Failure criterion with intermediate stress and two friction angles

Published on Jan 1, 2016
Joseph F. Labuz32
Estimated H-index: 32
,
Roman Y. Makhnenko12
Estimated H-index: 12
(EPFL: École Polytechnique Fédérale de Lausanne),
J. T. Harvieux1
Estimated H-index: 1
(Stanford University)
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#1Xiaodong Ma (Stanford University)H-Index: 9
#2John W. Rudnicki (NU: Northwestern University)H-Index: 39
Last. Bezalel C. Haimson (UW: University of Wisconsin-Madison)H-Index: 31
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We performed an extensive suite of true triaxial experiments in two porous sandstones, Bentheim (porosity ≈ 24%) and Coconino (17%). The experiments were conducted using a novel loading path, which maintains constant Lode angle (Θ) throughout the test. This path enabled the examination of the effects of Lode angle and mean stress on failure (σoct,f). Our tests covered σ3 magnitudes between 0 and 150 MPa and of Θ at −30° (axisymmetric extension), −16°, 0°, +11°, +21°, and +30° (axisymmetric compr...
31 CitationsSource