Three-dimensional numerical simulations and experiments were performed to examine the formation and spatial dispersion patterns of integral multiple explosively formed penetrators (MEFP) warhead with seven hemispherical liners. Numerical results had successfully described the formation process and distribution pattern of MEFP. A group of penetrators consisting of a central penetrator surrounded by 6 penetrators is formed during the formation process of MEFP and moves in the direction of aiming position. The maximum divergence angle of the surrounding penetrator group was 7.8°, and the damage area could reach 0.16 m 2 at 1.2 m. The laws of perforation dispersion patterns of MEFP were also obtained through a nonlinear fitting of the perforation information on the target at different standoffs. The terminal effects of the MEFP warhead were performed on three #45 steel targets with a dimension of 160cm  160cm  1.5cm at various standoffs (60, 80, and 120 cm). The simulation results were validated through penetration experiments at different standoffs. It has shown excellent agreement between simulation and experiment results.

The law of influenced material of liner is researched by numerical simulation.Multiple explosively formed projectiles (MEFP) forming process is numerically simulated with different liner material,such as copper, aluminum, iron and so on.The law that the formation parameters of MEFP such as velocity, length-diameter ratio and radial dispersion angle,influenced by the density and ductility of liner material is educed.It reaches the conclusion that the velocity and radial dispersion angle of projectiles decreases 58% and 56% with the increasing density of the liner material; the length-diameter ratio of central projectile increases276%with the increasing ductility of the liner material, so in order to acquire good formation of MEFP parameters, the appropriate density and higher ductility should be chosen.