A complex systems analysis of stick-slip dynamics of a laboratory fault.

Published

Journal Article

We study the stick-slip behavior of a granular bed of photoelastic disks sheared by a rough slider pulled along the surface. Time series of a proxy for granular friction are examined using complex systems methods to characterize the observed stick-slip dynamics of this laboratory fault. Nonlinear surrogate time series methods show that the stick-slip behavior appears more complex than a periodic dynamics description. Phase space embedding methods show that the dynamics can be locally captured within a four to six dimensional subspace. These slider time series also provide an experimental test for recent complex network methods. Phase space networks, constructed by connecting nearby phase space points, proved useful in capturing the key features of the dynamics. In particular, network communities could be associated to slip events and the ranking of small network subgraphs exhibited a heretofore unreported ordering.

Full Text

Cited Authors

  • Walker, DM; Tordesillas, A; Small, M; Behringer, RP; Tse, CK

Published Date

  • March 2014

Published In

Volume / Issue

  • 24 / 1

Start / End Page

  • 013132 -

PubMed ID

  • 24697394

Pubmed Central ID

  • 24697394

Electronic International Standard Serial Number (EISSN)

  • 1089-7682

International Standard Serial Number (ISSN)

  • 1054-1500

Digital Object Identifier (DOI)

  • 10.1063/1.4868275

Language

  • eng