文章基本信息

标题：Avalanche precursors of failure in hierarchical fuse networks
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作者：Paolo Moretti ; Bastien Dietemann ; Nosaibeh Esfandiary 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2018
卷号：8
期号：1
页码：12090
DOI：10.1038/s41598-018-30539-x
语种：English
出版社：Springer Nature
摘要：We study precursors of failure in hierarchical random fuse network models which can be considered as idealizations of hierarchical (bio)materials where fibrous assemblies are held together by multi-level (hierarchical) cross-links. When such structures are loaded towards failure, the patterns of precursory avalanche activity exhibit generic scale invariance: irrespective of load, precursor activity is characterized by power-law avalanche size distributions without apparent cut-off, with power-law exponents that decrease continuously with increasing load. This failure behavior and the ensuing super-rough crack morphology differ significantly from the findings in non-hierarchical structures.