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Journal of Materials Science

, Volume 38, Issue 13, pp 2825–2833 | Cite as

The ballistic impact characteristics of Kevlar® woven fabrics impregnated with a colloidal shear thickening fluid

  • Young S. Lee
  • E. D. Wetzel
  • N. J. WagnerEmail author
Article

Abstract

This study reports the ballistic penetration performance of a composite material composed of woven Kevlar® fabric impregnated with a colloidal shear thickening fluid (silica particles (450 nm) dispersed in ethylene glycol). The impregnated Kevlar fabric yields a flexible, yet penetration resistant composite material. Fragment simulation projectile (FSP) ballistic penetration measurements at ∼244 m/s have been performed to demonstrate the efficacy of the novel composite material. The results demonstrate a significant enhancement in ballistic penetration resistance due to the addition of shear thickening fluid to the fabric, without any loss in material flexibility. Furthermore, under these ballistic test conditions, the impregnated fabric targets perform equivalently to neat fabric targets of equal areal density, while offering significantly less thickness and more material flexibility. The enhancement in ballistic performance is shown to be associated with the shear thickening response, and possible mechanisms of fabric-fluid interaction during ballistic impact are identified.

Keywords

Composite Material Silica Particle Fabric Target Areal Density Ballistic Test 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  1. 1.Department of Chemical Engineering and Center for Composite MaterialsUniversity of DelawareNewarkUSA
  2. 2.Army Research LaboratoryUSA

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