Fracture precursors in disordered systems
材料科学
2007-05-23 v1 无序系统与神经网络
统计力学
摘要
A two-dimensional lattice model with bond disorder is used to investigate the fracture behaviour under stress-controlled conditions. Although the cumulative energy of precursors does not diverge at the critical point, its derivative with respect to the control parameter (reduced stress) exhibits a singular behaviour. Our results are nevertheless compatible with previous experimental findings, if one restricts the comparison to the (limited) range accessible in the experiment. A power-law avalanche distribution is also found with an exponent close to the experimental values.
引用
@article{arxiv.cond-mat/0310103,
title = {Fracture precursors in disordered systems},
author = {G. Meacci and A. Politi and M. Zei},
journal= {arXiv preprint arXiv:cond-mat/0310103},
year = {2007}
}
备注
4 pages, 5 figures. Submitted to Europhysics Letters