Influence of Z-pin embedded length on the interlaminar traction response of multi-directional composite laminates

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dc.contributor.authorYasaee, Mehdi
dc.contributor.authorBigg, Lawrence
dc.contributor.authorMohamed, Galal
dc.contributor.authorHallett, Stephen R.
dc.date.accessioned2017-01-04T09:31:34Z
dc.date.available2017-01-04T09:31:34Z
dc.date.issued2016-11-10
dc.description.abstractThe work in this paper investigated the performance of composites through-thickness reinforcing Z-pins as a function of their embedded length in pre-preg laminates. Single Z-pins were inserted into multidirectional carbon fibre laminates with increasing thicknesses, corresponding to embedded lengths from 1 mm to 10 mm and tested through a range of mixed mode displacement ratios to investigate their interlaminar bridging traction response. Detailed analysis of the tests revealed a non-linear tangential friction response and its strong dependence on the embedded length of the Z-pin. Using a new power law empirical relationship for the tangential friction force per unit length, a modified Z-pin bridging traction analytical model was proposed, giving good predictions of the full mixed mode bridging mechanics of a CFRP Z-pin in a multidirectional composite laminate of varying thickness. Several characteristics of the model are discussed and their influence on predicting the Z-pin bridging energy response have been analysed.en_UK
dc.identifier.citationYasaee M, Bigg L, Mohamed G, Hallett SR, Influence of Z-pin embedded length on the interlaminar traction response of multi-directional composite laminates, Materials & Design, Volume 115, 5 February 2017, Pages 26–36en_UK
dc.identifier.cris15930383
dc.identifier.issn0264-1275
dc.identifier.urihttp://dx.doi.org/10.1016/j.matdes.2016.11.025
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11203
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectStructural compositesen_UK
dc.subjectZ-pinsen_UK
dc.subjectDelaminationen_UK
dc.subjectFracture toughnessen_UK
dc.subjectAnalytical modelen_UK
dc.titleInfluence of Z-pin embedded length on the interlaminar traction response of multi-directional composite laminatesen_UK
dc.typeArticleen_UK

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