Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction
Taking CL-20 (Hexanitrohexaazaisowurtzitane)-based aluminized explosives with high gurney energy as the research object, this research experimentally investigates the work capability of different aluminized explosive formulations when driving metal flyer plates in the denotation wave propagation dir...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-02-01
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| Series: | Defence Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914723001277 |
| _version_ | 1827325535478349824 |
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| author | Hongfu Wang Yan Liu Fan Bai Chao He Yingliang Xu Qiang Zhou Chuan Xiao Fenglei Huang |
| author_facet | Hongfu Wang Yan Liu Fan Bai Chao He Yingliang Xu Qiang Zhou Chuan Xiao Fenglei Huang |
| author_sort | Hongfu Wang |
| collection | DOAJ |
| description | Taking CL-20 (Hexanitrohexaazaisowurtzitane)-based aluminized explosives with high gurney energy as the research object, this research experimentally investigates the work capability of different aluminized explosive formulations when driving metal flyer plates in the denotation wave propagation direction. The research results showed that the formulations with 43 μm aluminum (Al) powder particles (The particle sizes of Al powder were in the range of 2∼43 μm) exhibited the optimal performance in driving flyer plates along the denotation wave propagation direction. Compared to the formulations with Al powder 13 μm, the formulations with Al powder 2 μm delivered better performance in accelerating metal flyer plates in the early stage, which, however, turned to be poor in the later stage. The CL-20-based explosives containing 25% Al far under-performed those containing 15% Al. Based on the proposed quasi-isentropic hypothesis, relevant isentropy theories, and the functional relationship between detonation parameters and entropy as well as Al reaction degree, the characteristic lines of aluminized explosives in accelerating flyer plates were theoretically studied, a quasi-isentropic theoretical model for the aluminized explosive driving the flyer plate was built and the calculation methods for the variations of flyer plate velocity, Al reaction degree, and detonation product parameters with time and axial positions were developed. The theoretical model built is verified by the experimental results of the CL-20-based aluminized explosive driving flyer plate. It was found that the model built could accurately calculate the variations of flyer plate velocity and Al reaction degree over time. In addition, how physical parameters including detonation product pressure and temperature varied with time and axial positions was identified. The action time of the positive pressure after the detonation of aluminized explosives was found prolonged and the downtrend of the temperature was slowed down and even reversed to a slight rise due to the aftereffect reaction between the Al powder and the detonation products. |
| first_indexed | 2024-03-07T14:29:38Z |
| format | Article |
| id | doaj.art-fd97a9816af244769527c451c06acfbf |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-03-07T14:29:38Z |
| publishDate | 2024-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-fd97a9816af244769527c451c06acfbf2024-03-06T05:27:01ZengKeAi Communications Co., Ltd.Defence Technology2214-91472024-02-0132596618Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation directionHongfu Wang0Yan Liu1Fan Bai2Chao He3Yingliang Xu4Qiang Zhou5Chuan Xiao6Fenglei Huang7State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; China Research and Development Academy of Machinery Equipment, Beijing, 100089, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; Beijing Institute of Technology Chongqing Innovation Center, Chongqing, 401120, China; Corresponding author. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; Corresponding author.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaChina Research and Development Academy of Machinery Equipment, Beijing, 100089, ChinaChina Research and Development Academy of Machinery Equipment, Beijing, 100089, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaTaking CL-20 (Hexanitrohexaazaisowurtzitane)-based aluminized explosives with high gurney energy as the research object, this research experimentally investigates the work capability of different aluminized explosive formulations when driving metal flyer plates in the denotation wave propagation direction. The research results showed that the formulations with 43 μm aluminum (Al) powder particles (The particle sizes of Al powder were in the range of 2∼43 μm) exhibited the optimal performance in driving flyer plates along the denotation wave propagation direction. Compared to the formulations with Al powder 13 μm, the formulations with Al powder 2 μm delivered better performance in accelerating metal flyer plates in the early stage, which, however, turned to be poor in the later stage. The CL-20-based explosives containing 25% Al far under-performed those containing 15% Al. Based on the proposed quasi-isentropic hypothesis, relevant isentropy theories, and the functional relationship between detonation parameters and entropy as well as Al reaction degree, the characteristic lines of aluminized explosives in accelerating flyer plates were theoretically studied, a quasi-isentropic theoretical model for the aluminized explosive driving the flyer plate was built and the calculation methods for the variations of flyer plate velocity, Al reaction degree, and detonation product parameters with time and axial positions were developed. The theoretical model built is verified by the experimental results of the CL-20-based aluminized explosive driving flyer plate. It was found that the model built could accurately calculate the variations of flyer plate velocity and Al reaction degree over time. In addition, how physical parameters including detonation product pressure and temperature varied with time and axial positions was identified. The action time of the positive pressure after the detonation of aluminized explosives was found prolonged and the downtrend of the temperature was slowed down and even reversed to a slight rise due to the aftereffect reaction between the Al powder and the detonation products.http://www.sciencedirect.com/science/article/pii/S2214914723001277Aluminized explosiveFlyer plate experimentQuasi-isentropic theoretical modelAl reactionDriving characteristics |
| spellingShingle | Hongfu Wang Yan Liu Fan Bai Chao He Yingliang Xu Qiang Zhou Chuan Xiao Fenglei Huang Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction Defence Technology Aluminized explosive Flyer plate experiment Quasi-isentropic theoretical model Al reaction Driving characteristics |
| title | Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction |
| title_full | Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction |
| title_fullStr | Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction |
| title_full_unstemmed | Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction |
| title_short | Research on the quasi-isentropic driving model of aluminized explosives in the detonation wave propagation direction |
| title_sort | research on the quasi isentropic driving model of aluminized explosives in the detonation wave propagation direction |
| topic | Aluminized explosive Flyer plate experiment Quasi-isentropic theoretical model Al reaction Driving characteristics |
| url | http://www.sciencedirect.com/science/article/pii/S2214914723001277 |
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