Experimental Study on Sensitivity of Cyclotetramethylenetetranitramine and Cyclotrimethylenetrinitramine Explosives under Wide Range Temperature

The drop-weight impact sensitivity tests are carried out at room temperature generally, unable to obtain the impact sensitivity of explosives at wide range temperatures. In order to investigate the sensitivity of Cyclotetramethylenete-tranitramine (HMX) and Cyclotrimethylenetrinitramine (RDX) explosives under wide range temperatures, two kinds of drop-weight equipments suitable for low and high temperature are designed. Research focused on the sensitivity of HMX/RDX explosive at a wide range temperature from ‒125 to 100°C under drop weight impact. The results show that the H 50 of HMX/RDX powder explosive decrease with the increase of ambient temperature at high temperature, but the H 50 of HMX powder explosive decrease with the decrease of ambient temperature at low temperature.