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Volume 33 Issue 2
Apr 2019
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Chinese Journal of High Pressure Physics  > 2019  >  33(2): 025102.
GAO Zhao, LI Yongqing, HOU Hailiang, LI Mao, ZHU Xi. Penetration Mechanism of Polyurea Coating Composite Structure[J]. Chinese Journal of High Pressure Physics, 2019, 33(2): 025102. doi: 10.11858/gywlxb.20180619
Citation: GAO Zhao, LI Yongqing, HOU Hailiang, LI Mao, ZHU Xi. Penetration Mechanism of Polyurea Coating Composite Structure[J]. Chinese Journal of High Pressure Physics, 2019, 33(2): 025102. doi: 10.11858/gywlxb.20180619
shu

Penetration Mechanism of Polyurea Coating Composite Structure

doi: 10.11858/gywlxb.20180619

  • College of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, China

  • Received Date: 22 Aug 2018
  • Rev Recd Date: 10 Sep 2018
    Abstract
  • For exploring the perforation mechanism of the polyurea coating composite structure, the ballistic tests in which the target was made of steel plate coated with elastomer were carried out. During the experiment, the damage modes of projectiles and targets were obtained and employed for further analysis. The pre-polyurea coating can effectively buffer the impact load between the spherical projectile and the steel target, so that the steel target is pre-deformed, the relative penetration velocity is reduced, resulting in further improving the ballistic limit of composite structure. The post-polyurea coating can deform coordinately with the steel plate and form a plug mass to absorb the kinetic energy of projectile. The results also show that the steel target with post-polyurea coating could achieve better energy absorbing at higher projectile velocity.

     

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