Numerical simulation and experiments of series EFP forming and penetration

The formation of explosively-formed projectile (EFP) with single material layer liner and composite series material layers liner are developed with both experiments and numerical simulation. The photograph of flash X-ray for typical status of EFP and effect of penetration of a steel target are achieved, which provide an important reference for computational validation. The analysis of penetration results with three different structural schemes indicate that EFP formed by composite liner in series has obvious advantages in armor penetrating than single EFP; and better terminal effect in penetration depth are obtained with steel-copper composite multi-liner rather than steel-steel double liner.