This paper presents an experimental and theoretical study on the deformation of small diameter aluminum alloy (AA6063T5) circular tubes under lateral impact loading. Seven specimens classified as three groups were investigated by the drop weight test. The patterns and extent of damage between specimens were compared and discussed. Moreover, the experimental results show that the performance of specimens subjected to the lateral impact is significantly affected by the diameter-thickness ratio and impact energy while the impact momentum has little effect. The springback of the global displacement is found to be negatively correlated with the ratio of the impact energy and the diameter-thickness ratio. Afterward, this study develops an analytic solution on the elastoplastic global displacement of AA6063T5 tubes based on vibration theory. Compared to the experimental results, the elastic solution predicted the global displacement of the aluminum alloy specimens reasonably.

本文对小直径铝合金圆管（AA6063T5）在横向冲击载荷下的变形进行了实验和理论研究。通过落锤测试研究了被分类为三组的七个样本。比较并讨论了样品之间的损坏方式和程度。此外，实验结果表明，受到横向冲击的试样的性能受直径-厚度比和冲击能的影响很大，而冲击动量的影响很小。发现整体位移的回弹与冲击能量之比和直径-厚度比负相关。随后，本研究基于振动理论为AA6063T5管的弹塑性整体位移提出了解析解。