Equation of State Investigations of Geologic Materials.
Technical rept. 1 Apr 93-31 Jan 94,
KTECH CORP ALBUQUERQUE NM
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This report documents the results of dynamic material response tests of 5 rock and 2 grouts that were performed in support of DNAs HYDROPLUS yield verification program. Pennsylvania slate, Maine slate, thawed permafrost phyllite, SHIST granite, Sierra White granite, HSG-14 grout and a granite grout were characterized in the stress range of 0.5 to 15 GPa by the derivation of Hugoniot data and by loading and release paths calculated from Lagrangian analyses of in situ stress gauge measurements. The anisotropic response of the Pennsylvania and Maine Slates was quantified. An inflection in the Hugoniot of thawed permafrost Phyllite was detected at a stress of 14.8 GPa and particle velocity of 0.95 kms. The HSGA and granite grouts each show dispersive wave propagation characteristics at low stresses 2 GPa. Transmitted wave profile measurements in SHIST and Sierra White granites also showed a dispersive ramp loading at low stresses. Evidence of a yield or phase transition beginning at 6 GPa and stiffening at about 10 GPa was observed in SHIST granite. A two wave structure was seen at 13.4 GPa. The Sierra White granite high stress data are consistent with the inflection in the SHIST granite Hugoniot at 10 GPa. MM
- Geology, Geochemistry and Mineralogy
- Ceramics, Refractories and Glass
- Nuclear Weapons