Study on ultra-high speed photoelectric framing photography of the multi-point initiation of explosive

被引：0

作者：

Chang L. ^{[1
]}

Wen W. ^{[1
]}

Ran M. ^{[1
]}

Huang W. ^{[1
]}

Wang X. ^{[1
]}

He H. ^{[1
]}

Gao P. ^{[1
]}

机构：

[1] Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang

来源：

Baozha Yu Chongji/Explosion and Shock Waves | 2022年 / 42卷 / 04期

关键词：

Detonation wave; Multi-point initiation; Photoelectric framing camera; Plastic bonded explosive; Ultra-high speed photography;

D O I：

10.11883/bzycj-2021-0201

中图分类号：

学科分类号：

摘要：

In order to obtain the propagation process of detonation wave by multi-point initiation of explosive, a suitable ultra-high speed photoelectric framing photography technique was studied. A self-developed ultra-high speed photoelectric framing camera with an exposure time of 5 ns, spatial resolution of 40 lp/mm and photographic frequency of 200 MHz combined with plexiglass optical shutter technology was adopted. We obtained eight high-resolution detonation wave images of plastic bonded explosives based on HMX and TATB under the condition of three-point synchronous initiation. The whole process of the detonation wave propagation and interaction was captured successfully, and the details of the coherent interaction and the Mach Rod were observed. The experimental results show that the ultra-high speed photoelectric framing photography based on the independent exposure mode have the advantages of short exposure time, continuous adjustable image interval and high spatial resolution, and the propagation and interaction of the detonation wave can be observed in great detail. The experimental method and results provide a valuable reference for the study of the interaction and Mach reflection of the detonation waves. © 2022, Editorial Staff of EXPLOSION AND SHOCK WAVES. All right reserved.

引用

共 9 条

[1] pp. 400-404, (2011)
[2] HUANG W B, WEN S G, TAN D W, Et al., Experimental study on shock initiation process of JB-9014 under loading conditions of divergent spherical shock wave, Explosion and Shock Waves, 26, 4, pp. 373-376, (2006)
[3] COPE P., US navy overview [C], Associate Depc. Head for Energetics. NDIA'S 53rd Annual Fuze Conference, (2009)
[4] (1990)
[5] (1992)
[6] WEN S G, ZHAO F, SUN C W., Experimental studies on the Multi-Point Initiation of the insensitive explosive JB9014, Chinese Journal of High Pressure Physics, 17, 3, pp. 193-198, (2003)
[7] CHANG L H, HE H, WEN W F, Et al., Ultrahigh-speed simultaneous framing and streak photography of magnetic flux compression by explosive cylindrical implosion, High Power Laser and Particle Beams, 27, 11, (2015)
[8] CHANG L H, HE H, WEN W F, Et al., Study of underwater-explosion shock wave using ultrahigh-speed simultaneous framing and streak photography technology, Explosion and Shock Waves, 38, 2, pp. 437-442, (2018)
[9] WEN S G, ZHAO F, SUN C W, Et al., Multi-points initiation experiment studies with a SVR camera, Explosion and Shock Waves, 21, 3, pp. 233-236, (2001)

← 1 →