A melt-cast Duan-Zhang-Kim mesoscopic reaction rate model and experiment for shock initiation of melt-cast explosives
Shurui Li, Zhuoping Duan, Liansheng Zhang, Zhuo-Cheng Ou, Fenglei Huang
Abstract
A melt-cast Duan-Zhang-Kim (DZK) mesoscopic reaction rate model is developed for the shock initiation of melt-cast explosives based on the pore collapse hot-spot ignition mechanism. A series of shock initiation experiments was performed for the Comp B melt-cast explosive to estimate effects of the loading pressure and the particle size of granular explosive component, and the mesoscopic model is validated against the experimental data. Further numerical simulations indicate that the initial density and formula proportion greatly affect the hot-spot ignition of melt-cast explosives.
Topics & Concepts
Explosive materialMesoscopic physicsMaterials scienceShock (circulatory)Ignition systemHot spot (computer programming)Composite materialMetallurgyThermodynamicsChemistryPhysicsCondensed matter physicsComputer scienceMedicineOperating systemOrganic chemistryInternal medicineEnergetic Materials and CombustionCombustion and Detonation ProcessesHigh-Velocity Impact and Material Behavior