Geodetic studies of subduction megathrusts have shown that the pattern of interseismic strain is heterogeneous, varying between locked seismic and creeping aseismic sections. Paleoseismology reveals that large earthquakes have occurred repeatedly on the same section, implying that variability in interface frictional properties are long-term features. Based on stick-slip frictional laws this in ...

the influence of surface roughness magnitude and direction on dry static friction coefficient between two similar steel samples has been studied through an experiment. a testing apparatus has been designed and fabricated to measure the friction coefficient for a few forms of surface asperity. according to the results of the experiments, dry friction coefficient is affected by both magnitude and...

The granular jamming transition is experimentally investigated in a two-dimensional system of frictional, bidispersed disks subject to quasistatic, uniaxial compression without vibrational disturbances (zero granular temperature). Three primary results are presented in this experimental study. First, using disks with different static friction coefficients (μ), we experimentally verify numerical...

Effective modeling and control of multibody systems interacting with their environment through frictional contact remains a challenging problem. In this paper, we address the planar version of this problem by developing a general method to compute the instantaneous dynamic solution for planar rigid bodies interacting with their environment through Coulomb frictional contacts. The resulting anal...

Earthquakes have been recognized as resulting from a stick-slip frictional instability along the faults between deformable rocks. An arbitrarily shaped contact element strategy, named as node-to-point contact element strategy, is proposed and applied with the static-explicit characters to handle the friction contact between deformable bodies with stick and finite frictional slip and extended he...

In this note, we determine the stability boundary for the thermoelastic contact of a rectangular elastic block sliding against a rigid wall in the presence of a pressure-dependent thermal contact resistance. This geometry can be seen as intermediate between the idealized ‘Aldo’ rod model and continuum solutions for the elastic half-plane. The solution is obtained by comparing the expression for...

This study is motivated by the need to understand the elastodynamic response of belts in frictional contact with pulleys. To this end, a simplified model for belt~pulley contact is used to investigate the dynamic response of a belt subject to a train of harmonic tension waves. Through a nondimensionalization, a single dimensionless parameter f~ is identified which governs the dynamic response. ...