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Volume 33 Issue 5
Sep 2019
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Chinese Journal of High Pressure Physics  > 2019  >  33(5): 055102.
DU Ning, ZHANG Xianfeng, XIONG Wei, DING Li, WANG Jipeng, LIU Chuang. Experimental Study on the Penetration of Steel Fragments with Different Hardness into Q235A Steel Plate[J]. Chinese Journal of High Pressure Physics, 2019, 33(5): 055102. doi: 10.11858/gywlxb.20180631
Citation: DU Ning, ZHANG Xianfeng, XIONG Wei, DING Li, WANG Jipeng, LIU Chuang. Experimental Study on the Penetration of Steel Fragments with Different Hardness into Q235A Steel Plate[J]. Chinese Journal of High Pressure Physics, 2019, 33(5): 055102. doi: 10.11858/gywlxb.20180631
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Experimental Study on the Penetration of Steel Fragments with Different Hardness into Q235A Steel Plate

doi: 10.11858/gywlxb.20180631

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

  • Received Date: 10 Sep 2018
  • Rev Recd Date: 09 Jan 2019
    Abstract
  • Quasi-static tensile/compression and SHPB (split Hopkinson pressure bar) compression tests were conducted in order to study the mechanical properties of steel fragments with different hardness. Furthermore, the fragments were launched by a ballistic gun at different velocities into a Q235A steel plate with finite thickness. The correlation between the mechanical properties and the failure mode of fragments was analyzed based on the ballistic test results. Combined with the dimensional analysis method, the empirical relationship of the ballistic limit velocity of the steel fragments with different hardness penetrating into the Q235A steel plate was obtained. The results show that the mass loss of the fragments decreases with the increase of the hardness of the fragments, while the residual length of the fragments decreases with the increase of the hardness. The penetration ability of fragments increases with the increase of the hardness. The residual velocity of the fragments with HRC36 was relatively higher than that with HRC20 after penetration. The predicted values of the determined empirical relationships agree well with the experimental results.

     

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