This study investigates the energy absorption of thin-walled tubes under dynamic axial crushing. The crush energy is known to be affected by the crush speed and geometry of the perforated tubes. The perforation geometry characterized by the size, shape, and array pattern of the holes was selected with respect to a square reference tube with equal mass. Tests and finite element analyses (FEAs) were performed in conjunction with the design of experiments (DOE). Relative to the reference tube, an average increase of 19.5% in energy absorption was achieved with a set of perforated tubes.

中文翻译：

---

动态轴向挤压中带有穿孔的方管的能量吸收

本研究研究了动态轴向挤压作用下薄壁管的能量吸收。已知粉碎能量受穿孔管的粉碎速度和几何形状的影响。对于质量相同的方形参考管，选择以孔的大小，形状和排列方式为特征的穿孔几何形状。结合实验设计（DOE）进行了测试和有限元分析（FEA）。相对于参考管，一组穿孔管的能量吸收平均增加了19.5％。