Perforation modes of double-layered plates with air space struckby a blunt rigid projectile

Liu Bing; Chen Xiaowei

doi:10.11883/1001-1455(2016)01-0024-07

Volume 36 Issue 1

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Liu Bing, Chen Xiaowei. Perforation modes of double-layered plates with air space struckby a blunt rigid projectile[J]. Explosion And Shock Waves, 2016, 36(1): 24-30. doi: 10.11883/1001-1455(2016)01-0024-07

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Liu Bing, Chen Xiaowei. Perforation modes of double-layered plates with air space struckby a blunt rigid projectile[J]. Explosion And Shock Waves, 2016, 36(1): 24-30. doi: 10.11883/1001-1455(2016)01-0024-07

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Perforation modes of double-layered plates with air space struckby a blunt rigid projectile

doi: 10.11883/1001-1455(2016)01-0024-07

Liu Bing¹,
Chen Xiaowei^{1, 2
,
,}

1.
School of Civil Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
2.
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2014-07-03
Rev Recd Date: 2015-02-06
Publish Date: 2016-01-25

Abstract

Abstract

In the cases of the perforation of a single-layered metal plate struck by a blunt rigid projectile, along with the increase of the plate thickness and that of the projectile velocity, the failure mode of the metal plate may transform from shear plugging to adiabatic shear plugging. Therefore, regarding the perforation of double-layered or multi-layered plates, the failure modes of various plates can be quite different. In this work we investigated these different perforation modes by conducting experimental analyses on the perforations of single- and double-layered Weldox E steel plates with air space. Our results indicate that, in the case of a higher initial striking velocity, the failure mode of the first layer plate is adiabatic shear plugging, while that of the second layer plate is adiabatic shear plugging or shear plugging as the striking velocity of the projectile slows down. We conclude that the final failure mode of the double-layered plates is the mixture of both shear plugging and adiabatic shear plugging.
- solid mechanics,
- perforation mode,
- shear plugging,
- double-layered plate,
- adiabatic shear plugging,
- single-layered plate

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References(15)

References

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