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dc.contributor.author
 hal.structure.identifier
ALTMEYER, Guillaume
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
dc.contributor.author
 hal.structure.identifier
ABED-MERAIM, Farid
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
dc.contributor.author
 hal.structure.identifier
BALAN, Tudor
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
dc.date.accessioned2013
dc.date.available2013
dc.date.issued2013
dc.date.submitted2013
dc.identifier.urihttp://hdl.handle.net/10985/7484
dc.description.abstractMany criteria have been developed during last decades to predict diffuse or localized necking and shear banding. The lack of confrontation of these models with each other on relevant applications makes their choice difficult for the designer. It is proposed to reformulate these plastic instability criteria in an unified framework, to compare their theoretical bases to establish links between them and then to highlighten their limitations. In the case of diffuse necking, a comparison is made between the criteria based on bifurcation analysis and on those based on maximum force principle for elastic-plastic materials. In the case of localized modes, it is shown that the predictions of the Marciniak – Kuczynski approach, based on a multizone model, tend to those of the loss of ellipticity criterion when the initial defect size tends to zero (no initial defect introduced). In the case of elasto-viscoplastic behavior, an approach based on a linear stability analysis is mentioned.
dc.rightsPost-print
dc.subjectnecking
dc.subjectstrain localization
dc.subjectplasic instability
dc.subjectbifurcation
dc.subjectmaximum force criterion
dc.subjectMarciniak-Kuczynski method
dc.titleOverview of the theoretical relations between necking and strain localization criteria.
dc.typdocCommunications avec actes
dc.localisationCentre de Metz
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des matériaux
ensam.audienceInternationale
ensam.conference.titleCongrès français de mécanique (21 ; 2013 ; Bordeaux (Gironde)).
ensam.conference.date2013-08-26
ensam.countryFrance
ensam.title.proceedingCongrès français de mécanique (21 ; 2013 ; Bordeaux (Gironde)).
ensam.page1-6
hal.identifierhal-00903644
hal.version1


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