Projectile interactions in granular impact cratering

被引：68

作者：

Nelson, E. L. ^{[1
]}

Katsuragi, H. ^{[1
]}

Mayor, P. ^{[1
]}

Durian, D. J. ^{[1
]}

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.101.068001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present evidence for the interactions between a ball and the container boundaries, as well as between two balls, that are mediated by the granular medium during impact cratering. The presence of the bottom boundary affects the final penetration depth only for low drop heights with shallow filling, in which case, surprisingly, the penetration becomes deeper. By contrast the presence of the sidewall causes less penetration and also an effective repulsion. Repulsion is also found for two balls dropped side by side.

引用

页数：4

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