Statistics
Scientific paper
Sep 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.3365t&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 17, p. 3365-3368
Statistics
9
Global Change: Solid Earth
Scientific paper
Tri-axial compression tests of dry granites with a pre-cut shear surface were conducted with an electrode to detect electrical potential. The samples were shaped 19.5 mm in diameter and 60 mm in length, and deformed at a strain rate of 10-3s-1 and confining pressure of 78.5 MPa. Pulse-like electrode voltage changes were detected several times just before (0.5-5 ms) stick-slip motion during compression. Magnitudes of stick-slips (e.g. normal stress drop of 5-160 MPa) and intensities of electrode voltage changes (0.1-10 V) increased whenever stick-slip occurred. Here we propose some scaling laws on the number of stick-slips and relate those statistics to the intensity of the electrical phenomena. Maximum electrode voltage change is proportional to normal stress drop that depends on real contact area of the slip plane. Local charge distributions, fractoemission or both may due to failure of asperities just before stick-slip.
Nagahama Hiroyuki
Takeuchi Akihiro
No associations
LandOfFree
Voltage changes induced by stick-slip of granites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Voltage changes induced by stick-slip of granites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage changes induced by stick-slip of granites will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1490307