To verify the energy matching characteristics between DNAN-based melt-cast composition explosive and shell of blast warhead, the air blast shock wave parameters and propagation regularity of DNAN-based explosive with big charging size and shell were acquired, by the theoretical calculation and the static explosion experiment. The characteristics parameter of explosion fireball was measured by high-speed photography, and contrasted with those of TNT sample. The results show that the calculated value is close to the test value of peak pressures of shock wave with shell. Incident shock wave and Mach reflection wave overpressure of DNAN-based sample are increased by 92% and 68.4% at 2.5m/kg 1/3 , impulse is increased 5.1%, air explosion powerΔp·I is increased 77%. The advantage of damage effect mainly shows in the near field. The luminance, diameter and area, as well as duration time of explosion fireball of DYAN-based sample are much better than those of TNT sample.
Initiators & Pyrotechnics