Abstract
An experimental investigation was performed to study impact on targets moving at right angles to the striker trajectory with a velocity of 40 m/s. Tests were executed with a compressed gas gun using 6.35 mm diameter, 38.1 mm long hard steel blunt-nosed cylindrical strikers in the velcity range 49–213 m/s and with a powder gun using a blunt 9.53 mm diameter cylindrical projectile with an aspect ratio of 2 up to velocities of 492 m/s. The post-impact projectile trajectory and attitute as well as the configuration of the craters produced in thin targets of cold-rolled steel and soft aluminum were observed. The impact process produced asymmetric plugging followed by either front or side petaling. The latter phenomenon was found to be controlled by the ultimate tensile strain of the target and the ratio of the projectile to target speed. The test parameters and resulting data were primarily selected to permit comparison with the predictions of an analytical model of the process described in a companion paper.
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