Skip to Main Content
Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1710694
A reverse-ballistic impact technique is described for multiple impacts of macroscopic particles on a disk of material. The disk is accelerated in a sabot. The spatial and temporal separation of the particles can be controlled by the relative positions of the particles in a frangible mechanical support. Example results for closely spaced simultaneous impacts of multiple steel spheres with steel disks show synergistic effects in the perforation response of the disks. A hollow sabot design permits the sabot to move past the disk and spheres after impact, to minimize the influence of the sabot on the perforation process. Experiments have been performed at speeds up to 970 m/s.