Analysis of high-explosive fragmenting shell impact into spaced plates

This paper describes an integrated experimental and numerical analysis approach to study the impact of an explosive-filled fragmenting shell into spaced plates. Although the initial impact velocity of the fragmenting shell into the first plate is around 1 km/s, the free-flight velocity of the fragment may become up to 2 km/s. For the first set of experiment impacting into spaced steel plates, the second compartment steel plate was perforated by the fragments and three holes were observed. A separate experiment was carried out with the support of S2-glass composite plate to the second plate. In this case, the second plate was able to capture the fragments. To acquire better understanding of the fragmenting shell impact into spaced plates, computational efforts were undertaken using both SPH and Lagrangian techniques with the support of the experimental data.