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Analyse et modélisation du comportement en fatigue des alliages d'aluminium de fonderie

hal.structure.identifierPSA Peugeot - Citroën [PSA]
hal.structure.identifierLaboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorLE, Viet Duc
hal.structure.identifierLaboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
dc.contributor.authorMOREL, Franck
hal.structure.identifierLaboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
dc.contributor.authorBELLETT, Daniel
hal.structure.identifierLaboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
dc.contributor.authorPESSARD, Etienne
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorSAINTIER, Nicolas
hal.structure.identifierPSA Peugeot - Citroën [PSA]
dc.contributor.authorOSMOND, Pierre
dc.date.accessioned2021-05-14T09:36:24Z
dc.date.available2021-05-14T09:36:24Z
dc.date.issued2015
dc.date.conference2015-11-18
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/76274
dc.description.abstractEnThis paper describes a microstructural-based high cycle fatigue behaviour model applied to cast Al-Si alloys used in an automobile context. These materials are characterized by the presence of different microstructural heterogeneities at different scales: the aluminium matrix (DAS/SDAS and the precipitation hardening level), inclusions (Si particles and intermetallic) and casting defects (porosity). It is shown that the effects of these factors on the HCF damage mechanisms are important and can depend on the loading mode. A multiaxial fatigue test campaign has been carried out using three cast aluminium alloys, fabricated by different casting processes (gravity die casting and lost foam casting), associated with several heat treatment(T7 and Hot Isostatic Pressing-HIP). The HIP treatment is used to eliminate or minimise the porosity. The first part of the article is dedicated to the experimental characterization of the HCF damage mechanisms. With regard to the effect of the casting defects, a study of natural fatigue crack growth and artificial long crack growth is presented and subsequently used to choose an appropriate fatigue strength criterion to take into account the effect of defects, for different loading modes (tension, torsion and combined tension-torsion). Finally, a flexible modelling framework, providing the possibility of combining any two suitable criteria, which leads to the construction of a multiaxial Kitagawa-Takahashi diagram, is used.
dc.language.isoen
dc.publisherElsevier
dc.source.titleProcedia Engineering
dc.subject.enHigh cycle fatigue
dc.subject.enMultiaxial
dc.subject.enCast aluminium alloy
dc.subject.enDefect
dc.subject.enModelling
dc.subject.enProbabilistic
dc.titleAnalyse et modélisation du comportement en fatigue des alliages d'aluminium de fonderie
dc.title.enMicrostructural-based Analysis and Modelling of the Fatigue Behaviour of Cast Al-Si Alloys
dc.typeCommunication dans un congrès avec actes
dc.identifier.doi10.1016/j.proeng.2015.12.630
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph]
bordeaux.page562–575
bordeaux.volume133
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.countryFR
bordeaux.title.proceeding6th International Fatigue Design Conference
bordeaux.conference.citySenlis
bordeaux.peerReviewedoui
hal.identifierhal-02486657
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02486657v1
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