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Influence de la vitesse de sollicitation sur le comportement en compression d'un liège aggloméré renforcé

hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorLE BARBENCHON, Louise
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorGIRARDOT, Jeremie
IDREF: 180810375
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorKOPP, Jean-Benoit
IDREF: 17687335X
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorVIOT, Philippe
dc.date.accessioned2021-05-14T09:39:38Z
dc.date.available2021-05-14T09:39:38Z
dc.date.issued2018
dc.identifier.issn2100-014X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/76510
dc.description.abstractEnThe demand for bio-sourced materials is currently increasing. Cork material because of its unique properties (fire resistant, energy absorbing, ...) is then an excellent candidate for a large set of applications. In order to widen its possible uses, cork agglomerates with reinforcements at a 0.48 density were studied to compare their mechanical performances with classical cork agglomerates. This paper investigates the effect of these foreign reinforcements on the properties of agglomerated cork under a compressive loading. The material behavior has been determined as a function of the average strain rate and the direction of solicitation. The microstructure was first observed through optical and scanning electronic microscopy, spotting charges between each cork bead. The characterisation of cork at different strain rates was then carried out. An electromechanical testing machine was used to apply an uniaxial compression at quasi-static strain rates. Reinforced agglomerated cork was found to be anisotropic and strain-rate dependant. Its micro-structure reveals at complex composite material influencing strongly mechanical properties. Both Young's modulus and absorbed energy density at 0.6 strain increase with the cross-head speed displacement. From 12.7 MPa and 0.77 J · mm −3 when compressed at 0.05 mm · min −1 to 19.9 MPa and 1.44 J · mm −3 at 500 mm · min −1 in the Off-plane direction.
dc.language.isoen
dc.publisherEDP Sciences
dc.titleInfluence de la vitesse de sollicitation sur le comportement en compression d'un liège aggloméré renforcé
dc.title.enStrain Rate Effect on the Compressive Behaviour of Reinforced Cork Agglomerates
dc.typeArticle de revue
dc.identifier.doi10.1051/epjconf/201818303018
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph]
bordeaux.journalEPJ Web of Conferences
bordeaux.page03018
bordeaux.volume183
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-02355502
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02355502v1
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