Research of Optimum Explosion Interruption Parameters of Tandem Warhead

To improve the penetration ability of shaped charge warhead(SCW),a sequential initiation tandem warhead was designed.Shock wave Hugoniot relationship was used for calculating the process of the front charge blast shock wave attenuation in the composite structure explosion interrupter.It was confirmed that the distance between forward and backward charge was 2times the diameter of charge.The calculation model of delay initiation time was established to obtain the optimum delay initiation time,and the calculation results were validated through X-ray imaging and penetration steel target experiments.The results show that the optimum delay initiation time was 85μs,and the backward charge can overcome the forward detonation and form effective jet.The penetration depth can achieve 80%of normal jet,and the armor penetrating power of tandem SCW satisfies the requirement of increasing penetration depth.