Theoretical model of interface defeat/penetration transition velocity of ceramic armor impacted by long-rod projectile

Tan Mengting; Zhang Xianfeng; Ge Xiankun; Liu Chuang; Xiong Wei

doi:10.11883/1001-1455(2017)06-1093-08

Volume 37 Issue 6

Sep. 2017

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Tan Mengting, Zhang Xianfeng, Ge Xiankun, Liu Chuang, Xiong Wei. Theoretical model of interface defeat/penetration transition velocity of ceramic armor impacted by long-rod projectile[J]. Explosion And Shock Waves, 2017, 37(6): 1093-1100. doi: 10.11883/1001-1455(2017)06-1093-08

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Theoretical model of interface defeat/penetration transition velocity of ceramic armor impacted by long-rod projectile

doi: 10.11883/1001-1455(2017)06-1093-08

1.
Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
Unit 95856 of PLA, Nanjing 210000, Jiangsu, China

Received Date: 2016-03-24
Rev Recd Date: 2016-08-18
Publish Date: 2017-11-25

Abstract

Abstract

In this study a theoretical model was established to predict the interface defeat/penetration transition velocity of a ceramic armor impacted by a long-rod projectile. Predications of the transition velocity were obtained by measuring the stress inside the target and then applying it in turn to the conical crack and the wing crack propagation theory. After that, a theoretical model consisting of the conical and the wing crack propagation theory was presented. The results show that the theoretical model can reasonably well describe the interface defeat/penetration transition process. The interface defeat/penetration transition velocity calculated by the theoretical model agrees well with the experimental results from the previously published literature. The conical crack propagation dominates the interface defeat/penetration transition process when the projectile radius is small, while the wing crack dominates the transition when the projectile radius is large.
- impact dynamics,
- ceramic armor,
- interface defeat/penetration transition velocity,
- Hertz contact theory,
- conical crack,
- wing crack

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References(22)

References

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