Characterization of Fragment Spatial Distribution From Arena Testing Using Photo Analysis Software.

摘要

Arena testing is a widely used tool to characterize the spatial distribution of fragments upon detonation of different types of cased munitions. A semi-circular layout of 19 specially constructed capture packs was used to capture fragments created by each of two identical cased munitions. As a result, various images and data were constructed and collected that showed the spatial distribution of fragments from a cased munition including a panoramic image showing penetrations and their polar coordinates. With the panoramic image created, it was possible to calculate the percentage of fragments at any given location in the 180 degree span of the arena which helped to confirm predictions. Based upon the results of these tests, the information gathered has proven to be useful in several technology demonstrations for base hardening and protection. Having the capability to predict areas of concentrated fragment impact has enabled engineers to design structures to mitigate the effect of frag loading and its effect on the structure.