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Avalanche precursors of failure in hierarchical fuse networks.


ABSTRACT: 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.

SUBMITTER: Moretti P 

PROVIDER: S-EPMC6092438 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Avalanche precursors of failure in hierarchical fuse networks.

Moretti Paolo P   Dietemann Bastien B   Esfandiary Nosaibeh N   Zaiser Michael M  

Scientific reports 20180814 1


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-la  ...[more]

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