Shock initiation characteristics of expired single-base propellants

Jiang Xi-bo; Rao Guo-ning; Xu Sen; Yao Miao; Ma An-peng; Peng Jin-hua

doi:10.11883/1001-1455(2014)01-0099-07

Volume 34 Issue 1

Mar. 2014

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Article Navigation > Explosion And Shock Waves > 2014 > 34(1): 99-105

Jiang Xi-bo, Rao Guo-ning, Xu Sen, Yao Miao, Ma An-peng, Peng Jin-hua. Shock initiation characteristics of expired single-base propellants[J]. Explosion And Shock Waves, 2014, 34(1): 99-105. doi: 10.11883/1001-1455(2014)01-0099-07

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Jiang Xi-bo, Rao Guo-ning, Xu Sen, Yao Miao, Ma An-peng, Peng Jin-hua. Shock initiation characteristics of expired single-base propellants[J]. Explosion And Shock Waves, 2014, 34(1): 99-105. doi: 10.11883/1001-1455(2014)01-0099-07

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Shock initiation characteristics of expired single-base propellants

doi: 10.11883/1001-1455(2014)01-0099-07

School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, Jiangsu, China

Received Date: 2012-08-20
Rev Recd Date: 2012-12-05
Publish Date: 2014-01-25

Abstract

Abstract

The continuous detonation velocity test, the shock wave sensitivity test and the critical initiation pressure testwere developed, respectively, with reference to the GJB772A-97 card gap test.Based on the above tests, the detonation establishment process in the expired single-base propellantwas investigated, and the critical gap thickness and the critical initiation pressure were obtained.In the continuous detonation velocity test, the building-up process of the reactive shock wave was observed at the PMMA gap thickness of 50 mm and itdeveloped into a normal detonation at the PMMA gap thickness of90mm.The critical gap thicknesswas 50-52 mm obtained from the shock wave sensitivity test.And the critical initiation pressure was1.35-1.49 GPa obtained from the critical initiation pressure test.According to the above tests, the numerical simulations were conducted to calibrate the parameters of the reactive rate equation in the ignition-and-growth model for the expired single-base propellant.
- mechanics of explosion,
- shock initiation,
- continuous detonation velocity,
- expired single-base propellant,
- shock wave sensitivity,
- reaction rate equation

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References(20)

References

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