1958/01/01 by Lasse Laurson, Mikko J. Alava, Mikko Alava +1 · 1 citation
Environmental Science · Physics and Astronomy · #Force Microscopy Techniques and Applications #Landslides and related hazards #Quantum chaos and dynamical systems #Quantum many-body systems #Theoretical and Computational Physics #cond-mat.mtrl-sci #cond-mat.stat-mech
paper · pdf · doi:10.1103/physreve.74.066106
published as Phys. Rev. E 74, 066106 (2006) · 6 pages, 5 figures, submitted to Phys. Rev. E
openalex publication_date 1958/01/01 · arxiv created 2006/11/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
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/falpha. The noise exponent is far away from a Lorentzian, with alpha approximately 1.5. This result is directly related to the way the durations of avalanches of plastic deformation activity scale with their size.