Numerical simulation of disturbance by sandwich explosive on jet

MAO Dong-fang; LI Xiang-dong; SONG Liu-li

doi:10.11883/1001-1455(2008)01-0086-06

Volume 28 Issue 1

Sep. 2014

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MAO Dong-fang, LI Xiang-dong, SONG Liu-li. Numerical simulation of disturbance by sandwich explosive on jet[J]. Explosion And Shock Waves, 2008, 28(1): 86-91. doi: 10.11883/1001-1455(2008)01-0086-06

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Numerical simulation of disturbance by sandwich explosive on jet

doi: 10.11883/1001-1455(2008)01-0086-06

1.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Publish Date: 2008-01-25

Abstract

Abstract

The processes for the jet penetrating at different impact angles into a semi-infinite target with V-shaped sandwich explosive structure are simulated numerically by using the 3D finite element code (LS-DYNA). Simulated results are compared with the corresponding cases without sandwich explosive structure. After ignition of the V-shaped sandwich explosive，the active face and back plates have great disturbance and cutting effect on the jet, which make the jet deviated, bended and the penetration capability decreases about 30％～90％. Disturbance of V-shaped sandwich explosive structure on jet increases with the increase of the impact angle. Variations of V-shaped angles cant disturb observably penetration of jet.
- mechanics of explosion,
- cutting effect,
- numerical simulation,
- V-shaped sandwich explosive,
- jet

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