... the dependence of stiffness on applied triaxial stress amplitude. Results show that for almost all tested rocks, Young’s modulus and Poisson’s ratio are dependent on stress change during triaxial loading/unloading well before reaching plastic yield. In order to study the factors influencing non-elastic processes...

... of peak strength and elastic properties (Young's modulus and Poisson's ratio), as measured through unconfined or confined (triaxial) testing. However, with the advent of stiff, servo-controlled loading frames able to collect accurate post-peak data during triaxial tests, it is also possible to estimate...

... to experimental constraints it was not clear if the model would be valid down to strain amplitudes of acoustic waves. We have performed an experiment on undrained, water-saturated Castlegate sandstone, combining a quasi-static triaxial test with force-oscillation measurements at seismic frequency in order...

... Abstract: This paper presents the results of a series of injection experiments carried out on basaltic tuff cores from the Newberry geothermal field. A combination of triaxial and injection experiments were performed on the cores to characterize their goemechanical properties and to better...

..., anisotropy, viscoplasticity, and micro to macro scale joints and fractures [7]. ARMA 09-024 Physical and Numerical Investigation of a Cemented Granular Assembly under Uniaxial and Triaxial Compression Akram, M. S*. University of New South Wales, Sydney, NSW, Australia *Institute of Geology, University...