Dynamic mode II delamination in through thickness reinforced composites

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dc.contributor.authorYasaee, Mehdi
dc.contributor.authorMohamed, Galal
dc.contributor.authorPellegrino, Antonio
dc.contributor.authorPetrinic, Nik
dc.contributor.authorHallett, Stephen R.
dc.date.accessioned2016-10-28T10:07:23Z
dc.date.available2016-10-28T10:07:23Z
dc.date.issued2016-09-21
dc.description.abstractThrough thickness reinforcement (TTR) technologies have been shown to provide effective delamination resistance for laminated composite materials. The addition of this reinforcement allows for the design of highly damage tolerant composite structures, specifically when subjected to impact events. The aim of this investigation was to understand the delamination resistance of Z-pinned composites when subjected to increasing strain rates. Z-pinned laminated composites were manufactured and tested using three point end notched flexure (3ENF) specimens subjected to increasing loading rates from quasi-static (~0m/s) to high velocity impact (5m/s), using a range of test equipment including drop weight impact tower and a split Hopkinson bar (SHPB). Using a high speed impact camera and frame by frame pixel tracking of the strain rates, delamination velocities as well as the apparent fracture toughness of the Z-pinned laminates were measured and analysed. Experimental results indicate that there is a transition in the failure morphology of the Z-pinned laminates from quasi-static to high strain rates. The fundamental physical mechanisms that generate this transition are discussed.en_UK
dc.identifier.citationYasaee M, Mohamed G, Pellegrino A, Petrinic N, Hallett SR, Dynamic Mode II Delamination in Through Thickness Reinforced Composites, Fracture, Fatigue, Failure and Damage Evolution, Volume 8, Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics.en_UK
dc.identifier.isbn978-3-319-42194-0
dc.identifier.issn2191-5644
dc.identifier.urihttp://dx.doi.org/ 10.1007/978-3-319-42195-7_13
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10902
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsPublished by Springer. This is the author accepted manuscript. The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-42195-7_13 Please refer to any applicable publisher terms of use.
dc.subjectThrough thickness reinforcementen_UK
dc.subjectdamage toleranceen_UK
dc.subjectdelamination testingen_UK
dc.subjectZ-pinsen_UK
dc.subjectstrain rateen_UK
dc.subjectimpacten_UK
dc.titleDynamic mode II delamination in through thickness reinforced compositesen_UK
dc.typeBook chapteren_UK

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