Department of Physics Papers

Document Type

Journal Article

Date of this Version



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.


Suggested Citation:
E.L. Nelson, H. Katsuragi, P. Mayor and D.J. Durian. (2008). "Projectile Interactions in Granular Impact Cratering." Physical Review Letters. 101, 068001.

© 2008 The American Physical Society

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Physics Commons



Date Posted: 13 January 2011

This document has been peer reviewed.