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| Titel |
Topological complexity of frictional interfaces: friction networks |
| VerfasserIn |
H. O. Ghaffari, R. P. Young |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 19, no. 2 ; Nr. 19, no. 2 (2012-03-26), S.215-225 |
| Datensatznummer |
250014189
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| Publikation (Nr.) |
 copernicus.org/npg-19-215-2012.pdf |
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| Zusammenfassung |
| Through research conducted in this study, a network approach to the
correlation patterns of void spaces in rough fractures (crack type II) was
developed. We characterized friction networks with several networks
characteristics. The correlation among network properties with the fracture
permeability is the result of friction networks. The revealed hubs in the
complex aperture networks confirmed the importance of highly correlated
groups to conduct the highlighted features of the dynamical aperture field.
We found that there is a universal power law between the nodes' degree and
motifs frequency (for triangles it reads T(k) ∝ kβ (β ≈ 2 ± 0.3)). The investigation of localization effects on
eigenvectors shows a remarkable difference in parallel and perpendicular
aperture patches. Furthermore, we estimate the rate of stored energy in
asperities so that we found that the rate of radiated energy is higher in
parallel friction networks than it is in transverse directions. The final
part of our research highlights 4 point sub-graph distribution and its
correlation with fluid flow. For shear rupture, we observed a similar trend
in sub-graph distribution, resulting from parallel and transversal aperture
profiles (a superfamily phenomenon). |
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