Abstract
Low-velocity penetration damage behaviors of Kevlar woven fabrics impregnated with shear thickening fluid (STF) were investigated. Cone-shaped tup (CST) and hemispheric tup (HST) were employed to penetrate fabric/STF composites with the velocities of 1.5 m/s and 3.0 m/s under drop-weight tests. The fabric impregnated with 3:1 diluted volume ratio has the highest energy absorption and the lowest deformation. The peak load and energy absorption under HST penetration at 3.0 m/s are 2.0 kN and 36.7 J, which are higher than the CST penetration. Energy absorption increment under HST penetration at 3.0 m/s is 61.76% while 117.88% for CST penetration.
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