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An experimental investigation into multi-scale damage progression in laminated composites in bending

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Show simple item record Mortell, Daniel J Tanner, David A. McCarthy, Conor T. 2016-08-17T10:45:30Z 2016-08-17T10:45:30Z 2016
dc.description peer-reviewed en_US
dc.description.abstract In laminated composite materials fibre-matrix debonding, as an initial damage mechanism, can initiate a damage sequence that can result in catastrophic failure of its structure by promoting intermediate damage mechanisms. This paper presents an in-depth experimental investigation into each of these damage mechanisms and how they transition from one state to the next, beginning at the micro-scale with fibre-matrix debonding and crack coalescence, to transverse ply fracture at the meso-scale through to formation of macroscopic delamination.In-situ SEM micro-mechanical testing is used to determine the onset of the aforementioned damage mechanisms and to follow their progression in laminates of both [0/90]s and [90/0]s stacking sequences. The damage progression of [0/90]s specimens is presented first, followed by the more progressive failure of [90/0]s specimens, yielding an in-depth analysis of both rapid and more progressive damage growth, respectively. The intralaminar cracking and delamination of [0/90]s laminates was found to be instantaneous and provided limited opportunity to characterise damage progression. For [90/0]s laminates, damage progression was much more progressive and various factors such as fibre positioning were shown to influence debonding initiation and crack path development before catastrophic failure and so these laminates form the bulk of the analysis presented for this paper. (C) 2016 The Authors. Published by Elsevier Ltd. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Composite Structures;149, pp. 33-40
dc.rights 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-NDlicense en_US
dc.subject transverse cracking en_US
dc.subject damage mechanics en_US
dc.subject delamination en_US
dc.subject strength en_US
dc.subject growth en_US
dc.title An experimental investigation into multi-scale damage progression in laminated composites in bending en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2016-08-17T10:38:37Z
dc.description.version PUBLISHED
dc.identifier.doi 10.1016/j.compstruct.2016.03.054
dc.contributor.sponsor SFI en_US
dc.relation.projectid SFI 13/IA/1833 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1642740
dc.internal.copyrightchecked Yes
dc.description.status peer-reviewed

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