Impact behaviour of Dyneema® fabric-reinforced composites with different resin matrices |
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| Institution: | 1. TKC Global Inc, Aberdeen Proving Ground, MD 21005, USA;2. US Army Research Laboratory, Aberdeen Proving Ground, MD 21005, USA;1. School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia;2. Defence Science and Technology Organisation, 506 Lorimer St., Fishermans Bend, Victoria 3207, Australia;3. Defence Materials Technology Centre, 24 Wakefield St., Hawthorn, Victoria 3122, Australia;1. Department of Aeronautics, Imperial College of Science and Technology, London, UK;2. DSTL, Porton Down, UK |
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| Abstract: | This paper presents an experimental study on the impact behaviour of composite laminates made of a Dyneema® woven fabric and four different resin matrices. Three thicknesses of each kind of resin laminate were subjected to impact by a spherical steel projectile in a velocity regime ranging from 100 to 200 m/s. The results revealed that the laminates having flexible matrices performed much better in perforation resistance and energy absorption, but had a greater extent of deformation and damage than the counterparts with rigid matrices. It was found that the matrix rigidity played a crucial role in controlling the propagation of transverse deformation, and thereby the local strain and perforation resistance of laminates. The more rigid matrix restrained the laminate's transverse deformation to a smaller area at a given time, which led to higher local strain and lower perforation resistance. Fibre failure in tension was identified as the dominant failure mechanism for the tested laminates. |
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| Keywords: | Impact behaviour UHMWPE fibre Energy absorption Composite laminate Thermoset resin |
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