Effect of Near-Field Overpressure Enhancement of Reactive Material on Low Collateral Damage Ammunition

YANG Bingyan; FAN Ruijun; JIANG Zisheng; PI Aiguo; WANG Jinying

doi:10.11858/gywlxb.20220568

Volume 36 Issue 6

Dec 2022

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Chinese Journal of High Pressure Physics > 2022 > 36(6): 065101.

YANG Bingyan, FAN Ruijun, JIANG Zisheng, PI Aiguo, WANG Jinying. Effect of Near-Field Overpressure Enhancement of Reactive Material on Low Collateral Damage Ammunition[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065101. doi: 10.11858/gywlxb.20220568

Citation:

YANG Bingyan, FAN Ruijun, JIANG Zisheng, PI Aiguo, WANG Jinying. Effect of Near-Field Overpressure Enhancement of Reactive Material on Low Collateral Damage Ammunition[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065101. doi: 10.11858/gywlxb.20220568

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Effect of Near-Field Overpressure Enhancement of Reactive Material on Low Collateral Damage Ammunition

doi: 10.11858/gywlxb.20220568

YANG Bingyan^1
,,
FAN Ruijun¹,
JIANG Zisheng²,
PI Aiguo^{1,*
,
,},
WANG Jinying^{3,*
,
,}

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2.
Jiangnan Industry Group Co., Ltd., Xiangtan 411207, Hunan, China
3.
School of Environment and Safety Engineering, North University of China, Taiyuan 030051, Shanxi, China

Received Date: 20 Apr 2022
Rev Recd Date: 19 May 2022
Accepted Date: 15 Aug 2022

Available Online: 04 Nov 2022

Issue Publish Date: 05 Dec 2022

Abstract

Abstract

To realize the effect of the near-field shock wave enhancement of low collateral damage ammunition, this study proposes to add reactive material into the embedding layer of heavy metal particle in the sub-package low collateral damage ammunition to enhance the near-field overpressure and specific impulse. Static explosion experiments with different contents of reactive material were carried out, and the pressure curves of the near field and the mid-far field shock wave after the explosion were measured by the free field pressure test system. The results show that: after adding a certain content of reactive material into the heavy metal particle intercalation, the peak value of the overpressure and the specific impulse of shock wave at 37.5 times charge diameter are increased by 31.6% and 21.3%, respectively. According to the experimental results, the parameters of the Miller reaction rate model were determined by numerical simulation, and the law of energy release after-combustion reaction of the active element and the time-dependent change of the reactivity of the reactive material components were discussed. The duration of the secondary combustion can reach 300 ms under the ideal situation of sufficient combustion, and an optimal proportion of the range of reactive material content is likely exist. This research provides considerable development direction and application prospects for the regional enhancement effect of near-field shock wave and its engineering design of sub-packaged low collateral damage weapons.
- reactive material,
- heavy metal particle embedded,
- shock wave overpressure,
- damage effect

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References(23)

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Effect of Near-Field Overpressure Enhancement of Reactive Material on Low Collateral Damage Ammunition

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