Analyses on the effect of hot spot density on material consumption rate

[摘要] There is an observed effect of an explosive's constituent grain size and density on its performance. At the mesoscale, it is the outward burning of hot spots that controls observed performance. While statistical hot spot models can integrate the mesoscale behaviour to macroscale simulations, it is unknown what the density of created hot spots is as a function of grain size and porosity. Simulating mesoscale hot spot distributions and varying hot spot density, we discuss the resultant performance as influenced by inter-pore distance and pore distribution.

[发布机构] Physical and Life Sciences, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore; CA; 94550, United States^1

[关键词] Grain size;Hot spot;Hot-spot model;Macro scale;Material consumption;Mesoscale;Pore distribution