Scaling in the time-dependent failure of a fiber bundle with local load sharing

Abstract

We study the scaling behaviors of a time-dependent fiber-bundle model with local load sharing. Upon approaching the complete failure of the bundle, the breaking rate of fibers diverges according to $r(t)\propto (T_f-t)^{-ξ}$, where $T_f$ is the lifetime of the bundle, and $ξ\approx 1.0$ is a quite universal scaling exponent. The average lifetime of the bundle $<T_f>$ scales with the system size as $N^{-δ}$, where $δ$ depends on the distribution of individual fiber as well as the breakdown rule.