Influence of heat transfer on long-rod projectiles penetrating into ceramic targets

Li Ruiyu; Sun Yuxin; Zhou Ling; Sun Qiran; Zhao Yayun; Feng Jiangtuo

doi:10.11883/1001-1455(2017)02-0332-07

Volume 37 Issue 2

Mar. 2017

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Li Ruiyu, Sun Yuxin, Zhou Ling, Sun Qiran, Zhao Yayun, Feng Jiangtuo. Influence of heat transfer on long-rod projectiles penetrating into ceramic targets[J]. Explosion And Shock Waves, 2017, 37(2): 332-338. doi: 10.11883/1001-1455(2017)02-0332-07

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Influence of heat transfer on long-rod projectiles penetrating into ceramic targets

doi: 10.11883/1001-1455(2017)02-0332-07

1.
National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
China Academy of Ordnance Science, Beijing 100000, China

Received Date: 2015-09-25
Rev Recd Date: 2016-03-23
Publish Date: 2017-03-25

Abstract

Abstract

Based on the finite element method, the heat conduction equation was made discrete and written as the heat transfer computation code which was then embedded into the existing impact dynamics program. The new program was applied to the numerical analysis of the long-rod projectile penetrating into AD95 ceramic targets in the range of 900-1 800 m/s, and the influence of heat transfer on penetration capability was examined. Calculations show that the calculated penetration depth is less than that by the adiabatic model when the heat transfer is taken into account in the range of 900-1 350 m/s. However, it is opposite when the velocity of the projectile comes in the range of 1 450-1 800 m/s. The results by the heat transfer model and the adiabatic model are close to each other in the range of 1 350-1 450 m/s.
- penetration,
- heat transfer,
- finite element,
- ceramic

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References(13)

References

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