Volume 33 Issue 1
Jan 2019
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ZHANG Yuanhao, CHENG Zhongqing, HOU Hailiang, ZHU Xi. Numerical Simulation of Residual Characteristics of Protecting Liquid Cabin Penetrated by High Velocity Cube Fragments[J]. Chinese Journal of High Pressure Physics, 2019, 33(1): 015103. doi: 10.11858/gywlxb.20180576
Citation: ZHANG Yuanhao, CHENG Zhongqing, HOU Hailiang, ZHU Xi. Numerical Simulation of Residual Characteristics of Protecting Liquid Cabin Penetrated by High Velocity Cube Fragments[J]. Chinese Journal of High Pressure Physics, 2019, 33(1): 015103. doi: 10.11858/gywlxb.20180576

Numerical Simulation of Residual Characteristics of Protecting Liquid Cabin Penetrated by High Velocity Cube Fragments

doi: 10.11858/gywlxb.20180576
  • Received Date: 08 Jun 2018
  • Rev Recd Date: 17 Jul 2018
  • In this study we investigated the residual characteristics of the high velocity fragments penetrating the protective liquid cabin using finite element analysis by ANSYS/LS-DYNA, found out about the variation of the penetration depth and the velocity of the fragment after the fragments’ penetration into the vertical and inclined liquid cabins, and discussed the optimal inclination angle of the liquid tank in a ship. The results indicated that the presence of the inclination feature of the liquid cabin helps to reduce the instantaneous velocity of the fragments entering the water, and the velocity dropped faster in water with the increase of the instantaneous velocity of the fragments. In the stage of impact and cavitation, the penetration depth of the fragments rose immediately, and the larger the instantaneous velocity, the faster the increase of the penetration depth. The penetration depth in the two phases was about 10% of the final penetration. Judging by the rate of the decrease of the projectile’s velocity and that of increase of the fragments’ penetration depth, we conclude that the tank with a tilt of 60° can achieve better protection.

     

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