Phys. Rev. Lett. 94, 108001 (2005) [4 pages]Universal Power-Law Decay of the Impulse Energy in Granular Protectors
See accompanying Physics Focus Protecting a big impulse from outside is one of the important issues of our everyday life. A granular medium is often used as a protecting material. The impulse inside a granular medium is a solitary wave which may be confined temporarily to a particular region of the medium, which we call the granular container that plays the role of the protector. We find a universal power-law behavior in time for the leakage of the impulse energy confined inside various granular containers. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.108001
DOI:
10.1103/PhysRevLett.94.108001
PACS:
45.70.–n, 02.70.Ns, 43.25.+y, 46.40.Cd
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