Characterizing detonation-induced micro-jetting by using step signal electric probe

WEN Xuefeng; WANG Xiaoyan; WANG Jian; REN Guowu; HONG Renkai; HU Yang

doi:10.11883/bzycj-2018-0104

Volume 39 Issue 7

Jul. 2019

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Article Navigation > Explosion And Shock Waves > 2019 > 39(7): 074102

WEN Xuefeng, WANG Xiaoyan, WANG Jian, REN Guowu, HONG Renkai, HU Yang. Characterizing detonation-induced micro-jetting by using step signal electric probe[J]. Explosion And Shock Waves, 2019, 39(7): 074102. doi: 10.11883/bzycj-2018-0104

Citation:

WEN Xuefeng, WANG Xiaoyan, WANG Jian, REN Guowu, HONG Renkai, HU Yang. Characterizing detonation-induced micro-jetting by using step signal electric probe[J]. Explosion And Shock Waves, 2019, 39(7): 074102. doi: 10.11883/bzycj-2018-0104

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Characterizing detonation-induced micro-jetting by using step signal electric probe

doi: 10.11883/bzycj-2018-0104

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

Received Date: 2018-03-30
Rev Recd Date: 2018-08-24

Available Online: 2019-06-25

Publish Date: 2019-07-01

Abstract

Abstract

There is a lack in technology that is suitable for characterizing the shock-induced micro-jetting of metal sample with complex configuration. In this work, step signal electric probe is developed to characterize micro-jetting. The probe is designed by numerical simulation and the discharging mechanism (K+R_X model) of probe caused by micro-jetting is also verified by simulation. Quasi-continuous micro-jetting region can be directly observed on the probed signal and two kinds of dynamic processes exist: density increasing and pulling-extending to discrete state. The mass in quasi-continuous micro-jetting region is described by micro-jetting model, the equivalent size of micro-jetting is calculated based on the equivalent resistance that is obtained from the voltage signal. Thus the density of the quasi-continuous micro-jetting is obtained.
- detonation,
- micro-jetting,
- quasi-continuous,
- step signal electric probe

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References(13)

References

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