Experimental research on effects of porosity on shock initiation of PBX explosive

LIU Haiqing; DUAN Zhuoping; BAI Zhiling; WEN Lijing; OU Zhuocheng; HUANG Fenglei

doi:10.11883/bzycj-2018-0226

Volume 39 Issue 7

Jul. 2019

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LIU Haiqing, DUAN Zhuoping, BAI Zhiling, WEN Lijing, OU Zhuocheng, HUANG Fenglei. Experimental research on effects of porosity on shock initiation of PBX explosive[J]. Explosion And Shock Waves, 2019, 39(7): 072302. doi: 10.11883/bzycj-2018-0226

Citation:

LIU Haiqing, DUAN Zhuoping, BAI Zhiling, WEN Lijing, OU Zhuocheng, HUANG Fenglei. Experimental research on effects of porosity on shock initiation of PBX explosive[J]. Explosion And Shock Waves, 2019, 39(7): 072302. doi: 10.11883/bzycj-2018-0226

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Experimental research on effects of porosity on shock initiation of PBX explosive

doi: 10.11883/bzycj-2018-0226

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2.
Nuclear and Radiation Safety Center, Ministry of Environmental Protection, Beijing 100082, China

Received Date: 2018-06-25
Rev Recd Date: 2018-08-15
Publish Date: 2019-07-01

Abstract

Abstract

To investigate the influence of the porosity (charge density) on the shock initiation and detonation of polymer bonded explosives (PBXes), a one-dimensional Lagrangian experimental testing system is adopted to measure the pressure-time histories at different Lagrangian locations of PBXC03 (87% HMX, 7% TATB, 6% binder by weight) with three different porosities (or charge densities), in which, an explosive plane-wave lens is used to generate a high-pressure planar detonation wave loading, and the Manganin piezoresistive pressure gauge measurement technique and the attenuation technique by both air-gap and Al-gap are used. The experimental results show that the detonation grows the fastest in the explosive with a moderate porosity. This work provides more detailed experimental data for the further development of mesoscopic reaction rate models for shock initiation of heterogeneous explosives.
- shock initiation,
- PBX explosives,
- Lagrangian experiment testing system,
- porosity

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References(15)

References

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