Morphology and Scaling of Impact Craters in Granular Media

Details Morphology and Scaling of Impact Craters in Granular Media Morphology and Scaling of Impact Craters in Granular Media

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phrvl..91j4301w&link_type=abstract

Physical Review Letters, vol. 91, Issue 10, id. 104301

Physics

39

Granular Systems, Granular Solids

Scientific paper

We present the results of experiments on impact craters formed by dropping a steel ball vertically into a container of small glass beads. As the energy of impact increases, we observe a progression of crater morphologies analogous to that seen in craters on the moon. We find that both the diameter and the depth of the craters are proportional to the 1/4 power of the energy. The ratio of crater diameter to rim-to-floor depth is constant for low-energy impacts, but increases at higher energy, similar to what is observed for lunar craters.

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