Accession Number:

AD0787043

Title:

Torsional Shear Measurements of the Frictional Properties of Westerly Granite

Descriptive Note:

Final rept. 1 Sep 1972-31 Jul 1974

Corporate Author:

UTAH UNIV SALT LAKE CITY DEPT OF MECHANICAL ENGINEERING

Report Date:

1974-05-31

Pagination or Media Count:

49.0

Abstract:

Laboratory tests were conducted to measure the frictional properties of Westerly granite with ground surfaces. Torsional shear tests were conducted under confining pressure and axial stress. A strong dependency of the coefficient of friction on the state of stress was established, in addition to the usual dependency on normal stress. A three decade increase in the rate of shearing deformation showed no increase in coefficient of friction.

Subject Categories:

  • Geology, Geochemistry and Mineralogy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE