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dc.contributor.authorYAHYAOUI, Houda
dc.contributor.authorBEN MOUSSA, N
dc.contributor.author
 hal.structure.identifier
BRAHAM, Chedly
86289 Procédés et Ingénierie en Mécanique et Matériaux [Paris] [PIMM]
dc.contributor.authorSIDHOM, H
dc.contributor.authorBEN FREDJ, N
dc.date.accessioned2015
dc.date.available2015
dc.date.issued2015
dc.date.submitted2015
dc.identifier.urihttp://hdl.handle.net/10985/9901
dc.description.abstractMachining defects as rebuilt material and dislodgement were often induced by cutting of difficult to machining AISI 304 stainless steel. Their density increases with a decreasing of cutting speed. The effect of these defects on surface topography and residual stress was evaluated by roughness and X-ray diffraction measurements coupled with numerical simulation. The role of the rebuilt material on the distribution of fatigue crack nucleation sites was investigated by scanning electron microscope examination of post fatigue samples loaded at different imposed strain amplitudes. The association of machining defects and fatigue crack nucleation sites was attributed to the contribution of additional tensile residual stresses induced by rebuilt material rather than local stress concentration. Moreover, the fatigue crack coalescence is promoted by increasing the rebuilt material density. When the machining defect density increases from 5 to 60 particles/mm2, the fatigue life decreases from -22% to -65% with respect to the electropolished surface. © 2014 Wiley Publishing Ltd.
dc.language.isoen
dc.publisherWiley
dc.rightsPost-print
dc.subjectstainless steel
dc.subjectmachining defects
dc.subjectresidual stress
dc.subjectfatigue life
dc.subjectcrack distribution.
dc.titleRole of machining defects and residual stress on the AISI 304 fatigue crack nucleation
dc.identifier.doi10.1111/ffe.12243
dc.typdocArticles dans des revues avec comité de lecture
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
ensam.audienceInternationale
ensam.page420-433
ensam.journalFatigue and Fracture of Engineering Materials and Structures
ensam.volume38
hal.description.error{"meta":{"peerReviewing":{"isEmpty":"Vous devez remplir ce champ"}}}
hal.identifierhal-01192691
hal.version1
hal.submission.permittedupdateMetadata


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