Fracture precursors in disordered systems

Year: 2004

Authors: Meacci G., Politi A., Zei M.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, largo E. Fermi 6, 50125 Firenze, Italy; Max Planck Institute for Physics of Complex Systems, Nothnitzer Strasse 38, 01187 Dresden Germany;
CECM-CNRS-Vitry 15 rue Georges Urbain, 94407 Vitry-sur-Seine, France

Abstract: A two-dimensional lattice model with bond disorder is used to investigate the fracture behaviour under stress-controlled conditions. Although the cumulative energy of precursors does not diverge at the critical point, its derivative with respect to the control parameter (reduced stress) exhibits a singular behaviour. Our results are nevertheless compatible with previous experimental findings, if one restricts the comparison to the (limited) range accessible in the experiment. A power law avalanche distribution is also found with an exponent close to the experimental values.

Journal/Review: EUROPHYSICS LETTERS

Volume: 66 (1)      Pages from: 55  to: 61

KeyWords: RUPTURE; AVALANCHES; DYNAMICS; FAILURE; TIME
DOI: 10.1209/epl/i2003-10152-9

ImpactFactor: 2.229
Citations: 3
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