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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Experimental investigation of impact of long rod eroding projectiles against rolled homogeneous armour
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Experimental investigation of impact of long rod eroding projectiles against rolled homogeneous armour

机译：长杆侵蚀弹轧滚动均匀盔甲的影响的实验研究

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摘要

Long rod eroding penetrators exhibit hydrodynamic behaviour upon impact against the target plates. An experimental study was carried out to investigate the factors affecting the penetration of tungsten alloy rods against rolled homogenous armour at ordnance velocities. Experiments were carried out for range of projectile length to diameter ratios to determine the penetration efficiency of the projectile, where the projectile penetration efficiency is the penetration depth per unit projectile length. Analytical Alekseevski-Tate model was implemented to predict the penetration depth across the length to diameter range and the results were compared with the experimental data. The tungsten percentage of the projectile material was also varied to change its mechanical properties and thus observe the effect of the same on the penetration depth. The experimental results showed a linear relationship between the penetration efficiency and the length to diameter ratio across the considered range of length to diameter ratios. The Alekseevski-Tate model predictions were not consistent across as the model does not consider the effect of length to diameter ratio. The projectiles with high impact energy were able to perforate the target plate.
机译：长杆腐蚀穿透器在撞击靶板时表现出流体动力学行为。进行了实验研究，以研究影响钨合金棒对轧制旋转均匀铠装的因素。对直径比的射弹长度进行实验，以确定射弹的穿透效率，其中射弹穿透效率是每单位射弹长度的穿透深度。实施分析Alekseevski-Tate模型以预测直径范围的长度渗透深度，并将结果与​​实验数据进行比较。滴血材料的钨百分比也变化以改变其机械性能，从而观察到渗透深度的效果。实验结果表明，穿透效率和直径比在考虑的长度范围内的长度与直径比率之间的线性关系。由于模型不考虑长度与直径比的效果，Alekseevski-Tate模型预测不一致。具有高冲击能量的射弹能够穿孔目标板。

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