Stress-Wave Experiments on Selected Crustal Rocks and Minerals

摘要

Large amplitude compressive stress-wave experiments on selected crustal rocks and minerals have been performed. The materials studied included Vermont marble, Blair dolomite, Oakhall limestone, z-cut calcite and oil shale. In each case specific constitutive features were studied. These features included interrelation of plastic yielding and phase transformation, rate dependent plastic flow, dilatancy under dynamic loading conditions, and energy dissipation at stress amplitudes below measured Hugoniot elastic limits. A new experimental method using in-material mutual-inductance magnetic gauges is also described. (ERA citation 08:057757)