Thermodynamic aspects of rock friction

N. Mitsui, P. Ván

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Rate- and state-dependent friction law for velocity-step tests is analyzed from a thermodynamic point of view. A simple macroscopic non-equilibrium thermodynamic model with a single internal variable reproduces instantaneous jump and relaxation. Velocity weakening appears as a consequence of a plasticity related nonlinear coefficient. Permanent part of displacement corresponds to plastic strain, and relaxation effects are analogous to creep in thermodynamic rheology.

Original languageEnglish
Pages (from-to)135-146
Number of pages12
JournalActa Geodaetica et Geophysica
Volume49
Issue number2
DOIs
Publication statusPublished - 2014

Fingerprint

friction
thermodynamics
Rocks
Thermodynamics
rocks
Friction
nonequilibrium thermodynamics
rheology
plastic properties
rock
plastics
Rheology
creep
Plasticity
plasticity
Plastic deformation
Creep
coefficients
plastic
rate

ASJC Scopus subject areas

  • Geology
  • Geophysics
  • Building and Construction

Cite this

Thermodynamic aspects of rock friction. / Mitsui, N.; Ván, P.

In: Acta Geodaetica et Geophysica, Vol. 49, No. 2, 2014, p. 135-146.

Research output: Contribution to journalArticle

Mitsui, N. ; Ván, P. / Thermodynamic aspects of rock friction. In: Acta Geodaetica et Geophysica. 2014 ; Vol. 49, No. 2. pp. 135-146.
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