薄壁圆柱壳轴向动力屈曲的实验研究

Experiment on Axial Dynamic Buckling of Thin-wall Cylindrical Shells

探讨圆柱壳的动力屈曲行为 ,有助于构造具有高吸能率的抗爆结构。采用落锤实验进行圆柱壳的动力屈曲行为研究中 ,超薄壁圆柱壳出现了一些特殊屈曲行为 ,在实验中观察到随着径厚比的增加 ,折屈边数有相应增加的趋势 ,存在过渡区。经吸能特性分析 ,在壁厚相同的条件下 。

The exploration of the dynamic buckling is helpful to constitute an anti explosion structure. In the experiment by dropping a hammer, extraordinary buckling patterns occur to the thin wall cylindrical shells.With the increase of the ratio of diameter to thickness, the number of the edges of a folded part increases with transition zones. By analyzing the energy absorbing features, it is found that with the thickness unchanged, the amount absorbed is proportional to the diameter of the cylindrical shells.