On the micro mechanics of yielding and hardening of crushable granular soilsTools de Bono, John P. and McDowell, Glenn R. (2018) On the micro mechanics of yielding and hardening of crushable granular soils. Computers and Geotechnics, 97 . pp. 167-188. ISSN 1873-7633 Full text not available from this repository.AbstractStress path tests are used to investigate the yield surface of a crushable numerical soil. Triaxial samples with isotropic and anisotropic stress histories are examined to determine the nature of the yield surface and to establish what governs yield. Two separate yield surfaces are exposed: a shear yield surface at low p’ and high η which is governed by minor breakage of fine particles, and a compressive yield surface at high p’ and low η, governed by bulk breakage across all particle sizes. The shear yield surface is dependent on stress history, whilst the compressive yield surface is isotropic.
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