1/f noise and avalanche scaling in plastic deformation

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1/f noise and avalanche scaling in plastic deformation. / Laurson, L.; Alava, M.J.

In: Physical Review E, Vol. 74, No. 6, 066106, 2006, p. 1-5.

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@article{c6e494c54c3749568379dffc7b15017c,
title = "1/f noise and avalanche scaling in plastic deformation",
abstract = "We study the intermittency and noise of dislocation systems undergoing shear deformation. Simulations of a simple two-dimensional discrete dislocation dynamics model indicate that the deformation rate exhibits a power spectrum scaling of the type 1∕fα. The noise exponent is far away from a Lorentzian, with α≈1.5. This result is directly related to the way the durations of avalanches of plastic deformation activity scale with their size.",
keywords = "noise, plasticity, noise, plasticity, noise, plasticity",
author = "L. Laurson and M.J. Alava",
year = "2006",
doi = "10.1103/PhysRevE.74.066106",
language = "English",
volume = "74",
pages = "1--5",
journal = "Physical Review E",
issn = "2470-0045",
publisher = "American Physical Society",
number = "6",

}

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TY - JOUR

T1 - 1/f noise and avalanche scaling in plastic deformation

AU - Laurson, L.

AU - Alava, M.J.

PY - 2006

Y1 - 2006

N2 - We study the intermittency and noise of dislocation systems undergoing shear deformation. Simulations of a simple two-dimensional discrete dislocation dynamics model indicate that the deformation rate exhibits a power spectrum scaling of the type 1∕fα. The noise exponent is far away from a Lorentzian, with α≈1.5. This result is directly related to the way the durations of avalanches of plastic deformation activity scale with their size.

AB - We study the intermittency and noise of dislocation systems undergoing shear deformation. Simulations of a simple two-dimensional discrete dislocation dynamics model indicate that the deformation rate exhibits a power spectrum scaling of the type 1∕fα. The noise exponent is far away from a Lorentzian, with α≈1.5. This result is directly related to the way the durations of avalanches of plastic deformation activity scale with their size.

KW - noise

KW - plasticity

KW - noise

KW - plasticity

KW - noise

KW - plasticity

UR - http://www.arxiv.org/abs/cond-mat/0611442

U2 - 10.1103/PhysRevE.74.066106

DO - 10.1103/PhysRevE.74.066106

M3 - Article

VL - 74

SP - 1

EP - 5

JO - Physical Review E

JF - Physical Review E

SN - 2470-0045

IS - 6

M1 - 066106

ER -

ID: 3505927