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
Recommended Citation
Uehara, J. S., Ambroso, M. A., Ojha, R., & Durian, D. J. (2003). Low-Speed Impact Craters in Loose Granular Media. Physical Review Letters, 90 (19), 194301-1-194301-4. http://dx.doi.org/10.1103/PhysRevLett.90.194301
Date Posted: 13 October 2017
This document has been peer reviewed.
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.