Multimode Shaped Charge Liner Structural Design

Multimode warhead can choose different penetrators to suit different battlefields. Such as Explosively Formed Penetrator(EFP),Jet and Jetting Penetrator Charge(JPC).In order to meet the requirement of each target in the battlefields with the same ammunition, researching multimode shaped charge has been one of the important issue in the field of the shaped charge.This paper studied the matching relations between configuration parameters of hemispherical liner and multimode penetrators,which is one of the key technology of multimode shaped charge.Depending on researching the shaped charge theories and the formed conditions of multimode penetrators, the formation course of multimode penetrators is investigated by means of numerical imitation,the change law curves of configuration parameters of hypo-caliber hemispherical liner and multimode penetrators was gained.The structure model of multimode shaped charge was founded,choosing numerical simulation project of curvature radius and thickness of hemispherical liner and analyzing the result, the range of configuration parameters of hemispherical liner to form preferable EFP and JPC penetrators was received by three-dimensional chart analysis with matlab,when curvature radius of liner was 0.7～0.9 times charge caliber, thickness of liner was 0.40～0.56 times charge caliber,the formation of multimode penetrators was accorded with the trial item desire.Finally,the experiment of forming multimode penetrators is carried out,which checked out theorical reserach and numerical imitation.By comparing the simulation and trial, both results are in good agreement, which provided reference for the more design of multimode warhead.