钙质砂侵彻试验与理论研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (17) : 232-237.

论文

钙质砂侵彻试验与理论研究

苗伟伟1，邱艳宇1,2，程怡豪1,，文祝2，郭磊2，王明洋1,2

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Experimental and Theoretical Studies on the Penetration of Calcareous Sand

MIAO Weiwei1, QIU Yanyu1,2,CHENG Yihao1, WEN Zhu2, GUO Lei2, WANG Mingyang1,2

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摘要

采用弹径14.5mm的圆锥形头部弹体开展300—1000 m/s速度范围内钙质砂的侵彻试验，观察弹体磨蚀、介质破碎以及侵彻深度；建立刚性弹体侵彻钙质砂的拟流体侵彻理论模型，并与试验结果进行对比。结果表明：弹体侵彻后在弹头出现了明显的磨蚀划痕，在弹道附近存在由原砂样破碎而形成的白色粉末，弹体在介质中的侵彻深度随撞击速度的增大而增大；模型与试验结果吻合较好，可用来预测撞击速度在300—1000 m/s范围内钙质砂的侵彻深度；文末得到了归一化的侵彻深度计算公式。

Abstract

Here,cone-shaped projectiles with the diameter of 14.5 mm were used to conduct penetration tests of calcareous sand within the impact speed range of 300-1 000 m/s to observe projective abrasion,media crushing and penetration depth.The quasi-fluid penetration theoretical model for rigid projectiles penetrating calcareous sand was built.Its calculation results were compared with test ones.Results showed thatafter projectiles penetrating, their warheads have obvious abrasion scratches; there are white powders formed by crushing the original sand near projectiles’trajectories; penetration depth of projectiles in calcareous sand increases with increase intheir impact speed; the model results agree better with test ones,soit can be used to predict calcareous sand’s penetration depth within the impact speed range of 300-1 000 m/s.Finally, the normalized penetration depth calculation formula was deduced.

导出引用

苗伟伟1，邱艳宇1,2，程怡豪1,，文祝2，郭磊2，王明洋1,2. 钙质砂侵彻试验与理论研究[J]. 振动与冲击, 2019, 38(17): 232-237

MIAO Weiwei1, QIU Yanyu1,2,CHENG Yihao1, WEN Zhu2, GUO Lei2, . Experimental and Theoretical Studies on the Penetration of Calcareous Sand[J]. Journal of Vibration and Shock, 2019, 38(17): 232-237

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