Gutenberg-Richter's law in sliding friction of gels

Tetsuo Yamaguchi, Masatoshi Morishita, Masao Doi, Takane Hori, Hide Sakaguchi, Jean Paul Ampuero

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We report on experimental studies of spatio-temporally heterogeneous stick-slip motions in the sliding friction between a hard polymethyl methacrylate (PMMA, plexiglass) block and a soft poly-dimethyl siloxane (PDMS, silicone) gel plate. We perform experiments on two PDMS gels with different viscoelastic properties. For the less viscous gel, large and rapid events are preceded by an alternation of active and less active periods. For the more viscous gel, successive slow slip events take place continuously. The probability distributions of the force drop, a quantity analogous to seismic moment, obey a power law similar to Gutenberg-Richter's empirical law for the frequency-size statistics of earthquakes, and the exponents of the power law vary with the plate velocity and the viscosity of the gel. We propose a simple model to explain the dependence of the power law exponent on the plate velocity, which agrees with experimental results.

Original languageEnglish
Article numberB12306
JournalJournal of Geophysical Research: Solid Earth
Volume116
Issue number12
DOIs
Publication statusPublished - Dec 1 2011
Externally publishedYes

Fingerprint

sliding friction
sliding
Polymethyl Methacrylate
friction
gel
Gels
gels
Friction
power law
polymethyl methacrylate
Silicone Gels
Siloxanes
slip
Stick-slip
exponents
stick-slip
Probability distributions
siloxanes
seismic moment
alternations

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

Yamaguchi, T., Morishita, M., Doi, M., Hori, T., Sakaguchi, H., & Ampuero, J. P. (2011). Gutenberg-Richter's law in sliding friction of gels. Journal of Geophysical Research: Solid Earth, 116(12), [B12306]. https://doi.org/10.1029/2011JB008415

Gutenberg-Richter's law in sliding friction of gels. / Yamaguchi, Tetsuo; Morishita, Masatoshi; Doi, Masao; Hori, Takane; Sakaguchi, Hide; Ampuero, Jean Paul.

In: Journal of Geophysical Research: Solid Earth, Vol. 116, No. 12, B12306, 01.12.2011.

Research output: Contribution to journalArticle

Yamaguchi, T, Morishita, M, Doi, M, Hori, T, Sakaguchi, H & Ampuero, JP 2011, 'Gutenberg-Richter's law in sliding friction of gels', Journal of Geophysical Research: Solid Earth, vol. 116, no. 12, B12306. https://doi.org/10.1029/2011JB008415
Yamaguchi, Tetsuo ; Morishita, Masatoshi ; Doi, Masao ; Hori, Takane ; Sakaguchi, Hide ; Ampuero, Jean Paul. / Gutenberg-Richter's law in sliding friction of gels. In: Journal of Geophysical Research: Solid Earth. 2011 ; Vol. 116, No. 12.
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