2006/09/27 by Anaël Lemaı̂tre, Lemaître, Anaël, C. Caroli +1
Environmental Science · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Material Dynamics and Properties #Plant Water Relations and Carbon Dynamics #Soft Condensed Matter (cond-mat.soft) #Theoretical and Computational Physics
paper · pdf · doi:10.48550/arxiv.cond-mat/0609689
openalex publication_date 2006/09/27 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28
We build a mean-field model of plasticity of amorphous solids, based on the\ndynamics of an ensemble shear transformation zones, interacting via intrinsic\ndynamical noise generated by the zone flips themselves. We compare the\nquasi-static, steady-state properties for two types of noise spectrum: (G)\nGaussian; (E) broad distribution derived from quadrupolar elastic interactions.\nWe find that the plastic flow proceeds via avalanches whose scaling properties\nwith system size are highly sensitive to noise tails. Comparison with available\ndata suggests that non-affine strain fields might be of paramount importance in\nthe small systems accessible to molecular simulations.\n