EFP Study of Elliptical Munition and Explosive Al Nano-powder Cloud Formation

"Two different EFP munition designs are presented both of which have an elliptical liner shape. One device consists of a high explosive, a elliptical metallic liner, casing and few other components. The liner is explosively driven to form into a centralprojectile with a variable radial cross-section dependent on the material, thickness and eccentricity of the liner. To our knowledge, no similar munition geometry has been designed for producing a high velocity self-forming projectile. Using thehydrocodes CTH and EPIC 2001, it is shown that the projectile velocity attained is may be slightly higher than that of other explosively formed kinetic energy penetrators. The cross section density and outer surface geometry of the projectile is comparedwith other EFPs. Predictions for oblique plate penetration by the central and lateral projectiles are discussed in the proposal, along with the feasibility for optimization of parameters to obtain a high-speed projectile. The proposal also discussesoptions for the weaponization of the munition. The other elliptical munition is designed to produce an explosive Al nano-powder cloud after target penetration to enhance the lethality in addition to the behind target debris effect. It is proposed that theeffectiveness of the munitions can be increased with further design studies using hydrocode computer modeling methodology. A high velocity projectile may be used to penetrate hard targets and defeat