CHARACTERIZATION OF BEHIND-ARMOR DEBRIS PARTICLES FROM TUNGSTEN PENETRATORS

摘要

Behind-armor debris (BAD) is affected by penetrator parameters: impact velocity and diameter. In [1, 2], we reported on the effects of velocity. In this paper, we will report on the effects of penetrator diameter. Targets were 6061-T6 aluminum, and penetrators were 91% W-Ni-Co alloy. Behind the target there was a witness pack composed of five steel plates of increasing thickness. Velocities were 1.7 to 2.6 km/s. Measurements primarily consisted of witness plate perforation patterns. It was found that as diameter was increased, there was little change in the number of debris particles generated, as measured by the number of perforations in the first witness plate. However, the penetrating power of the particles strongly increased with rod diameter as seen by the increase in number of holes in witness plates three through five.