Modeling and simulation of preshock desensitization in heterogeneous explosives using a mesoscopic reaction rate model

摘要: To understand and predict the response of explosive materials, numerical models are utilized to simulate various scenarios. Various hazard vulnerability scenarios for explosives involve multiple shock compression. In present study, a kind mesoscopic model ignition solid heterogeneous is examined in order demonstrate its availability account desensitization caused by shocks explosives. Since based on assumption elastic viscoplastic pore collapse mechanism, other hand mechanism also usually described connection with closure pores, ability effects must be analyzed. For this purpose, has been implemented hydrodynamic code LS-DYNA as user-defined equation state. verification, double shock, reflected detonation-quenching experiments have modeled simulated. The data show that can reproduce features some previously reported involving preshock