浇注CL-20基混合炸药的高速破片撞击安全性

To improve the application performance of CL-20 in mixed explosive, the safety of CL-20-based explosives under high-velocity fragment impact was studied. A cast CL-20-based explosive, named GW, with a mass ratio of 87 : 13 for CL-20 and HTPB was prepared and the reaction safety levels of this explosive were obtained by static explosion test and high-velocity fragment impact test. By analyzing and comparing the overpressure data, images,and the damage of the witness plate under the static explosion test and high-velocity fragment impact test,the reaction levels of GW samples were generally judged, and the effect of the velocity and mass of the fragment on the impact safety was obtained. The results of the static explosion test showed that the GW explosives have a good ability to drive fragments. The measured velocity of the fragment was 1 435 m/s, and the average overpressure at 4 m was 0.09 MPa. The results of the high velocity fragment impact test showed that under the impact of a fragment with a mass of 16 g, GW burned and showed good safety, but under the impact of a fragment with a velocity of 1 412m/s and a mass of 16g,GW detonated, which proved that GW had more violence under the impact of fragments with higher velocity and larger mass.