314 薄肉円管の動的座屈モードとエネルギー吸収特性(OS 材料・構造の動的特性(3))

抄録

To examine axial crushing behavior of thin-walled structures under axial compression, a series of numerical simulations and experiments for circular tubes were conducted. In the estimation of the energy-absorption abilities of those specimens, we especially paid attention to the relation between the absorbed energy per unit volume and the ratio of thickness to diameter, as well as the effect of strain rate dependence of specimen material in these examinations. We also tried to clarify the relation between the buckling modes and the initial imperfection through the numerical simulations.