Theoretical Analysis and Numerical Simulation of Detonation-Driven Directional Dispersing of Metal Particles

Fan Zhuangqing; Li Juncheng; Li Huimin; Lu Yonggang; Wang Jianmin; Chen Jing; Kang Jianyi

doi:10.18311/jmmf/2017/26999

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Authors

Fan Zhuangqing
State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery, Third Military Medical University, Chongqing 40042 ,CN
Li Juncheng
Institute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621 900, Sichuan, ,CN
Li Huimin
Institute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621 900, Sichuan, ,CN
Lu Yonggang
Institute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621 900, Sichuan, ,CN
Wang Jianmin
State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery, Third Military Medical University, Chongqing 40042 ,CN
Chen Jing
State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery, Third Military Medical University, Chongqing 40042 ,CN
Kang Jianyi
State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery, Third Military Medical University, Chongqing 40042 ,CN

DOI:

https://doi.org/10.18311/jmmf/2017/26999

Keywords:

Detonation-Driven, Particle, Directional Dispersing, Theoretical Analysis, Numerical Simulation.

Abstract

In order to achieve directional dispersing of metal particles, a detonation-driven model placing metal particles and explosives together inside a rigid pipe was developed in this study. The one-dimensional detonation wave theoretical analysis was conducted to explore the relationship between the dispersing velocity and the mass of particles and explosives. Moreover, the three-dimensionl finite element simulations were performed with mass ratio of explosive/ particle at 0.5:1, 1:1 and 2:1 respectively, while the particle diameter was 0.05cm. An empirical formula describing the relationship between the dispersing velocity and the mass ratio of explosive particle was obtained as the result of theoretical analysis. The simulation results demonstrated that the particles fly along the axissteadily, with little scattering and good directionality. The dispersing velocities derived from theoretical analysis were found to agree with the results of the numerical simulations, which suggested the availability of this investigation.