The Confinement Effect of Inert Materials on the Detonation of Insensitive High Explosives

摘要: The paper aims to theoretically and numerically investigate the confinement effect of inert materials on detonation insensitive high explosives. An improved shock polar theory based Zeldovich-von Neumann-Doring model explosive is established can fully categorize interactions between into six types for with smaller sonic velocities than Chapman-Jouguet velocity detonation. To confirm theoretical categorization obtain flow details, a second-order, cell-centered Lagrangian hydrodynamic method characteristic two-dimensional first-order hyperbolic partial differential equations Ignition-Growth chemistry reaction law proposed exactly simulate interactions. numerical result confirms further merge interaction styles five velocity, moreover, give new type style existing precursor wave in confining material larger detonation, which invalid. also edge angles front.