Using PVDF Gauge to Study Grüneisen Parameter of Unreacted JB-9014 Insensitive Explosive

LIU Junming; ZHANG Xu; ZHAO Kang; QIN Shuang; PEI Hongbo; ZHANG Rong

doi:10.11858/gywlxb.20180524

Volume 32 Issue 5

Aug 2018

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Chinese Journal of High Pressure Physics > 2018 > 32(5): 051301.

LIU Junming, ZHANG Xu, ZHAO Kang, QIN Shuang, PEI Hongbo, ZHANG Rong. Using PVDF Gauge to Study Grüneisen Parameter of Unreacted JB-9014 Insensitive Explosive[J]. Chinese Journal of High Pressure Physics, 2018, 32(5): 051301. doi: 10.11858/gywlxb.20180524

Citation:

LIU Junming, ZHANG Xu, ZHAO Kang, QIN Shuang, PEI Hongbo, ZHANG Rong. Using PVDF Gauge to Study Grüneisen Parameter of Unreacted JB-9014 Insensitive Explosive[J]. Chinese Journal of High Pressure Physics, 2018, 32(5): 051301. doi: 10.11858/gywlxb.20180524

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Using PVDF Gauge to Study Grüneisen Parameter of Unreacted JB-9014 Insensitive Explosive

doi: 10.11858/gywlxb.20180524

1.
The Graduate School of CAEP, Mianyang 621999, China
2.
Institute of Fluid Physics, CAEP, Mianyang 621999, China

Received Date: 12 Mar 2018
Rev Recd Date: 23 Mar 2018

Abstract

Abstract

In order to obtain the Grüneisen parameter Γ of unreacted JB-9014 insensitive explosive, we carried out the one-dimensional plane impact experiment on JB-9014 explosive using a gun.In the experiment, the explosive sample was mounted between two copper plates, and two PVDF gauges were installed at the front and the middle of the explosive sample to record the variations of pressure versus time.The copper flyer was accelerated by a gun and then impacted the front copper plate at a certain speed.The right row shock wave was formed in the front copper plate, resulting in the first compression of the explosive sample and then reflected at the interface of the explosive sample and the rear copper plate, causing the second compression of the explosive sample.Supposing the Grüneisen parameter of the explosive sample was constant, we calculated the variations of pressure versus time at the front and the middle of the explosive sample with different Grüneisen parameters.Comparing these calculated values with the experimentally determined parameters enabled optimum values of the Grüneisen parameter to be identified.
- JB-9014 explosive,
- PVDF gauge,
- Grüneisen parameter,
- optimum value

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References(28)

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Using PVDF Gauge to Study Grüneisen Parameter of Unreacted JB-9014 Insensitive Explosive

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