Multi-impact mechanical behaviour of short fibre reinforced composites

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Show simple item record Garzón Hernández, Sara García González, Daniel Arias Hernández, Ángel 2021-04-22T09:48:47Z 2021-04-22T09:48:47Z 2018-10-15
dc.identifier.bibliographicCitation Garzon-Hernandez S., Garcia-Gonzalez D. & Arias A. (2018). Multi-impact mechanical behaviour of short fibre reinforced composites. Composite Structures, vol. 202, pp. 241-252.
dc.identifier.issn 0263-8223
dc.description.abstract High velocity transverse impact on reinforced composites is a matter of interest in the automotive, aeronautical and biomedical sectors. Most existing studies have addressed this problem by single isolated impacts; however, this work deals with the distinction between single, sequential and simultaneous impacts on composite structures. This paper proposes an experimental methodology to study the mechanical behaviour of materials under single and multi-impact loadings. The overall objective is to investigate the mechanical response of short carbon fibre reinforced PEEK when is subjected to single and multiple high velocity impacts. Experimental tests are conducted covering impact velocities from 90 m/s to 470 m/s. Energy absorption, damage extension and failure mechanisms are compared to assess additive and cumulative effects in high velocity impact scenarios. Experimental results show that the specific deformation and fracture mechanisms observed during multi-hitting events change with impact velocity. Compared to the behaviour of unreinforced thermoplastics, short fibre reinforced composites present significant limitations at velocities close to the ballistic limit, but multi-hit capability is observed at high impact velocity when the damage is mainly local. As key conclusion, the ballistic limit obtained in single impact test cannot be extrapolated to sequential and simultaneous tests. Multi-impact tests, especially close to the ballistic limit, are necessary to guarantee the structural integrity of composite structures in realistic impact scenarios.
dc.description.sponsorship The researchers are indebted to Ministerio de Economía y Competitividad de España (Project DPI2014-57989-P) and Vicerrectorado de Política Científica UC3M (Project 2013-00219-002) for financial support.
dc.format.extent 12
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2018 Elsevier Ltd.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Multi-impact
dc.subject.other Short fibre reinforced thermoplastics
dc.subject.other PEEK composites
dc.subject.other Perforation
dc.subject.other Brittle failure
dc.subject.other High velocity impact
dc.subject.other Polyether-ether-ketone
dc.title Multi-impact mechanical behaviour of short fibre reinforced composites
dc.type article
dc.subject.eciencia Ingeniería Mecánica
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. DPI2014-57989-P
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 241
dc.identifier.publicationlastpage 252
dc.identifier.publicationtitle Composite Structures
dc.identifier.publicationvolume 202
dc.identifier.uxxi AR/0000022014
dc.contributor.funder Ministerio de Economía y Competitividad (España)
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