[SY-K2] Symposium K-2

[SY-K2] Jump statistics of epicenters in thermally induced cracking of fiber bundles

^○Naoki Yoshioka¹, Ferenc Kun², Nobuyasu Ito^1,3 (1.RIKEN Center for Computational Science, Japan, 2.Department of Theoretical Physics, University of Debrecen, Hungary, 3.Department of Applied Physics, Graduate Schoold of Engineering, The University of Tokyo, Japan)

Based on a fiber-bundle model we investigate epicenters of breaking events in thermally activated creep rupture. Breaking events are initiated by thermal fluctuation of load followed by load redistribution which leads to an avalanche of breakings. Using recently introduced kinetic Monte Carlo algorithm for a thermally activated fiber-bundle model, it is shown that jump distance between epicenters of consecutive breaking events has a power-law distribution with a non-trivial exponent. We also discuss relations between burst size and other quantities such as jump distance of epicenters and waiting time of breaking events.