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郭亚周,刘小川,白春玉,等. 子弹旋转对平板高速撞击损伤的影响[J]. 科学技术与工程, 2020, 20(30): 12607-12612.
Guo Yazhou,et al.Study on the effect of bullet rotation on the high speed impact damage of plate[J].Science Technology and Engineering,2020,20(30):12607-12612.
子弹旋转对平板高速撞击损伤的影响
Study on the effect of bullet rotation on the high speed impact damage of plate
投稿时间:2019-11-25  修订日期:2020-08-03
DOI:
中文关键词:  旋转速度  平板撞击  变形模式  剩余速度  能量耗散
英文关键词:Rotation speed  Plate impact  Deformation mode  Residual velocity  energy dissipation
基金项目:陕西省青年科技新星项目(2018KJXX-052)
              
作者单位
郭亚周 中国飞机强度研究所
刘小川 中国飞机强度研究所
白春玉 中国飞机强度研究所
张宇 中国飞机强度研究所
王计真 中国飞机强度研究所
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中文摘要:
      子弹在作战状态下往往伴随着高速的旋转,为了研究子弹的旋转对平板高速撞击响应的影响,构建了旋转子弹侵彻平板的计算模型,根据相关实验结果确定了合理的材料参数,研究了子弹在不同转速、不同入射速度下侵彻不同厚度平板的撞击响应差异性。研究结果表明,在保证子弹的入射速度相同的前提下,不同转速的旋转子弹撞击较薄平板的变形模式差异性比撞击较厚平板的变形模式差异性大;子弹的旋转速度越高,其侵彻后的剩余速度越大,但子弹撞击平板的撞击载荷受子弹转速的影响却不明显;在不考虑温度的情况下,子弹以相同速度撞击平板时,能量耗散量基本不随子弹转速变化。
英文摘要:
      Bullets often rotate with high speed in the combat state, in order to study the influence of the rotation of the bullet on the high-speed impact response of the flat plate, the FEM of the bullet penetrating the flat plate was constructed, and the reasonable material parameters were determined according to the relevant experimental results,and the impact response differences of the bullets penetration into the plate with different thickness under different rotational speed and different incident speed were studied. The results show that under the same incident velocity of the bullet, the deformation modes of the rotating bullet impacting the thinner plate are more different than those of the thicker plate. The residual velocity after penetration is proportional to its rotation velocity, but the impact load of the bullet hitting the plate is not obviously affected by the rotation speed of the bullet. When the bullets strike the plates at the same velocity without considering the temperature, the energy dissipation basically does not change with the bullet speed.
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