Measuring the detonation reaction zone structure ofJOB-9003 explosive using PDV

QIN Jincheng; PEI Hongbo; HUANG Wenbin; ZHANG Xu; ZHENG Xianxu; ZHAO Feng

doi:10.11883/bzycj-2018-0101

Volume 39 Issue 4

Mar. 2019

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QIN Jincheng, PEI Hongbo, HUANG Wenbin, ZHANG Xu, ZHENG Xianxu, ZHAO Feng. Measuring the detonation reaction zone structure ofJOB-9003 explosive using PDV[J]. Explosion And Shock Waves, 2019, 39(4): 041404. doi: 10.11883/bzycj-2018-0101

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QIN Jincheng, PEI Hongbo, HUANG Wenbin, ZHANG Xu, ZHENG Xianxu, ZHAO Feng. Measuring the detonation reaction zone structure ofJOB-9003 explosive using PDV[J]. Explosion And Shock Waves, 2019, 39(4): 041404. doi: 10.11883/bzycj-2018-0101

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Measuring the detonation reaction zone structure ofJOB-9003 explosive using PDV

doi: 10.11883/bzycj-2018-0101

Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2018-03-28
Rev Recd Date: 2018-06-22

Available Online: 2019-04-25

Publish Date: 2019-04-01

Abstract

Abstract

In order to obtain the chemical reaction zone of HMX based JOB-9003 explosive, experimental measurements on the detonation wave profile of solid explosives using photon Doppler velocimetry (PDV) have been performed. Planar detonations were produced by impacting the explosive with sapphire flyer launched from a powder gun. Particle velocity wave profiles were measured at the explosive/window interface. LiF windows with very thin vapor deposited aluminum mirrors were used in the experiments. The time resolution of PDV is about 1 ns, and the velocity uncertainty is less than 2%. The measurements show distinct end to the reaction zone indicating a CJ point in JOB-9003. The results show that the reaction time of JOB-9003 is (11±2) ns, and the corresponding reaction length is (0.075±0.014) mm. The CJ pressure is (35.6±0.9) GPa, and the pressure at Von-Neumann spike is (47.9±1.2) GPa.
- detonation reaction zone,
- HMX,
- CJ pressure,
- laser interferometric method

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References(31)

References

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