In The Heat Under The Action Of The Metal Shell Of Explosives Thermal Initiation Mechanism Research

The problem of the transient heating process of the metallic plate under acetylene burning was simulated by using the program of the finite element method . Temperature distributing in the metallic plate was calculated by different methods . The results of different methods were analyzed and compared with experiment results. Through these comparisions , the best method was found to simulated the temperature distributing on the metallic plate.The progress of heat transfer in explosive was calculated . Through calculating , the time of thermal initiation of explosive was obtained. The phenomenon of experiment was explained well through the calculating of the heat transfer in explosive.