18th APS-SCCM; 24th AIRAPT | |
Reactive atomistic simulations of shock-induced initiation processes in mixtures of ammonium nitrate and fuel oil | |
Thompson, Aidan P.^1 ; Shan, Tzu-Ray^1 | |
Sandia National Laboratories, Albuquerque | |
NM | |
87185, United States^1 | |
关键词: Ammonium nitrate; Atomistic simulations; Blasting agents; Enhanced reactivity; Initiation process; Interface regions; Shock compressions; Shock properties; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/500/5/052046/pdf DOI : 10.1088/1742-6596/500/5/052046 |
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来源: IOP | |
【 摘 要 】
Ammonium nitrate mixed with fuel oil (ANFO) is a commonly used blasting agent. In this paper we investigated the shock properties of pure ammonium nitrate (AN) and two different mixtures of ammonium nitrate and n-dodecane by characterizing their Hugoniot states. We simulated shock compression of pure AN and ANFO mixtures using the Multi-scale Shock Technique, and observed differences in chemical reaction. We also performed a large-scale explicit sub-threshold shock of AN crystal with a 10 nm void filled with 4.4 wt% of n-dodecane. We observed the formation of hotspots and enhanced reactivity at the interface region between AN and n-dodecane molecules.
【 预 览 】
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Reactive atomistic simulations of shock-induced initiation processes in mixtures of ammonium nitrate and fuel oil | 16735KB | download |