Influence of particle characteristics on granular friction

  title={Influence of particle characteristics on granular friction},
  author={Jennifer L. Anthony and Chris J. Marone},
[1] We report on laboratory experiments designed to illuminate grain-scale deformation mechanisms within fault gouge. We vary particle size distribution, grain and surface roughness, and gouge layer thickness to better understand how grain sliding, rolling, dilation, and compaction affect the strength and stability of granular fault gouge. The experiments employed the double direct shear testing geometry and were run at room temperature, controlled humidity, and shearing rates from 0.1 to 3000… CONTINUE READING