Ring-shear test data of wheat flour used for analogue experiments in the 
laboratory of the Institute of Geophysics of the Czech Academy of Science, 
Prague

Warsitzka, Michael; Zavada, Prokop; Rosenau, M.

doi:10.5880/fidgeo.2022.016

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Ring-shear test data of wheat flour used for analogue experiments in the laboratory of the Institute of Geophysics of the Czech Academy of Science, Prague

Urheber*innen

Warsitzka, Michael
External Organizations;

Zavada, Prokop
External Organizations;

/persons/resource/rosen

Rosenau, M.
4.1 Lithosphere Dynamics, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Zitation

Warsitzka, M., Zavada, P., Rosenau, M. (2022): Ring-shear test data of wheat flour used for analogue experiments in the laboratory of the Institute of Geophysics of the Czech Academy of Science, Prague.
https://doi.org/10.5880/fidgeo.2022.016

Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5011169

Zusammenfassung

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.