Three modes of penetration mechanics of A3 steel cylindrical projectiles impact onto 45 steel plates
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摘要: 为了研究破片模拟弹的终点弹道效应,进行了不同质量A3钢钝头弹(弹径25 mm)撞击45钢板的试验研究，其中A3钢强度弱于45钢。在约200～800 m/s的撞击速度范围内，随着撞击速度的增加，分别观察到弹体出现泰勒撞击、向日葵型花瓣帽形失效及靶板冲塞穿甲三种破坏模式。伴随弹体和靶体经历的不同结构破坏模式，弹材和靶材也经历着相当复杂的材料失效。Abstract: The ballistic trajectory effect of the fragment simulation projectile was experimentally researched by A3 steel cylindrical projectiles (diameter of projectile 25 mm) impacting 45 steel plates. The intensity of A3 steel is less than that of 45 steel. In the velocity ranges of 200～800 m/s, Taylor impact, petal-cap failure of sunflower alike and plugging perforation are observed respectively in the plates with increasing velocity. Complicated material failures of projectile and target conflict with the different penetration mechanisms.
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