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. 2017 Dec 25;376(2112):20170050. doi: 10.1098/rsta.2017.0050

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© 2017 The Author(s)

Published by the Royal Society. All rights reserved.

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Figure 2. — Photographs showing damage in (a) quasi-isotropic and (b) small-angle Bouligand carbon fibre-reinforced epoxy composites. Ultrasound images showing damage fields (indicated by dotted lines) in (c) quasi-isotropic and (d) small-angle Bouligand carbon fibre-reinforced epoxy composites. A visualization of impact damage in finite-element models of (e) quasi-isotropic and (f) small-angle Bouligand CFRPs, with nodal points coloured based on dominant failure mode. The top layer represents the impact surface. The wider distribution of damage in the Bouligand composites is clear in both the experimental (d) and simulation (f) results. Reproduced with permission [50]. Copyright © 2014, Elsevier.