Phys. Rev. Lett. 91, 104301 (2003) [4 pages]Morphology and Scaling of Impact Craters in Granular Media
See accompanying Physics Focus 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. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.104301
DOI:
10.1103/PhysRevLett.91.104301
PACS:
45.70.–n, 83.80.Fg, 96.35.Gt
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.