Numerical Simulation on Forming of Triple-Layer Tandem EFP

Influence of Initiation Diameter on Formation of Collinear EFP with Fins from Warhead with Double Layer Liners

“…The specific calculation model was shown in Figure 2. In the calculation model, the 8701 explosive was used, the density was 1.70 g/cm 3 , and the detonation velocity was 8315 m/s; The liner was made of red copper with a density of 8.96 g/cm 3 . The sliding penalty function algorithm was used between the explosive and the inner liner; Erosion contact was adopted between the inner and outer liner; An automatic single-sided contact was defined for a single liner to simulate the contact of its external surface after the liner was overturned so that penetration and deformation between grids could be effectively avoided.…”

“…The front EFP is used to detonate the explosive reactive armor, while the rear EFP continues to penetrate the main armor, thus effectively improving the damage efficiency to new armored targets. Therefore, it had become a hot spot in warhead technology research [1][2][3][4][5][6][7][8][9].…”

“…The specific calculation model was shown in Figure2. In the calculation model, the 8701 explosive was used, the density was 1.70 g/cm3 , and the detonation velocity was 8315 m/s; The liner was made of red copper with a density of 8.96 g/cm3 . The sliding penalty function algorithm was used between the explosive…”