Study on jet formation and penetration behaviour of shaped charge with reactive material composite liner

The shaped charge with reactive material composite liner could not only meet the requirement of the after-effect damage behavior, but also achieve a deeper penetration capability. Based on the platform of AUTODYN-2D code, the jet formation characteristics of the reactive material-titanium liner shaped charge and its penetration behavior to multi-spaced plates were studied. Numerical simulations showed that with increasing of the detonation pressure of explosive, the tip velocity of the composite jet and its penetration capability increased, but the reactive material liner was subjected to the higher pressure and the temperature rise within the elements was larger. In addition, the influence of the standoff and the protective steel block thickness on the penetration behavior of the reactive composite jet was investigated. As the standoff increases from 0.5 CD to 3.0 CD, the penetration capacity of the composite jet increased, but the mass of reactive materials follow-in the spaced plates decreased. With increasing of the steel block thickness, the penetration capability of the reactive material-titanium jet and reactive material follow-in behavior decreased gradually.