Hypervelocity impact tests against metallic meshes

The purpose of this study is to investigate fragment clouds generated by hypervelocity impacts (HVIs) on metallic meshes. The HVIs tests have been conducted with a two-stage light gas gun facility at Kyushu Institute of Technology. Projectiles were launched at 3 km/s. Radiographs of the fragment cloud generated by the impact of the projectile on the mesh were taken with three flash X-rays. As a result, it was found that the velocity of the fragment cloud at the cloud center of gravity was up to 35% slower than the impact velocity of the projectile.