Description: This dataset provides friction data from ring-shear tests (RST) for wheat flour used as a fine-grained, cohesive analogue material for simulating brittle upper crustal rocks in the analogue labor-atory of the Institute of Geophysics of the Czech Academy of Science (IGCAS). It is characterized by means of internal friction coefficients µ and cohesion C. According to our analysis the materials show a Mohr-Coulomb behaviour characterized by a linear failure envelope. Peak friction coefficients µP of the tested material is ~0.72, dynamic friction coeffi-cients µD is ~0.67 and reactivation friction coefficients µR is ~0.70. Cohesions of the material range between 27 and 50 Pa. The material shows a minor rate-weakening of ~1.5% per ten-fold change in shear velocity v and a stick-slip behaviour at low shear velocities.
Global identifier:
Doi(
"10.5880/fidgeo.2022.016",
)
Origins: /Wissenschaft/Helmholtz-Gemeinschaft/GFZ
Tags: Weizen ? Kind ? Daten ? Cohesion ? EARTH SCIENCE > SOLID EARTH > TECTONICS ? EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > CALIBRATION/VALIDATION ? EPOS ? Force sensor ? Friction coefficient ? Iron Powder ? Multi-scale laboratories ? Ring-shear tester ? Sand > Quartz Sand ? analogue modelling results ? analogue models of geologic processes ? deformation > fracturing ? earth interior setting > crust setting > continental-crustal setting > upper continental crustal setting ? fault ? property data of analogue modelling materials ? software tools ? tectonic and structural features ?
License: cc-by/4.0
Language: Englisch/English
Issued: 2022-01-01
Time ranges: 2022-01-01 - 2022-01-01
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