Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites

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Czél, Gergely and Rev, Tamas and Jalalvand, Meisam and Fotouhi, Mohamad and Longana, Marco L. and Nixon-Pearson, Oliver J. and Wisnom, Michael R. (2018) Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites. Composites Part A: Applied Science and Manufacturing, 104. pp. 151-164. ISSN 1359-835X (https://doi.org/10.1016/j.compositesa.2017.10.028)

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Abstract

Un-notched and notched tensile response and damage accumulation of quasi-isotropic carbon/epoxy hybrid laminates made of ultra-high modulus and intermediate modulus carbon fibre/epoxy thin-ply prepregs were studied. It was confirmed that the ply fragmentation demonstrated previously in unidirectional hybrids as a successful pseudo-ductility mechanism can be transferred to multi-directional laminates. Furthermore, reduced notch sensitivity was demonstrated in quasi-isotropic specimens for both open holes and sharp notches as a result of local ply fragmentation around the notch.

ORCID iDs

Czél, Gergely, Rev, Tamas, Jalalvand, Meisam ORCID logoORCID: https://orcid.org/0000-0003-4691-6252, Fotouhi, Mohamad, Longana, Marco L., Nixon-Pearson, Oliver J. and Wisnom, Michael R.;
CORE (COnnecting REpositories)