The Effect of Particle Strength on the Ballistic Resistance of Shear Thickening Fluids

TL;DR

This study investigates how particle strength influences the ballistic resistance of shear thickening fluids (STFs), highlighting their potential as armor materials and identifying velocity ranges where they are effective.

Contribution

It uniquely isolates the effects of fluid density and particle strength on the ballistic performance of pure STFs, advancing understanding of their armor capabilities.

Findings

Particle strength affects ballistic resistance at higher impact velocities.

Fluid density influences the initial ballistic response.

Effective armor performance is limited to specific velocity ranges.

Abstract

The response of shear thickening fluids (STFs) under ballistic impact has received considerable attention due to its field-responsive nature. While efforts have primarily focused on the response of traditional ballistic fabrics impregnated with fluids, the response of pure STFs to penetration has received limited attention. In the present study, the ballistic response of pure STFs is investigated and the effect of fluid density and particle strength on ballistic performance is isolated. The loss of ballistic resistance of STFs at higher impact velocities is governed by particle strength, indicating the range of velocities over which they may provide effective armor solutions.