The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave Shaper
Detonation waves will bypass a wave shaper and propagate in the form of a horn wave in shaped charge. Horn waves can reduce the incidence angle of a detonation wave on a liner surface and collide with each other at the charge axis to form overdriven detonation. Detection electronic components of sma...
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doaj-5926ca938f4b4218984b56147d5885212020-11-25T02:26:16ZengMDPI AGMaterials1996-19442020-10-01134519451910.3390/ma13204519The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave ShaperYakun Liu0Jianping Yin1Zhijun Wang2Xuepeng Zhang3Guangjian Bi4School of Mechatronic Engineering, North University of China, Taiyuan 030051, ChinaSchool of Mechatronic Engineering, North University of China, Taiyuan 030051, ChinaSchool of Mechatronic Engineering, North University of China, Taiyuan 030051, ChinaSchool of Mechatronic Engineering, North University of China, Taiyuan 030051, ChinaSchool of Mechatronic Engineering, North University of China, Taiyuan 030051, ChinaDetonation waves will bypass a wave shaper and propagate in the form of a horn wave in shaped charge. Horn waves can reduce the incidence angle of a detonation wave on a liner surface and collide with each other at the charge axis to form overdriven detonation. Detection electronic components of small-caliber terminal sensitive projectile that are limited by space are often placed inside a wave shaper, which will cause the wave shaper to no longer be uniform and dense, and weaken the ability to adjust detonation waves. In this article, we design a double-layer shaped charge (DLSC) with a high-detonation-velocity explosive in the outer layer and low-detonation-velocity explosive in the inner layer. Numerical and experimental simulation are combined to compare and analyze the forming process and penetration performance of explosively formed projectile (EFP) in DLSC and ordinary shaped charge (OSC). The results show that, compared with OSC, DLSC can also adjust and optimize the shape of the detonation wave when the wave shaper performance is poor. DLSC can obtain long rod EFPs with a large length-diameter ratio, which greatly improves the penetration performance of EFP.https://www.mdpi.com/1996-1944/13/20/4519wave shaperdouble-layer shaped chargeexplosively formed projectileoverdriven detonationpenetration |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yakun Liu Jianping Yin Zhijun Wang Xuepeng Zhang Guangjian Bi |
spellingShingle |
Yakun Liu Jianping Yin Zhijun Wang Xuepeng Zhang Guangjian Bi The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave Shaper Materials wave shaper double-layer shaped charge explosively formed projectile overdriven detonation penetration |
author_facet |
Yakun Liu Jianping Yin Zhijun Wang Xuepeng Zhang Guangjian Bi |
author_sort |
Yakun Liu |
title |
The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave Shaper |
title_short |
The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave Shaper |
title_full |
The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave Shaper |
title_fullStr |
The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave Shaper |
title_full_unstemmed |
The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave Shaper |
title_sort |
efp formation and penetration capability of double-layer shaped charge with wave shaper |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2020-10-01 |
description |
Detonation waves will bypass a wave shaper and propagate in the form of a horn wave in shaped charge. Horn waves can reduce the incidence angle of a detonation wave on a liner surface and collide with each other at the charge axis to form overdriven detonation. Detection electronic components of small-caliber terminal sensitive projectile that are limited by space are often placed inside a wave shaper, which will cause the wave shaper to no longer be uniform and dense, and weaken the ability to adjust detonation waves. In this article, we design a double-layer shaped charge (DLSC) with a high-detonation-velocity explosive in the outer layer and low-detonation-velocity explosive in the inner layer. Numerical and experimental simulation are combined to compare and analyze the forming process and penetration performance of explosively formed projectile (EFP) in DLSC and ordinary shaped charge (OSC). The results show that, compared with OSC, DLSC can also adjust and optimize the shape of the detonation wave when the wave shaper performance is poor. DLSC can obtain long rod EFPs with a large length-diameter ratio, which greatly improves the penetration performance of EFP. |
topic |
wave shaper double-layer shaped charge explosively formed projectile overdriven detonation penetration |
url |
https://www.mdpi.com/1996-1944/13/20/4519 |
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