Equation of state of detonation products for TNT by aquarium experiment

摘要

In order to study of thermodynamic state of explosive products by aquarium experiment, the underwater explosion test of TNT is carried out, obtaining the radial propagation trajectories of shock waves and the evolution law of interfaces between detonation products (DP) and water by high speed rotating camera. The parameters of Jones-Wikins-Lee (JWL) equation of state (EOS) are calculated by thermodynamic program, and underwater explosion is simulated by dynamics software. The comparison between the results of calculation and experiment shows that, the track of water shock wave in radial can well describe the detonation product state of explosive, and the trace of interfaces between detonation products and water in radial can reflect the thermodynamic state of DP.