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A Non-isentropic Model of Aluminized Explosives Involved with the Reaction Degree of Aluminum Powder for Post-detonation Burning Behavior by Xiaoxia Yuan; Cheng Wu; Fengjiang An; Shasha Liao; Mingxue Zhou; Zhenqing Shi; Dongyu Xue is a Engineering article available to read on EtoBox.
What is A Non-isentropic Model of Aluminized Explosives Involved with the Reaction Degree of Aluminum Powder for Post-detonation Burning Behavior about?
The post-detonation burning effect of aluminum (Al) powder plays an important role during the expansion of detonation products (DPs) of aluminized explosives (AEs). Lithium fluoride (LiF) is an inert substitute for Al, and hence, a comparison of the performance of composite explosives based on cyclotrimethylenetrinitramine (RDX), such as RDX/Al and RDX/LiF, clearly illustrates its contribution to accelerating ability due to Al oxidation. A series of metal plate tests is conducted to measure the velocity history of a metal plate driven by RDX/Al and RDX/LiF through a photonic Doppler velocimetry system with 5%, 15%, and 25% Al or LiF contents. The detonation and expansion process of the AEs is generally divided into two stages: the detonation zone (DZ) and the post-detonation zone (PDZ). In the DZ, the Al powder remains inert, while it absorbs the detonation energy from pure explosives. Therefore, the equivalent inert dilution model is established and the equivalent inert dilution coefficient of the Al powder is introduced. In the PDZ, the Al powder reacts with DPs, and the Al oxidation reaction results with a change in entropy related to the reaction degree of the Al powder. Based
Who reads A Non-isentropic Model of Aluminized Explosives Involved with the Reaction Degree of Aluminum Powder for Post-detonation Burning Behavior?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Xiaoxia Yuan; Cheng Wu; Fengjiang An; Shasha Liao; Mingxue Zhou; Zhenqing Shi; Dongyu Xue
- Publisher
- American Institute of Physics; AIP Publishing (ISSN 1070-6631)
- Published
- 2020
- Language
- EN
- Field
- Engineering (Physical Sciences)