title: Time evolution of damage under variable ranges of load transfer.
abstract: We study the time evolution of damage in a fiber bundle model in which the range of interaction of fibers varies through an adjustable stress transfer function recently introduced. We find that the lifetime of the material exhibits a crossover from mean-field to short-range behavior as in the static case. Numerical calculations showed that the value at which the transition takes place depends on the system's disorder. Finally, we have performed a microscopic analysis of the failure process. Our results confirm that the growth dynamics of the largest crack is radically different in the two limiting regimes of load transfer during the first stages of breaking.
authors.affiliation: The Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, Trieste I-34014, Italy.
authors.forename: Oluwole E
authors.initials: OE
authors.lastname: Yewande
authors.forename: Yamir
authors.initials: Y
authors.lastname: Moreno
authors.forename: Ferenc
authors.initials: F
authors.lastname: Kun
authors.forename: Raul Cruz
authors.initials: RC
authors.lastname: Hidalgo
authors.forename: Hans J
authors.initials: HJ
authors.lastname: Herrmann