Study on the overdriven detonation wave propagation in double-layer shaped charge

2019 ◽  
Vol 31 (9) ◽  
pp. 092110 ◽  
Keyword(s):  
Wave Propagation ◽  
Detonation Wave ◽  
Double Layer ◽  
Shaped Charge ◽  
Overdriven Detonation ◽  
Detonation Wave Propagation

scholarly journals The EFP Formation and Penetration Capability of Double-Layer Shaped Charge with Wave Shaper

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4519
Author(s):  
Yakun Liu ◽  
Jianping Yin ◽  
Zhijun Wang ◽  
Xuepeng Zhang ◽  
Guangjian Bi
Keyword(s):  
Detonation Wave ◽  
Double Layer ◽  
Detonation Velocity ◽  
Incidence Angle ◽  
Shaped Charge ◽  
Experimental Simulation ◽  
Detonation Waves ◽  
Forming Process ◽  
Large Length ◽  
Overdriven Detonation

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.

Nonlinear dynamics of pulsating detonation wave with two-stage chemical kinetics in the shock-attached frame

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yaroslava E. Poroshyna ◽  
Aleksander I. Lopato ◽  
Pavel S. Utkin
Keyword(s):  
Wave Propagation ◽  
Detonation Wave ◽  
Model Comparison ◽  
Approximation Order ◽  
Transition Regime ◽  
Stage Model ◽  
Two Stage ◽  
One Dimensional ◽  
Kinetics Of ◽  
Detonation Wave Propagation

Abstract The paper contributes to the clarification of the mechanism of one-dimensional pulsating detonation wave propagation for the transition regime with two-scale pulsations. For this purpose, a novel numerical algorithm has been developed for the numerical investigation of the gaseous pulsating detonation wave using the two-stage model of kinetics of chemical reactions in the shock-attached frame. The influence of grid resolution, approximation order and the type of rear boundary conditions on the solution has been studied for four main regimes of detonation wave propagation for this model. Comparison of dynamics of pulsations with results of other authors has been carried out.

scholarly journals Numerical study of detonation wave propagation modes in annular channels

AIP Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 085203
Author(s):  
Duo Zhang ◽  
Xueqiang Yuan ◽  
Shijie Liu ◽  
Xiaodong Cai ◽  
Haoyang Peng ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Detonation Wave ◽  
Numerical Study ◽  
Annular Channels ◽  
Detonation Wave Propagation

scholarly journals Retraction: Study on Overdriven Detonation of Double‐Layer Shaped Charge

2021 ◽  
Vol 46 (4) ◽  
pp. 679-679
Author(s):  
Yakun Liu ◽  
Jianping Yin ◽  
Zhijun Wang
Keyword(s):  
Double Layer ◽  
Shaped Charge ◽  
Overdriven Detonation

scholarly journals The detonation wave propagation modeling in a cylindrical channel

2018 ◽  
pp. 1-14
Author(s):  
Ekaterina Alekseevna Zabrodina ◽  
Yurii Nikolaevich Orlov ◽  
Viktor Olegovich Soloviev
Keyword(s):  
Wave Propagation ◽  
Detonation Wave ◽  
Cylindrical Channel ◽  
Propagation Modeling ◽  
Wave Propagation Modeling ◽  
Detonation Wave Propagation

Mechanism of low-speed detonation wave propagation in gas-drop mixtures

1993 ◽  
Vol 29 (3) ◽  
pp. 395-399
Author(s):  
V. M. Boiko ◽  
V. V. Lotov ◽  
A. N. Papyrin
Keyword(s):  
Wave Propagation ◽  
Detonation Wave ◽  
Low Speed ◽  
Detonation Wave Propagation
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