EFFECT OF 7.62MM ROUND MASS AND COMPOSITE ARMOR AREAL DENSITY ON CLAY BACKFACE DEFORMATION AND CLAY INTERNAL PRESSURE

摘要

A series of tests were conducted to measure the backface deformation (BFD) andassociated peak pressures in clay due to non-perforating 7.62mm projectile impacts oncomposite body armor test panels. The range of rounds tested had no significant effect onthe clay BFD. However, the different rounds had a statistically significant effect on thepeak pressures measured. In contrast, for the range of armor areal densities measured, theareal density had a statistically significant effect on the clay BFD but did not have astatistically significant effect on the peak pressure measured. This difference between clayBFD and internal pressure response suggests that the clay BFD and peak pressure measuredifferent characteristics of the impact event.