约束对颗粒冲击穿透的影响。
Influence of confinement on granular penetration by impact.
作者信息
Seguin Antoine, Bertho Yann, Gondret Philippe
机构信息
Univ Paris-Sud, Univ Paris 6, CNRS, Lab FAST, Bât. 502, Campus Univ, F-91405 Orsay, France.
出版信息
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Jul;78(1 Pt 1):010301. doi: 10.1103/PhysRevE.78.010301. Epub 2008 Jul 8.
We study experimentally the influence of confinement on the penetration depth of impacting spheres into a granular medium contained in a finite cylindrical vessel. The presence of close lateral walls reduces the penetration depth, and the characteristic distance for these lateral wall effects is found to be of the order of one sphere diameter. The influence of the bottom wall is found to have a much shorter range.
我们通过实验研究了约束对撞击球体进入有限圆柱形容器内颗粒介质时穿透深度的影响。靠近的侧壁的存在会减小穿透深度，并且发现这些侧壁效应的特征距离约为一个球体直径。发现底壁的影响范围要短得多。
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