Coupon scale Z-pinned IM7/8552 delamination tests under dynamic loading

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dc.contributor.authorCui, Hao
dc.contributor.authorMahadik, Yusuf
dc.contributor.authorHallett, Stephen R.
dc.contributor.authorPartridge, Ivana K.
dc.contributor.authorAllegri, Giuliano
dc.contributor.authorPonnusami, Sathiskumar A.
dc.contributor.authorPetrinic, Nik
dc.date.accessioned2019-08-07T14:02:01Z
dc.date.available2019-08-07T14:02:01Z
dc.date.issued2019-08-01
dc.description.abstractDynamic impact onto laminated composite structures can lead to large-scale delamination. This can be mitigated by the introduction of through-thickness reinforcement, such as z-pins. Here, mode I & II and mixed-mode delamination tests have been designed and conducted at high loading rate, for both unpinned and Z-pinned coupons to study the effect of rate of loading. It was found that the Z-pins were not effective in delaying the dynamic crack initiation or resisting the dynamic propagation of delaminations shorter than 5 mm. However, the further growth of cracks was substantially delayed by Z-pinning, especially for the pure mode I and mode I dominated failure modes. On the other hand, the effectiveness of Z-pins in shear tests was relatively modest. The mode I dominated delamination resistance of Z-pinned laminates was found to be sensitive to the loading rate.en_UK
dc.identifier.citationCui H, Mahadik Y, Hallett SR, et al., (2019) Coupon scale Z-pinned IM7/8552 delamination tests under dynamic loading. Composites Part A: Applied Science and Manufacturing, Volume 125, October 2019, Article Number 105565en_UK
dc.identifier.issn1359-835X
dc.identifier.urihttps://gov.org/10.1016/j.compositesa.2019.105565
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14415
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.relation.ispartofseries;105565
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectThrough-thickness reinforcementen_UK
dc.subjectDelaminationen_UK
dc.subjectFracture Mechanicsen_UK
dc.titleCoupon scale Z-pinned IM7/8552 delamination tests under dynamic loadingen_UK
dc.typeArticleen_UK

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