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Investigating the Frictional Response of Granitic Rock Surface: An Experimental Approach

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Title Investigating the Frictional Response of Granitic Rock Surface: An Experimental Approach
 
Creator VISHAL, V
DAS, R
SINGH, TN
 
Subject Rock frictional behaviour
stick slip motion
steady motion
frictional constants
TIME-DEPENDENT FRICTION
ASPERITY INDENTATION
STICK-SLIP
 
Description Rock friction varies as a function of mainly four parameters that are waiting time and velocity of motion between two frictional surfaces, surface roughness and normal stress. In this paper, a study on former two aspects of rock frictional behaviour has been attempted for granitic rock surface. In one experiment, waiting time for which the two surfaces remain in contact is increased from 20 seconds to 18 hours. In the second experiment, waiting time is kept constant for a series of rock slip experiments where the velocity is increased from 10 mu m/sec to 350 mu m/sec. The value of critical velocity is obtained from transformation of the stick slip motion to steady motion occurs. The relation of coefficients of dynamic and static friction with increasing velocity of motion is studied and these are used to calculate the frictional constants, namely 'a' and 'b' specific to the chosen simulation type.
 
Publisher SPRINGER INDIA
 
Date 2014-10-14T12:54:41Z
2014-10-14T12:54:41Z
2012
 
Type Article
 
Identifier JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA, 80(4)493-498
http://dspace.library.iitb.ac.in/jspui/handle/100/14456
 
Language en