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Articles

Evaluation of ballistic performance of hybrid Kevlar®/Cocos nucifera sheath reinforced epoxy composites

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Pages 1179-1189 | Received 02 Aug 2018, Accepted 07 Nov 2018, Published online: 26 Dec 2018
 

Abstract

The aim of this research is replacement of petroleum resource-based costlier Kevlar® 29 fabric (K) with a naturally woven novel Cocos nucifera sheath (CS) for ballistic applications. Cocos nucifera sheath is a bio waste, and it is termed as ‘Natural Textile’. Nine and twelve layered hybrid and nonhybrid laminates were fabricated with different layering sequence by hand lay-up method followed by hot pressing. Energy absorption and ballistic limit of the laminated composites were evaluated using a single stage gas gun ballistic setup with 8 mm hemispherical stainless steel projectile. The obtained results revealed that hybrid composites and CS/epoxy composite panels exhibited higher energy absorption (30%) and ballistic limit (13%) compared to Kevlar® fabric/epoxy composites. It is due to CS’s chemical composition, architecture, and unique shock wave dissipation mechanism. Hence, this new eco-friendly material will efficiently replace Kevlar® fabric in the ballistic composites.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

We are thankful to Ministry of Higher Education for Providing HICOE project [Grant no: 6369108] to INTROP, UPM for doing this work.

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