Abstract
The objective is to match the penetration capability of dual-mode penetrator. Finite element software LS-DYNA is used to acquire four types of dual-mode penetrators EFP (Explosively Formed Projectile) and JPC (Jetting Projectile Charge). Considering the process of dual-mode penetrator flight and penetration, including the effects of velocity attenuation for stand-off and length change of EFP & JPC, also the differences between mechanisms of EFP into armor steel and JPC into concrete, an analytical model for predicting the final penetration of dual-mode penetrator is presented. We use the analytic model, to estimate the penetration of dissimilar modes and then a series of field tests are provided to demonstrate the reliability of the approach. Moreover, in application of the analytic method, along with the penetration restrictions of different modes, the work in this paper describes the optimal matching zone and extreme points of penetration capability of dual-mode penetrator.
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