Rate-and-state variable friction laws describe the time-dependent fault-normal compaction that occurs during holds in slide-hold-slide friction tests on unconsolidated materials. This time-dependent deformation is qualitatively similar to that observed during volumetric creep strain tests on unconsolidated sands and shales under hydrostatic loading conditions. To test whether rate-and-state friction laws can be used to model volumetric creep processes in unconsolidated sands, the rate-and-state formulation is expanded to include deformation under hydrostatic stress boundary conditions. Results show that the hydrostatic stress form of the rate-and-state friction law successfully describes the creep strain of unconsolidated sand. More importantly, values obtained for rate-and-state friction parameters by fitting these data are in the same range as those obtained from more traditional tests by fitting the fault-normal compaction of simulated gouge during a hold in a laboratory friction experiment.
%0 Journal Article
%1 paul2007application
%A Hagin, Paul
%A Sleep, Norman H.
%A Zoback, Mark D.
%D 2007
%I AGU
%J J. Geophys. Res.
%K compaction granular physics rateandstate
%N B5
%P B05420--
%T Application of rate-and-state friction laws to creep compaction of unconsolidated sand under hydrostatic loading conditions
%U http://dx.doi.org/10.1029/2006JB004286
%V 112
%X Rate-and-state variable friction laws describe the time-dependent fault-normal compaction that occurs during holds in slide-hold-slide friction tests on unconsolidated materials. This time-dependent deformation is qualitatively similar to that observed during volumetric creep strain tests on unconsolidated sands and shales under hydrostatic loading conditions. To test whether rate-and-state friction laws can be used to model volumetric creep processes in unconsolidated sands, the rate-and-state formulation is expanded to include deformation under hydrostatic stress boundary conditions. Results show that the hydrostatic stress form of the rate-and-state friction law successfully describes the creep strain of unconsolidated sand. More importantly, values obtained for rate-and-state friction parameters by fitting these data are in the same range as those obtained from more traditional tests by fitting the fault-normal compaction of simulated gouge during a hold in a laboratory friction experiment.
@article{paul2007application,
abstract = {Rate-and-state variable friction laws describe the time-dependent fault-normal compaction that occurs during holds in slide-hold-slide friction tests on unconsolidated materials. This time-dependent deformation is qualitatively similar to that observed during volumetric creep strain tests on unconsolidated sands and shales under hydrostatic loading conditions. To test whether rate-and-state friction laws can be used to model volumetric creep processes in unconsolidated sands, the rate-and-state formulation is expanded to include deformation under hydrostatic stress boundary conditions. Results show that the hydrostatic stress form of the rate-and-state friction law successfully describes the creep strain of unconsolidated sand. More importantly, values obtained for rate-and-state friction parameters by fitting these data are in the same range as those obtained from more traditional tests by fitting the fault-normal compaction of simulated gouge during a hold in a laboratory friction experiment.},
added-at = {2010-05-12T22:45:43.000+0200},
author = {Hagin, Paul and Sleep, Norman H. and Zoback, Mark D.},
biburl = {https://www.bibsonomy.org/bibtex/2d0d263b158787e38f9e7006a166aa51b/andreab},
interhash = {4c39926c2a857c9b928aaad9bbcafe5b},
intrahash = {d0d263b158787e38f9e7006a166aa51b},
issn = {01480227},
journal = {J. Geophys. Res.},
keywords = {compaction granular physics rateandstate},
month = {#may#},
number = {B5},
pages = {B05420--},
publisher = {AGU},
timestamp = {2010-05-12T22:45:43.000+0200},
title = {Application of rate-and-state friction laws to creep compaction of unconsolidated sand under hydrostatic loading conditions},
url = {http://dx.doi.org/10.1029/2006JB004286},
volume = 112,
year = 2007
}