21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-5.9.1

COMPRESSIONS AFTER IMPACT BEHAVIOUR OF MULTILAYER WOVEN GLASS/VINYL ESTER COMPOSITES

Bannister M., Callus P.*, Herszberg I.**
Cooperative Research Centre for Advanced Composite Structures, Australia; *DTSO, Australia; **RMIT, Australia

Keywords: impact behaviour, multilayer woven glass / vinyl, ester composites

The impact performance of E-glass reinforced composite materials was examined. A number of2D and 3D weave architectures were tested and their compression-after impact (Cal) properties were related to their weave architecture. It was found that there was no significant difference in the impact resistance of thee various materials, however the impact tolerance was very dependant upon the weave architecture. Highly crimped weave architectures and those containing through thickness reinforcement were observed to give the best impact tolerance. One of the 3D weaves investigated was observed to have an improvement in Cal strength of up to 50% over a 2D weave typical of those used in aerospace composite structures.

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