Record Details

Simulation of Frictional Strength and Steady Relaxation Using the Rate and State Dependent Friction Model

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Simulation of Frictional Strength and Steady Relaxation Using the Rate and State Dependent Friction Model
 
Creator SINGH, AK
SINGH, TN
 
Subject SLIP NUCLEATION PROCESS
FREEDOM ELASTIC SYSTEM
SINGLE DEGREE
STRAIN-RATE
STICK-SLIP
STABILITY
INTERFACE
SHEAR
DYNAMICS
SOLIDS
 
Description In this paper, frictional strength of hard solids, such as rock-rock sliding surfaces, is studied as a function of waiting time and shearing velocity. A one dimensional spring-mass sliding system is numerically simulated under the quasistatic condition using the rate and state dependent friction model. It is established that frictional strength varies linearly with the logarithm of waiting time (also known as time of stationary contact or relaxation time, etc.) as well as logarithm of shearing velocity. Analytical expression developed for frictional strength is found to be valid only in the case of high stiffness of the connecting spring. In the steady relaxation simulation, a steadily sliding mass is suddenly brought to zero velocity and relaxation of the interfacial stress and corresponding velocity at the sliding interface is studied as a function of relaxation time in the velocity strengthening regime of friction. A mathematical relation is derived between state variable and waiting time using the concept of steady relaxation. The relaxation model is also compared with the experimental data from the literature. Finally, the present study enables one to unify the slide-hold-slide friction experiments.
 
Publisher SPRINGER BASEL AG
 
Date 2014-10-15T08:13:00Z
2014-10-15T08:13:00Z
2013
 
Type Article
 
Identifier PURE AND APPLIED GEOPHYSICS, 170(3)247-257
http://dx.doi.org/10.1007/s00024-012-0493-5
http://dspace.library.iitb.ac.in/jspui/handle/100/14653
 
Language en