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Volume 31 Issue 2
Apr 2017
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Chinese Journal of High Pressure Physics  > 2017  >  31(2): 103-113.
TONG Zong-Bao, WANG Jin-Xiang, LIANG Li, QIAN Ji-Sheng, TANG Kui. Resistance Performance of Grooved Metal Target Subjected to Projectile Impact[J]. Chinese Journal of High Pressure Physics, 2017, 31(2): 103-113. doi: 10.11858/gywlxb.2017.02.002
Citation: TONG Zong-Bao, WANG Jin-Xiang, LIANG Li, QIAN Ji-Sheng, TANG Kui. Resistance Performance of Grooved Metal Target Subjected to Projectile Impact[J]. Chinese Journal of High Pressure Physics, 2017, 31(2): 103-113. doi: 10.11858/gywlxb.2017.02.002
shu

Resistance Performance of Grooved Metal Target Subjected to Projectile Impact

doi: 10.11858/gywlxb.2017.02.002
  • 1.

    Science and Technology on Transient Physics Laboratory, Nanjing University of Science and Technology, Nanjing 210094, China

  • 2.

    Jiangnan Industries Group Co.LTD, Xiangtan 411207, China

  • 3.

    Jinxi Industries Group Co.LTD, Taiyuan 030027, China

Funds:

National Natural Science Foundation of China 11272158

National Natural Science Foundation of China 11672138

Foundation of Science and Technology on Transient Physics Laboratory 9140C300405150C30005

More Information
  • Author Bio:

    TONG Zong-Bao(1988—), male, assistant engineer, major in warhead design.E-mail:asnyxun@163.com

  • Corresponding author: WANG Jin-Xiang(1978—), male, doctor, professor, major in explosion and impact dynamics.E-mail:wjx@njust.edu.cn
  • Received Date: 26 Apr 2016
  • Rev Recd Date: 28 Jun 2016
    Abstract
  • The damage modes and resistance performance of the annular pre-cut metal target impacted by the projectile were studied by experiments and numerical simulation.Influences of the projectile nose shape, the diameter as well as the depth of the annular groove on the resistance performance of the target were analyzed.The results show that there exist two kinds of damage modes for the target with an annular groove, one being the penetration of the inner part of the groove and the other the fracture along the bottom of the annular groove.The critical damage velocity (CDV) is closely related to the damage modes of the target.Generally, the grooved target was easier to be damaged than the intact one.The CDV decreases with the increase of the annular groove depth while it goes up with the increase of the annular groove diameter.Compared with the oval nose projectile, the CDV of the target is smaller for the flat nose projectile.The microscopic analysis shows that when the adiabatic shear band is formed inside the target, the plug is easier to be formed and the target is easier to be damaged.

     

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