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Title: Impact damage in woven carbon fibre/epoxy laminates: Analysis of damage and dynamic strain fields
Authors: Coles, Laurence A.
Roy, Anish
Voronov, Leonid
Semenov, Sergey
Nikhamkin, Mikhail
Sazhenkov, Nickolay
Silberschmidt, Vadim V.
Keywords: Ballistic impact
CFRP
X-ray tomography
Deformation
Damage
Digital image correlation
Issue Date: 2017
Publisher: © The Authors. Published by Elsevier
Citation: COLES, L.A. ...et al., 2017. Impact damage in woven carbon fibre/epoxy laminates: Analysis of damage and dynamic strain fields. Procedia Engineering, 199, pp. 2500-2505.
Abstract: © 2017 The Authors. Published by Elsevier Ltd. In this study the resultant ballistic dynamic response observed in a 2x2 twill weave T300 carbon fibre/epoxy composite flat-plate specimen is examined, using a combination of non-invasive analysis techniques. The study investigates deformation and damage caused by impacts of two types of projectiles: solid (steel) travelling with velocity of 70-90 m/s, and fragmenting (ice) with the velocity in the range of 300-500 m/s. Digital image correlation was employed to obtain displacement and to estimate dynamic strain fields from the rear surfaces of the specimens during each experiment. 3D X-ray computer tomography (CT) was used to image and visualize the resultant damage inside the samples. It was shown that solid projectiles lead to greater localized deformation and in some cases penetration, whereas fragmenting projects destroyed on impact cause a more distributed impact load but can lead to major front-surface damage depending on the depth of indentation before fragmentation.
Description: This paper was presented at the X International Conference on Structural Dynamics, EURODYN 2017, Rome, Italy, 10-13th Sept. This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (CC BY-NC-ND). Full details of this licence are available at: http://creativecommons.org/licenses/by-nc-nd/4.0/
Version: Published
DOI: 10.1016/j.proeng.2017.09.420
URI: https://dspace.lboro.ac.uk/2134/27988
Publisher Link: https://doi.org/10.1016/j.proeng.2017.09.420
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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