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Volume 30 Issue 3
Jul  2022
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2022  >  30(3): 332-337
YANG Gui-tao, YU Yang-hui, ZHANG Hong, GUO Rui. Simulations and Experiments on the Damage of Tantalum Alloy EFP to Water-Partitioned Armor[J]. Journal of Unmanned Undersea Systems, 2022, 30(3): 332-337. doi: 10.11993/j.issn.2096-3920.2022.03.008
Citation: YANG Gui-tao, YU Yang-hui, ZHANG Hong, GUO Rui. Simulations and Experiments on the Damage of Tantalum Alloy EFP to Water-Partitioned Armor[J]. Journal of Unmanned Undersea Systems, 2022, 30(3): 332-337. doi: 10.11993/j.issn.2096-3920.2022.03.008
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Simulations and Experiments on the Damage of Tantalum Alloy EFP to Water-Partitioned Armor

doi: 10.11993/j.issn.2096-3920.2022.03.008

  • 1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;

  • 2. Shanxi Jiangyang Chemical Co., Ltd., Taiyuan 030041, China

  • Received Date: 2021-09-13
    Available Online: 2022-07-18
    Abstract
  • To study the damage effects of tantalum alloy explosively formed projectiles(EFPs) on the water-partitioned armor of submarines with double-layer armor(composed of a non-pressure-resistant hull, pressure-resistant hull, and water interlayer), numerical simulations and experiments were conducted, and the results were compared to numerical damage results for copper EFPs formed using the same charge structure. The results demonstrate that after penetrating a 3 mm non-pressure-resistant hull made of #45 steel and a 680 mm water layer, the tantalum alloy EFP still had residual kinetic energy acting on a 12 mm pressure-resistant shell made of #45 steel, which caused uplift deformation, but failed to penetrate. The copper EFP failed to penetrate the water layer after penetrating the non-pressure-resistant hull. The numerical simulation results are in good agreement with the experimental results, which proves that tantalum alloy is more suitable than copper as a liner material for underwater EFP warheads.

     

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