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A model for the prediction of transverse crack and delamination density based on a strength and fracture mechanics probabilistic approach

hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorLAEUFFER, Hortense
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorGUIOT, Brice
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorWAHL, Jean-Christophe
IDREF: 074322850
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorPERRY, Nicolas
IDREF: 085512125
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorLAVELLE, Florian
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorBOIS, Christophe
IDREF: 080570429
dc.date.accessioned2021-05-14T09:51:35Z
dc.date.available2021-05-14T09:51:35Z
dc.date.issued2016
dc.date.conference2016-06-26
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77369
dc.description.abstractEnThe aim of this study is to provide a relevant description of damage growth and the resultant network for leakage prediction in liner-less composite vessels. A damage meso-model built on strength and energy criteria as proposed in FFM (Finite Fracture Mechanics) is introduced. Both criteria have to be fulfilled for the creation of the first transverse crack of the RVE (Representative Volume Element). The increase of crack density and the propagation of micro-delamination at crack tips are managed by Fracture Mechanics using the energy release rate. In this way the effect of ply thickness is explicitly accounted. The energy release rate at the meso-scale (RVE scale) is calculated from a multiscale approach. Numerical results show that, in [0 2 /90 1 /0 2 ] and [0 2 /90 3 /0 2 ] lay-ups under tensile stress, no delamination should occur for values of the energy release rates from the literature. This conclusion is reinforced by cross-section examinations through the width of specimens submitted to tensile loading. Delamination almost disappears after removing a few microns of the surface. Experimental results also highlight a preliminary step in the damage scenario with small cracking rate, likely driven by weak areas (defects locations). The modelling of this step being fundamental for the prediction of first leak paths, it was introduced througha probabilistic approach.
dc.language.isoen
dc.source.titleEuropean Conference on Composite Materials
dc.subject.enTransverse crack
dc.subject.enDelamination
dc.subject.enFracture mechanics
dc.subject.enIn-situ microscopy
dc.title.enA model for the prediction of transverse crack and delamination density based on a strength and fracture mechanics probabilistic approach
dc.typeCommunication dans un congrès avec actes
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]
bordeaux.page1-8
bordeaux.volume17
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.countryDE
bordeaux.title.proceedingECCM17 - 17 th European Conference on Composite Materials
bordeaux.conference.cityMunich
bordeaux.peerReviewedoui
hal.identifierhal-01500975
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01500975v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=European%20Conference%20on%20Composite%20Materials&rft.date=2016&rft.volume=17&rft.spage=1-8&rft.epage=1-8&rft.au=LAEUFFER,%20Hortense&GUIOT,%20Brice&WAHL,%20Jean-Christophe&PERRY,%20Nicolas&LAVELLE,%20Florian&rft.genre=proceeding


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