Effect of striker shape on impact energy absorption of a shear thickening fluid

This study examines the effect of striker shape on the energy absorption of a shear thickening fluid (STF) with 58.8 vol% styrene/acrylate co-polymer particles in ethylene glycol (EG). Low-velocity impact tests were performed on the STF with six different strikers: three cone-shaped strikers and three flat-head strikers with different diameters. Higher total impact energy absorption was recorded for the flat-head strikers, yet lower maximum penetration depth than the cone-shaped strikers of the same diameter. The total impact energy absorption also increased when the striker diameter increased, but with lower penetration depth.

Automated summary

This study found that the shape of the striker affects the energy absorption of STF, with flat-head strikers showing higher total impact energy absorption but lower maximum penetration depth compared to cone-shaped strikers. Additionally, as the diameter of the striker increased, the total impact energy absorption also increased with a decrease in penetration depth.