Department of Physics Papers

Document Type

Journal Article

Date of this Version

5-16-2003

Publication Source

Physical Review Letters

Volume

90

Issue

19

Start Page

194301-1

Last Page

194301-4

DOI

10.1103/PhysRevLett.90.194301

Abstract

We report on craters formed by balls dropped into dry, noncohesive, granular media. By explicit variation of ball density ρb, diameter Db, and drop height H, the crater diameter is confirmed to scale as the 1/4 power of the energy of the ball at impact: Dc∼(ρbD3bH)1/4. Against expectation, a different scaling law is discovered for the crater depth: d (ρ3/2bD2bH)1/3. The scaling with properties of the medium is also established. The crater depth has significance for granular mechanics in that it relates to the stopping force on the ball.

Copyright/Permission Statement

© 2003 American Physical Society. You can view the original article at: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.90.194301

Comments

At the time of publication, author Douglas J. Durian was affiliated with University of California, Los Angeles. Currently, he is a faculty member at the Physics Department at the University of Pennsylvania.

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Date Posted:10 October 2017

This document has been peer reviewed.