A Model of Antifratricide Shield Interaction with Jets Formed by Multiple Artillery Round Detonations
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
Pagination or Media Count:
This report presents a theoretical model of certain influence attenuation effects involved in round to round detonation propagation. The purpose of the model is to provide guidance in the design of structures to safely store and transport HE filled munitions. Such structures employing isolation panels or shields between artillery shells or groups of artillery shells are to prevent the propagation of detonations in the event that one or several shells are detonated by other means. The most severe effect to be shielded against is the metal jetting produced when neighboring shells are simultaneously detonated. The present report deals with the interaction that occurs between such metal jets and multi-layered shields composed of inert materials, explosive layers, or semiactive hydratedmaterials that derive their energy from the kinetic energy of the impacting metal jet and shell casing fragments. The study finds that the model correctly reproduces most features found in experiments with isolation panels, that present semiactive materials such as gypsum show only minor enhancement of shield performance, and that the use of proper positioning of panels and distribution of shield material is a significant parameter for the design of such structures.
- Ammunition and Explosives