Reactive jet density distribution effect on its penetration behavior
In this paper, the penetration mechanism of reactive jet with non-uniform density distribution is studied. The simulations show that the density deficit occurs in the whole reactive jet, and the density increases from the jet tip to tail. The density of jet tip is approximately 1.5 g/cm3, which is l...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-06-01
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| Series: | Defence Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914722000447 |
| _version_ | 1827917825910505472 |
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| author | Huan-guo Guo Cheng-hai Su Yi-qiang Cai Suo He Qing-bo Yu Haifu Wang |
| author_facet | Huan-guo Guo Cheng-hai Su Yi-qiang Cai Suo He Qing-bo Yu Haifu Wang |
| author_sort | Huan-guo Guo |
| collection | DOAJ |
| description | In this paper, the penetration mechanism of reactive jet with non-uniform density distribution is studied. The simulations show that the density deficit occurs in the whole reactive jet, and the density increases from the jet tip to tail. The density of jet tip is approximately 1.5 g/cm3, which is lower than that of the reactive liner materials. The X-ray experiments show similar results with the simulations. The density decreasing effect of jet tip has a significant influence on the penetration behavior when the reactive jet impacts steel plate. According to the simulation results, this paper assumes that the density gradient in the jet section has linear distribution. Then, the deflagration pressure generated by each jet element at the bottom of crater is introduced into the Bernoulli equation. Based on the virtual origin model and Szendrei-Held equation, the analytical models for penetration depth and radial cratering of reactive jet with the density reduction are obtained. Moreover, to further prove the validity of analytical models, the penetration experiments of the reactive liner shaped charge against steel plate under different standoffs are carried out. There is a convergence between the analytical crater profiles and experimental results when reactive jets penetrate steel plates under different standoffs, especially at standoff of 1.5 and 2.0 charge diameters. |
| first_indexed | 2024-03-13T03:33:59Z |
| format | Article |
| id | doaj.art-fa32a5112f554ab7a3068e2d08766ce4 |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-03-13T03:33:59Z |
| publishDate | 2023-06-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-fa32a5112f554ab7a3068e2d08766ce42023-06-24T05:16:37ZengKeAi Communications Co., Ltd.Defence Technology2214-91472023-06-0124190202Reactive jet density distribution effect on its penetration behaviorHuan-guo Guo0Cheng-hai Su1Yi-qiang Cai2Suo He3Qing-bo Yu4Haifu Wang5State 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, ChinaState 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, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaCorresponding author.; State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaIn this paper, the penetration mechanism of reactive jet with non-uniform density distribution is studied. The simulations show that the density deficit occurs in the whole reactive jet, and the density increases from the jet tip to tail. The density of jet tip is approximately 1.5 g/cm3, which is lower than that of the reactive liner materials. The X-ray experiments show similar results with the simulations. The density decreasing effect of jet tip has a significant influence on the penetration behavior when the reactive jet impacts steel plate. According to the simulation results, this paper assumes that the density gradient in the jet section has linear distribution. Then, the deflagration pressure generated by each jet element at the bottom of crater is introduced into the Bernoulli equation. Based on the virtual origin model and Szendrei-Held equation, the analytical models for penetration depth and radial cratering of reactive jet with the density reduction are obtained. Moreover, to further prove the validity of analytical models, the penetration experiments of the reactive liner shaped charge against steel plate under different standoffs are carried out. There is a convergence between the analytical crater profiles and experimental results when reactive jets penetrate steel plates under different standoffs, especially at standoff of 1.5 and 2.0 charge diameters.http://www.sciencedirect.com/science/article/pii/S2214914722000447Shaped chargeReactive jetDensity distributionJet penetrationVirtual origin |
| spellingShingle | Huan-guo Guo Cheng-hai Su Yi-qiang Cai Suo He Qing-bo Yu Haifu Wang Reactive jet density distribution effect on its penetration behavior Defence Technology Shaped charge Reactive jet Density distribution Jet penetration Virtual origin |
| title | Reactive jet density distribution effect on its penetration behavior |
| title_full | Reactive jet density distribution effect on its penetration behavior |
| title_fullStr | Reactive jet density distribution effect on its penetration behavior |
| title_full_unstemmed | Reactive jet density distribution effect on its penetration behavior |
| title_short | Reactive jet density distribution effect on its penetration behavior |
| title_sort | reactive jet density distribution effect on its penetration behavior |
| topic | Shaped charge Reactive jet Density distribution Jet penetration Virtual origin |
| url | http://www.sciencedirect.com/science/article/pii/S2214914722000447 |
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