Finite Element Analysis of Geometric Effects on Ballistic Clay Backing Material

Report No. ARL-TR-8805
Authors: Mary Jane Graham and Timothy G Zhang
Date/Pages: September 2019; 43 pages
Abstract: Advances in X-ray imagery give clearer details into the mechanisms involved in the formation of indentation during experiments of armor packets with clay backing material. The clay backing material has traditionally been a rectangular block. Limits on the power of X-ray flashers used, however, do not allow for imagery through the clay. Therefore, targets are modified to a cylindrical shape with maximum diameter of 6 inches. This paper is a numerical investigation into the effects of target geometry on the formation of the indentation crater in the backing material for both drop testing and impact testing.
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2019