Hybrid effects in thin ply carbon/glass unidirectional laminates: Accurate experimental determination and prediction
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Experimental results are presented which allow the hybrid effect to be evaluated accurately for thin ply carbon/epoxy–glass/epoxy interlayer hybrid composites. It is shown that there is an enhancement in strain at failure of up to 20% for very thin plies, but no significant effect for thicker plies. Hybrid specimens with thick carbon plies can therefore be used to measure the reference carbon/epoxy failure strain. The latter is significantly higher than the strain from all-carbon specimens in which there is an effect due to stress concentrations at the load introduction. Models are presented which illustrate the mechanisms responsible for the hybrid effect due to the constraint on failure at both the fibre and ply level. These results give a good understanding of how variability in the carbon fibre strengths can translate into hybrid effects in composite laminates.
Date Issued
2016-04-26
Date Acceptance
2016-04-16
Citation
Composites Part A: Applied Science and Manufacturing, 2016, 88, pp.131-139
ISSN
1359-835X
Publisher
Elsevier
Start Page
131
End Page
139
Journal / Book Title
Composites Part A: Applied Science and Manufacturing
Volume
88
Copyright Statement
© 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://
creativecommons.org/licenses/by/4.0/).
creativecommons.org/licenses/by/4.0/).
License URL
Subjects
Materials
0912 Materials Engineering
0913 Mechanical Engineering
0901 Aerospace Engineering
Publication Status
Published