Numerical studies of explosion induced cylindrical shell fractureunder different detonating modes

Liu Ming-tao; Tang Tie-gang; Hu Hai-bo; Li Qing-zhong; Hu Xiu-zhang; Li Yong-chi

doi:10.11883/1001-1455(2014)04-0415-06

Volume 34 Issue 4

Sep. 2014

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Liu Ming-tao, Tang Tie-gang, Hu Hai-bo, Li Qing-zhong, Hu Xiu-zhang, Li Yong-chi. Numerical studies of explosion induced cylindrical shell fractureunder different detonating modes[J]. Explosion And Shock Waves, 2014, 34(4): 415-420. doi: 10.11883/1001-1455(2014)04-0415-06

Citation:

Liu Ming-tao, Tang Tie-gang, Hu Hai-bo, Li Qing-zhong, Hu Xiu-zhang, Li Yong-chi. Numerical studies of explosion induced cylindrical shell fractureunder different detonating modes[J]. Explosion And Shock Waves, 2014, 34(4): 415-420. doi: 10.11883/1001-1455(2014)04-0415-06

Citation:

Liu Ming-tao, Tang Tie-gang, Hu Hai-bo, Li Qing-zhong, Hu Xiu-zhang, Li Yong-chi. Numerical studies of explosion induced cylindrical shell fractureunder different detonating modes[J]. Explosion And Shock Waves, 2014, 34(4): 415-420. doi: 10.11883/1001-1455(2014)04-0415-06

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Numerical studies of explosion induced cylindrical shell fractureunder different detonating modes

doi: 10.11883/1001-1455(2014)04-0415-06

1.
Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, Anhui, China
2.
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

More Information

Corresponding author: Liu Ming-tao, lmt2005@mail.ustc.edu.cn
Received Date: 2012-12-19
Rev Recd Date: 2013-03-22
Publish Date: 2014-07-25

Abstract

Abstract

The explosion induced fracture of metallic cylinder under different detonating modes was simulated. The results show that different detonating modes lead to significant differences on the pressure and apply work history of the cylindrical shell. A semi-decoupling numerical method was proposed to thin the mesh size of the metallic cylinder and to simulate the process of destruction of cylindrical shell under different detonating modes with higher degree of accuracy. Theoretical analysis shows that this method is reasonable. The shear bands appearing during the fracture of metallic cylindrical shell was reproduced using this semi-decoupling method.
- solid mechanics,
- shear band,
- detonating mode,
- metallic cylindrical shell fracture

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References(8)

References

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