Phys. Rev. Lett. 77, 2503–2506 (1996)Self-Organization and Annealed Disorder in a Fracturing ProcessReceived 21 February 1996; published in the issue dated 16 September 1996 We show that a vectorial model for inhomogeneous elastic media self-organizes under external stress. An onset of crack avalanches of every duration and length scale compatible with the lattice size is observed. The behavior is driven by the introduction of annealed disorder, i.e., by lowering the breaking threshold in the neighborhood of a bond broken by the stress, with a process similar to self-organized criticality. A further comparison with experimental results of acoustic emission (AE), shows that the stability of the elastic potential energy of the system in the AE regime is a sufficient condition for reproducing the algebraic distribution of the energy released during cracks formation. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.2503
DOI:
10.1103/PhysRevLett.77.2503
PACS:
64.60.Lx, 05.40.+j, 46.30.Nz, 62.20.Mk
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