Numerical simulation on detonating shelled explosives by energetic fragments

Li Xu -feng; Li Xiang -dong; Gu Wen -bin; Li Yu -chun; Qin Ru -ping

doi:10.11883/1001-1455(2014)02-0202-07

Volume 34 Issue 2

May 2014

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Li Xu -feng, Li Xiang -dong, Gu Wen -bin, Li Yu -chun, Qin Ru -ping. Numerical simulation on detonating shelled explosives by energetic fragments[J]. Explosion And Shock Waves, 2014, 34(2): 202-208. doi: 10.11883/1001-1455(2014)02-0202-07

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Numerical simulation on detonating shelled explosives by energetic fragments

doi: 10.11883/1001-1455(2014)02-0202-07

1.
College of Field Engineering, PLA University of Science and Technology, Nanjing210007, Jiangsu, China
2.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing210094, Jiangsu, China

Funds: Supported by the National Natural Science Foundation of China (10902053)

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Corresponding author: Li Xiang-dong, lixiangd@aliyun.com
Received Date: 2012-09-24
Rev Recd Date: 2012-12-17
Publish Date: 2014-03-25

Abstract

Abstract

Simulated ammunitions were equivalent to aluminum-shelled explosives and a new energetic fragment was designed.The nonlinear dynamics software, LS-DYNA, was used to numerically simulate the complete processes of the energetic fragments penetrating the cover plates and detonating the shelled explosives.With the help of the up-and-down method, the impact velocities of the energetic fragments were calculated for detonating the shelled explosives with the cover plates of different thicknesses and compared with those of the solid fragments.The corresponding experiments were carried out to verify the typical data selected from the numerical simulations.The investigated results show that the explosives shelled by 8-16-mm thick aluminum covers can be effectively detonated by controlling the impact velocities of the energetic fragments and the detonation delay times of the energetic material in the fragments.
- mechanics of explosion,
- critical velocity,
- nonlinear dynamics software,
- shelled explosives,
- energetic fragment,
- detonating

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References(16)

References

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