BibTex format
@inproceedings{Francesca:2020,
author = {Francesca, Pernice M and Robinson, P},
title = {Experimental investigation of low-velocity impact damage in pseudo-ductile composite laminates containing ply weakening},
year = {2020}
}
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Citation
RIS format (EndNote, RefMan)
TY - CPAPER
AB - © CCM 2020 - 18th European Conference on Composite Materials. All rights reserved. The damage resistance of a composite laminate configuration, which exhibits a pseudo-ductile stress-strain curve under tensile loading, was investigated. Pseudo-ductility was achieved by weakening some of the 0° plies in the laminate stacking sequence, by means of equally spaced, discontinuous cuts perpendicular to the fibres. Plies containing fibre cuts were embedded within 0° plies, in order to promote delamination onset from the ply cuts and propagation along the 0° fibre direction. This damage mechanism was demonstrated to cause a pseudo-ductile response in both unidirectional and multidirectional specimens in tension. Low-velocity impact tests were performed on specimens containing the cut fibres and on baseline specimens, with the same stacking sequence. Results showed a similar response to an impact event and a similar extent of damage in the baseline specimens and in the specimens containing ply weakening. It can be concluded that the strategy to achieve pseudo-ductility in composite laminates through discontinuous cuts perpendicular to the 0° fibre preserves the damage resistance of the material to a low-velocity impact event.
AU - Francesca,Pernice M
AU - Robinson,P
PY - 2020///
TI - Experimental investigation of low-velocity impact damage in pseudo-ductile composite laminates containing ply weakening
ER -