Accession Number : ADP204526

Title :   An Experimental Characterization of the Non-linear Rheology of Rock,

Corporate Author : NEW ENGLAND RESEARCH INC WORCESTER MA

Personal Author(s) : Boitnott, G. N.

PDF Url : ADP204526

Report Date : 14 AUG 1995

Pagination or Media Count : 10

Abstract : A laboratory experimental program is underway to constrain rheological models for deformation of rock in the brittle-damage and moderate-strain regimes. The data will be used to assess the importance and consequences of nonlinearities in mechanical properties which affect the amplitude and spectral character of regional and teleseismic signals. Experiments are being performed to characterize the intrinsic loading path dependence of the deformation of rock subjected to various loading conditions. Cyclic loading tests in unconfined uniaxial compression, torsion, and confined compression are being conducted on a variety of lithologies under conditions expected in the moderate-strain and brittle-damage regimes of an underground explosion. The effect of ambient normal load, water saturation, and loading rate on hysteresis in deformation are being tested directly.

Descriptors :   *SEISMIC DETECTION, *SEISMIC WAVES, *ARMS CONTROL, *NUCLEAR EXPLOSION DETECTION, STRESS STRAIN RELATIONS, SYMPOSIA, VERIFICATION, MONITORING, DEFORMATION, UNDERGROUND EXPLOSIONS, STRAIN(MECHANICS), ROCK MECHANICS, NUCLEAR EXPLOSION TESTING, BRITTLENESS, RHEOLOGY, SEISMIC DISCRIMINATION, TREATIES, TORSION, CYCLIC TESTS, LITHOLOGY.

Subject Categories : Government and Political Science
      Geology, Geochemistry and Mineralogy
      Seismology
      Seismic Detection and Detectors
      Nuclear Weapons

Distribution Statement : APPROVED FOR PUBLIC RELEASE