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Effect of unstable crack growth on mode II interlaminar fracture toughness of a thermoplastic PEEK composite

hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorGARCIA PEREZ, Pablo
hal.structure.identifierInstitut Clément Ader [ICA]
dc.contributor.authorBOUVET, Christophe
hal.structure.identifierDépartement de Recherche en Ingéniérie des Véhicules pour l'Environnement [DRIVE]
dc.contributor.authorCHETTAH, Ameur
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorDAU, Frederic
hal.structure.identifierArianeGroup
dc.contributor.authorBALLÈRE, Ludovic
hal.structure.identifierArianeGroup
dc.contributor.authorPERES, Patrick
dc.date.accessioned2021-05-14T09:44:42Z
dc.date.available2021-05-14T09:44:42Z
dc.date.issued2019-01-01
dc.identifier.issn0013-7944
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/76890
dc.description.abstractEnAn end notched flexure (ENF) test was used to study the effect of growth stability on mode II interlaminar fracture toughness (GIIC) of a carbon/PEEK composite. The instability of the ENF test was used to induce both stable and unstable crack growth with a static loading. Two techniques were used to evaluate mode II fracture toughness: the traditional compliance method and the infra-red thermography technique. The compliance technique has the advantage of being simple and it has already been confirmed for standard tests. Nevertheless its results may be inaccurate for unstable crack growth propagation. The infra-red thermography technique enables fracture toughness to be accurately measured for non-standard tests in which the crack growth may be unstable. Both methods are complementary and this study came to the conclusion that GIIC is sensitive to crack growth velocity. Fracture toughness showed a low value for crack growth start and unstable propagation, and a high value for stable crack growth. The transition between a ductile fracture mode (for low crack growth velocity) and a brittle fracture mode (for high crack growth velocity) explained the important variability in GIIC values.
dc.language.isoen
dc.publisherElsevier
dc.subject.enUnstable crack growth
dc.subject.enDelamination
dc.subject.enPolymer matrix composites
dc.title.enEffect of unstable crack growth on mode II interlaminar fracture toughness of a thermoplastic PEEK composite
dc.typeArticle de revue
dc.identifier.doi10.1016/j.engfracmech.2018.11.022
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph]
bordeaux.journalEngineering Fracture Mechanics
bordeaux.page486-497
bordeaux.volume205
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.peerReviewedoui
hal.identifierhal-02009423
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02009423v1
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