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Stress analysis of single-bolt, single-lap, countersunk composite joints with variable bolt-hole clearance

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Show simple item record Egan, Brian McCarthy, Conor T. McCarthy, Michael A. Frizzell, Ronan 2013-10-23T09:05:50Z 2013-10-23T09:05:50Z 2012
dc.identifier.citation Egan, B,McCarthy, CT,McCarthy, MA,Frizzell, RM (2012) 'Stress analysis of single-bolt, single-lap, countersunk composite joints with variable bolt-hole clearance'. Composite Structures, 94 :1038-1051. en_US
dc.description peer-reviewed en_US
dc.description.abstract Single-lap, carbon-epoxy joints with countersunk fasteners were modelled using the nonlinear finite element code Abaqus. A highly-detailed analysis of the stress distribution at the countersunk hole boundary is provided. Bolt-hole clearance, which arises due to limitations in manufacturing capabilities, is modelled extensively. Clearance levels both inside and outside typical aerospace fitting tolerances are studied and the finite element model is validated with experimental data. Plots of radial stress in each ply of the countersunk laminate show the load transfer to be severely localised, with only a few plies bearing the majority of the load. The inclusion of clearance in the model was shown to result in far higher radial stresses compared to those in the neat-fit joint model. An associated loss in joint stiffness of more than 10% was recorded for the highest clearance considered (240 mu m). Finally compressive through-thickness stresses are shown to be present at the damageable region of the countersunk hole, and increase with bolt-hole clearance. These compressive stresses, which are an indicator of lateral constraint, are seen to suppress "brooming" failure in the countersunk laminate. (C) 2011 Elsevier Ltd. All rights reserved. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Composite Structures;94(3), pp. 1038-1051
dc.rights This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 94(3), pp. 1038-1051, doi 10.1016/j.compstruct.2011.10.004 en_US
dc.subject finite element analysis en_US
dc.subject carbon-epoxy en_US
dc.subject clearance en_US
dc.subject bolted joints en_US
dc.subject countersunk en_US
dc.subject bearing failure en_US
dc.subject mechanically fastened joints en_US
dc.subject bearing strength en_US
dc.subject part ll en_US
dc.subject prediction en_US
dc.subject behavior en_US
dc.subject loads en_US
dc.title Stress analysis of single-bolt, single-lap, countersunk composite joints with variable bolt-hole clearance 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 2013-10-22T12:57:59Z
dc.description.version Accepted
dc.contributor.sponsor IRCSET en_US
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor HEA en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1387511
dc.internal.copyrightchecked Yes
dc.description.status peer-reviewed

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