The Ballistic Performance of Multi-Layer Kevlar Fabrics Impregnated with Shear Thickening Fluids

作者：Yan Wang, Shu Kui Li, Xin Feng · 发表于：Applied Mechanics and Materials · 年份：2015 · DOI：10.4028/www.scientific.net/amm.782.153 · 被引用次数：15 · 研究领域：Textile materials and evaluations、Fire dynamics and safety research、Sports Dynamics and Biomechanics

This study investigates the ballistic penetration performance of aramid fabric impregnated with shear thickening fluid. The ballistic test was conducted at impact velocity of 445 m/s, and three types of shear thickening fluids prepared with silica particles of different sizes (200nm, 340nm and 480nm) are involved. The results demonstrate an enhancement in ballistic properties of fabric due to the impregnation of shear thickening fluids. The fabrics with smaller particle size show better ballistic performance. Microscopic observation of aramid fabric reveals that shear thickening fluids with smaller silica particles have a better adhesion on and between yarns, enhancinging the coupling effect between yarns. The corresponding mechanism was discussed in the paper.