TY - JOUR
T1 - Investigating the frictional response of granitic rock surface
T2 - An experimental approach
AU - Vishal, Vikram
AU - Das, Raktim
AU - Singh, T. N.
PY - 2012/10
Y1 - 2012/10
N2 - 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 10μm/sec to 350μm/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.
AB - 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 10μm/sec to 350μm/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.
KW - Frictional constants
KW - Rock frictional behaviour
KW - Steady motion
KW - Stick slip motion
UR - http://www.scopus.com/inward/record.url?scp=84871523591&partnerID=8YFLogxK
U2 - 10.1007/s12594-012-0168-y
DO - 10.1007/s12594-012-0168-y
M3 - Article
AN - SCOPUS:84871523591
SN - 0016-7622
VL - 80
SP - 493
EP - 498
JO - Journal of the Geological Society of India
JF - Journal of the Geological Society of India
IS - 4
ER -