Influence of micro-roughness on the frictional behavior and wear response of planar saw-cut rock sur

Pérez-Rey I., F.G. Bastante, L.R. Alejano and D. Mas Ivars. (2020) Influence of micro-roughness on the frictional behavior and wear response of planar saw-cut rock surfaces. International Journal of Geomechanics 20(8): 04020118  (external page).

Saw-cut rock surfaces, classically utilized to estimate basic friction angle of discontinuities by means of tilt test and other procedures, may seem planar to the naked eye. Nevertheless, they actually present roughness at a micrometric scale. Aiming at characterizing some of these saw-cut rock surfaces and assessing the possible implications between their microscale topography and the resulting tribological behavior, the authors of this study resorted to the 3D focus-variation technique to analyze different surface-texture parameters.