Slip avalanches in a fiber bundle model

Z. Halász, F. Kun

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We study slip avalanches in disordered materials under an increasing external load in the framework of a fiber bundle model. Overstressed fibers of the model do not break, instead they relax in a stick-slip event which may trigger an entire slip avalanche. Slip avalanches are characterized by the number of slipping fibers, by the slip length, and by the load increment, which triggers the avalanche. Our calculations revealed that all three quantities are characterized by power law distributions with universal exponents. We show by analytical calculations and computer simulations that varying the amount of disorder of slip thresholds and the number of allowed slips of fibers, the system exhibits a disorder-induced phase transition from a phase where only small avalanches are formed to another one where a macroscopic slip appeares.

Original languageEnglish
Article number26008
JournalEPL
Volume89
Issue number2
DOIs
Publication statusPublished - Feb 16 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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