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Abstract
Multi-Directional hybrid composites can suffer from free-edge delamination, a damage mode that doesn't exist in Uni-Directional hybrid composites and can hinder the pseudo-ductility that can be achieved with thin-ply hybrids. This paper presents a new lay-up concept called ‘orientation-dispersed’ laminates to avoid this mode of damage in quasi-isotropic hybrids. It is shown that the energy release rates at the free-edges of orientation-dispersed layups are significantly lower than those in ‘orientation-blocked’ laminates. Finally, the experimental results from two quasi-isotropic layups with π/3 and π/4 intervals are presented showing a good pseudo-ductility with no free-edge delamination.
Original language | English |
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Pages (from-to) | 232-240 |
Number of pages | 9 |
Journal | Composites Science and Technology |
Volume | 153 |
Early online date | 17 Oct 2017 |
DOIs | |
Publication status | Published - 1 Dec 2017 |
Keywords
- Hybrid composites
- Fragmentation
- Non-linear behaviour
- Stress/strain curves
- Finite Element Analysis (FEA)
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Dive into the research topics of 'Orientation-dispersed pseudo-ductile hybrid composite laminates – A new lay-up concept to avoid free-edge delamination'. Together they form a unique fingerprint.Projects
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HiPerDuCT - Programme Grant - Full Proposal
Bond, I. P. (Co-Principal Investigator), Etches, J. A. (Researcher), McAlpine, H. C. (Manager), Potter, K. D. (Co-Principal Investigator), Weaver, P. M. (Co-Principal Investigator), Bismarck, A. (Co-Principal Investigator), Shaffer, M. (Co-Principal Investigator) & Wisnom, M. R. (Principal Investigator)
1/07/11 → 30/06/18
Project: Research