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Effect of block copolymer nano-reinforcements on the low velocity impact response of sandwich structures

hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorRAMAKRISHNAN, Karthik Ram
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorGUERARD, Sandra
hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorVIOT, Philippe
hal.structure.identifierSchool of Engineering [Canberra]
dc.contributor.authorSHANKAR, Krishna
dc.date.accessioned2021-05-14T10:02:34Z
dc.date.available2021-05-14T10:02:34Z
dc.date.issued2014
dc.identifier.issn0263-8223
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/78331
dc.description.abstractEnSandwich composites with fibre reinforced plastic (FRP) facesheets have emerged as a major class of lightweight structural materials in a wide range of engineering fields including aerospace, automotive and marine structures. This is due to attractive mechanical properties such as high specific stiffness and high strength. However, sandwich structures are susceptible to damage caused by impact. The objective of this paper is to evaluate the dynamic response of sandwich composites based on Kevlar fibre reinforced epoxy and Rohacell foam. The improvement in impact performance of these sandwich structures that can be achieved by the addition of nanoparticles in the resin matrix is investigated. Nanostrength, an acrylate triblock copolymer that self-assembles in the nanometer scale is added to the epoxy matrix. The effect of the nano-reinforcements on flat sandwich plates under low velocity impact is investigated at different scales. An instrumented drop tower setup is used for the low velocity impact tests of the sandwich plates with neat or nano-reinforced epoxy matrix, at different energies. The macroscopic response of the sandwich structure and the microscopic phenomena involved in dissipating the impact energy are identified and compared for sandwich plates with and without nanoparticles.
dc.language.isoen
dc.publisherElsevier
dc.subject.enblock copolymer
dc.subject.endrop tower
dc.subject.enlow velocity impact
dc.subject.enkevlar
dc.subject.ensandwich
dc.title.enEffect of block copolymer nano-reinforcements on the low velocity impact response of sandwich structures
dc.typeArticle de revue
dc.identifier.doi10.1016/j.compstruct.2013.12.001
dc.subject.halSciences de l'ingénieur [physics]/Matériaux
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-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]
bordeaux.journalComposite Structures
bordeaux.page174-182
bordeaux.volume110
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-00925232
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00925232v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Composite%20Structures&rft.date=2014&rft.volume=110&rft.spage=174-182&rft.epage=174-182&rft.eissn=0263-8223&rft.issn=0263-8223&rft.au=RAMAKRISHNAN,%20Karthik%20Ram&GUERARD,%20Sandra&VIOT,%20Philippe&SHANKAR,%20Krishna&rft.genre=article


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