TY - JOUR EP - 2910 ID - eprints1936 UR - http://www.sciencedirect.com/science/article/pii/S0020768304005670 KW - Friction; Contact; Fractals; Geomechanics; Scale effects AV - none TI - Size-scale effects on the friction coefficient N2 - An overview of the classical friction laws holding at the macro-scale and the new developments at the nano-level are proposed. Furthermore, two opposite phenomena are addressed: the former concerning the apparent weakness of the San Andreas fault, the latter regarding the strong frictional behavior which appears at the nano-scale. An interpretation of these size effects on the friction coefficient is attempted making use of the renormalization group procedure which allows to explain the frictional phenomena over all the scales. SN - 0020-7683 VL - 42 JF - International Journal of Solids and Structures IS - 9?10 Y1 - 2005/// SP - 2901 PB - Elsevier A1 - Carpinteri, Alberto A1 - Paggi, Marco ER -