2. Micromechanics of granular materials
2.1 Contact and contact friction
The rheology of geomaterials is largely based on dry friction between two particles or grains. Dry friction is therefore a basic ingredient of the contact laws taken into account when describing geomaterials on a small scale.
The difference between dynamic friction (once sliding has been triggered) is smaller than the static friction angle (friction mobilized to trigger sliding). However, the numerical results show that the rheology of geomaterials...
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Micromechanics of granular materials
MED: discrete numerical model of granular materials
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