]
dc.date.accessioned2018
dc.date.available2018
dc.date.issued2013
dc.date.submitted2014
dc.identifier.urihttp://hdl.handle.net/10985/12940
dc.description.abstractThis study deals with the characterisation of the mechanical behaviour of an austenitic stainless steel (316L) at the micrometric scale in its elasto-plastic domain. For that, the full-field “grid method”, adapted to this scale, is implemented. The direct interferometric photolithography is used here to produce gratings (the pitch is approximately 5 μm) on specimen surface. The gratings are digitized at every step of the tensile loading thanks to a white-light interferometric microscope. The in-plan strain fields are then deduced from these grating images (resolution is closed to 2×10-3 for a spatial resolution of bout 20 μm). The results show that the strain localisation is in accordance with the microstructure. Some considerations about the average strain within different grains of the steel sample are made to show how the plastic deformation begins locally before the global yield point σY. It was then observed that these local σY values thus determined may vary by +/-20 MPa around the macroscopic value (180 MPa).
dc.description.sponsorshipSans financement
dc.language.isoen
dc.rightsPost-print
dc.subjectgrid method
dc.subjectmicrometric scale
dc.subjectelasto-plastic behavior
dc.subjectstainless steel
dc.titleElasto-plastic strain field measurement at micro-scale on 316L stainless steel
dc.typdocCommunications avec actes
dc.localisationCentre de Châlons-en-Champagne
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des matériaux
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des solides
ensam.audienceInternationale
ensam.conference.titleCongrès Français de Mécanique
ensam.conference.date2013-08-26
ensam.countryFrance
ensam.title.proceedingCongrès Français de Mécanique
ensam.page1-6
ensam.volume21
ensam.cityBordeaux (Gironde)
ensam.peerReviewingOui
ensam.invitedCommunicationOui
ensam.proceedingOui
hal.identifierhal-01763313
hal.version1


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