The cook-off test of RDX-based PBX explosive was carried out.A cook-off model of explosive was established.Frank-Kamenetskii model,Sestak-Berggreen model and McGuire-Tarver model were added into this model.The numerical simulation was conducted by a CFD software Fluent.Results show that the ignition time is 176.0min,the sample center temperature is 185.2℃ and the shell surface temperature is 194.8℃ of the PBX explosive at a heating rate of 1K/min,and the calculated results by Sestak-Berggreen model show tha...