Journal article
Dynamic bridging mechanisms of through-thickness reinforced composite laminates in mixed mode delamination
- Abstract:
- Delamination resistance of composite laminates can be improved with through-thickness reinforcement such as Z-pinning. This paper characterises the bridging response of individual carbon fibre/BMI Z-pins in mixed mode delamination at high loading rate using a split Hopkinson bar system. The unstable failure process in quasi-static tests, was also captured with high sampling rate instruments to obtain the complete bridging response. The energy dissipation of the Z-pins were analysed, and it was found that the efficacy of Z-pinning in resisting delamination growth decreased with an increase in mixed mode ratio, with a transition from pull-out to pin rupture occurring. The Z-pin efficacy decreased with loading rate for all mode mix ratios, due to the changing in failure surface with loading rate and rate-dependent frictional sliding.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 1.8MB, Terms of use)
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- Publisher copy:
- 10.1016/j.compositesa.2017.11.017
Authors
- Publisher:
- Elsevier
- Journal:
- Composites Part A: Applied Science and Manufacturing More from this journal
- Volume:
- 106
- Pages:
- 24-33
- Publication date:
- 2017-11-23
- Acceptance date:
- 2017-11-22
- DOI:
- ISSN:
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1359-835X
- Keywords:
- Pubs id:
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pubs:795417
- UUID:
-
uuid:04212a32-903f-440e-8b72-f823f13f00d7
- Local pid:
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pubs:795417
- Source identifiers:
-
795417
- Deposit date:
-
2017-11-22
Terms of use
- Copyright holder:
- Elsevier Ltd
- Copyright date:
- 2017
- Notes:
- Copyright © 2017 Elsevier Ltd. This is the accepted manuscript version of the article. The final version is available online from Elsevier at: https://doi.org/10.1016/j.compositesa.2017.11.017
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