Damage Generated In Carbon/epoxy Composite Plates With Holes Under Different Levels Of Impact Energy
Price
Free (open access)
Transaction
Volume
26
Pages
10
Published
2000
Size
871 kb
Paper DOI
10.2495/DM000181
Copyright
WIT Press
Author(s)
R.K. Luo, W.X. Wu, P.G.P. Gahagan & W.J. Mortel
Abstract
Damage generated in carbon/epoxy composite plates with holes under different levels of impact energy R. K. Luo, W X Wu, P G P. Gahagan & W J Mortel Department of Product Design Matalastik Ltd, UK Abstract Many research efforts have been made in the impact evaluation of composite structures without holes or cut-outs. In engineering design and applications it is inevitable to have such lack of continuity in composite structures. The work reported here investigates the damage induced in carbon/epoxy composite plates with holes under 0.44 J and 0.59 J impact. Both the simulation and the experiment show that there is only one matrix crack between the impact point and the holes under 0.44 J impact whereas there are two parallel matrix cracks under 0.59 J impact. From simulation of 0.44 J impact the crack initiates at impact point and propagates towards the holes. From simulation of 0.59 J impact one crack (originating crack) initiates at the point of impact and propagates to
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