Simulation research on front-rear distance influence of following warhead

To research the effect of the tandem warhead's front charge to following warhead and verify the feasibility of installing annular shaped charge in the front of active missile' s warhead,the annular cutter' s influence to following warhead is simulated by using ANSYS / LS-DYNA software.The histories of acceleration,velocity and the max stress of following warhead's shell,charge and their place was obtained in different velocities between front charge and following warhead.Simulation results show the shock wave of annular cutter affect following warhead's acceleration,velocity and pressure of shell and charge increase with the velocity increasing.The charge of following warhead is blasted in 600 m / s leading to tandem warhead losing its value.It can support the base for desing of tandem warhead's blast-proof to guarantee following warhead safety and reliable.