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Signal Propagation in Nonlinear Granular Chain

Published online by Cambridge University Press:  01 February 2011

Jongbae Hong
Jongbae Hong*
Affiliation:
Department of Physics and Center for Strongly Correlated Materials Research, Seoul National University, Seoul 151–742, Korea
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Abstract

The vertical granular chain changes the elastic property of the medium due to gravity. Therefore, the solitary propagating mode in the horizontal chain disperses and damps in the vertical chain. We show that there are two different types of propagating modes, i.e., quasi-solitary and oscillatory, depending on the strength of impulse and the dispersion and damping of the signal follow power-laws. The power-law behavior in the linear oscillatory regime is explained analytically. The nonlinear solitary regime in which soliton damps and disperses due to gravity is discussed briefly.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 627: Symposium BB – The Granular State , 2000 , BB3.2
Copyright
Copyright © Materials Research Society 2000

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References

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