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Polypropylene foam behaviour under dynamic loadings: Strain rate, density and microstructure effects

hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorBOUIX, Rémy
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorVIOT, Philippe
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorLATAILLADE, Jean-Luc
dc.date.accessioned2021-05-14T10:03:12Z
dc.date.available2021-05-14T10:03:12Z
dc.date.issued2009-11
dc.identifier.issn0734-743X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/78371
dc.description.abstractEnExpanded polypropylene foams (EPP) can be used to absorb shock energy. The performance of these foams has to be studied as a function of several parameters such as density, microstructure and also the strain rate imposed during dynamic loading. The compressive stress-strain behaviour of these foams has been investigated over a wide range of engineering strain rates from 0.01 to 1500 s 1 in order to demonstrate the effects of foam density and strain rate on the initial collapse stress and the hardening modulus in the post-yield plateau region. A flywheel apparatus has been used for intermediate strain rates of about 200 s 1 and higher strain rate compression tests were performed using a viscoelastic Split Hopkinson Pressure Bar apparatus (SHPB), with nylon bars, at strain rates around 1500 s 1 EPP foams of various densities from 34 to 150 kgm 3 were considered and microstructural aspects were examined using two particular foams. Finally, in order to assess the contribution of the gas trapped in the closed cells of the foams, compression tests in a fluid chamber at quasi-static and dynamic loading velocities were performed.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPolypropylene foam
dc.subject.enClosed cells
dc.subject.enHigh strain rate compression
dc.subject.enSplit Hopkinson Pressure Bar
dc.title.enPolypropylene foam behaviour under dynamic loadings: Strain rate, density and microstructure effects
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ijimpeng.2007.11.007
dc.subject.halSciences de l'ingénieur [physics]/Matériaux
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Génie mécanique [physics.class-ph]
dc.subject.halPhysique [physics]/Mécanique [physics]/Génie mécanique [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Matériaux et structures en mécanique [physics.class-ph]
dc.subject.halPhysique [physics]/Mécanique [physics]/Matériaux et structures en mécanique [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph]
dc.subject.halPhysique [physics]/Mécanique [physics]/Mécanique des matériaux [physics.class-ph]
bordeaux.journalInternational Journal of Impact Engineering
bordeaux.page329-342
bordeaux.volume36
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-00871572
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00871572v1
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