A melt-cast Duan-Zhang-Kim mesoscopic reaction rate model and experiment for shock initiation of melt-cast explosives |
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| Authors: | Shu-rui Li Zhuo-ping Duan Lian-sheng Zhang Zhuo-cheng Ou Feng-lei Huang |
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| Institution: | State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing,100081,China |
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| 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. |
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| Keywords: | Melt-cast explosive Shock initiation Mesoscopic reaction rate model Hot-spot ignition Shock sensitivity |
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