ENERGY ATTENUATION CAPABILITY OF WOVEN NATURAL SILK (WNS)/EPOXY COMPOSITES PLATES SUBJECTED TO DROP-WEIGHT IMPACTS

Conference proceedings article

Authors / Editors

Ude, Albert

Research Areas

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Publication Details

Author list: Ude AU, Sopian K, Azhari CH

Publisher: MINERALS, METALS & MATERIALS SOC

Place: WARRENDALE

Publication year: 2010

Start page: 115

End page: 122

Number of pages: 8

ISBN: 978-0-87339-752-0

Languages: English-Great Britain (EN-GB)

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Abstract

The impact energy attenuation and damage characteristics of woven natural silk (WNS)/epoxy laminated composite panels were evaluated. The Samples prepared in configurations of sandwich WNS/epoxy/honeycomb, WNS/epoxy/coremat WNS/epoxy/foam and reinforced WNS/Epoxy laminate panels were subjected to low velocity impact loading at energy levels of 32J, 48J and 64J respectively. Impact parameters like load-deflection, load-time and absorbed energy-time behaviour were measured for evaluating the impact performance in terms of load bearing capabilities, energy absorption and failure modes. Evaluation of the results showed WNS/epoxy/coremat as possessing better load bearing capability qualities. In general energy absorption decreases as impact energy increases in all the composite samples; WNS/epoxy/foam was seen as better energy absorber. Damage areas increases as impact energy increases while time to response decreases with increase in impact energy in all the configurations. SEM micrographs show mode of failure as matrix crack, delamination and fibre breakage.

Keywords

Attenuation of energy, Impact, Sandwich composites, Woven natural silk

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