Accession Number : AD0710820

Title :   CONSTITUTIVE EQUATIONS FOR WESTERLY GRANITE AND CEDAR CITY TONALITE FOR A VARIETY OF LOADING CONDITIONS.

Descriptive Note : Final rept.,

Corporate Author : UTAH UNIV SALT LAKE CITY DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Brown,W. S. ; Swanson,S. R.

Report Date : MAR 1970

Pagination or Media Count : 119

Abstract : The report describes experimental and analytical work performed on several rocks to determine stress-strain behavior and fracture strength under carefully controlled loading conditions. Constitutive relations for two of the rocks, Cedar City tonalite and Westerly granite, are presented which are valid for a variety of loading conditions including hydrostatic compression, uniaxial stress, uniaxial strain, a family of constant confining pressure tests and a family of proportional loading tests in which the ratio of the radial to axial stress was held constant during a test. Apparatus specially constructed for the test program is also described. (Author)

Descriptors :   (*ROCK, FRACTURE(MECHANICS)), (*UNDERGROUND STRUCTURES, DESIGN), STRAIN(MECHANICS), GRANITE, LOADS(FORCES), COMPRESSIVE PROPERTIES, HYDROSTATIC PRESSURE, STRAIN GAGES, ELASTIC PROPERTIES, CRACKS, FAILURE(MECHANICS), MATHEMATICAL MODELS

Subject Categories : Geology, Geochemistry and Mineralogy
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE