On the micro mechanics of yielding and hardening of crushable granular soils

Stress 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...

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Main Authors: de Bono, John P., McDowell, Glenn R.
Format: Article
Published: Elsevier 2018
Subjects:
Online Access:https://eprints.nottingham.ac.uk/49291/
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author de Bono, John P.
McDowell, Glenn R.
author_facet de Bono, John P.
McDowell, Glenn R.
author_sort de Bono, John P.
building Nottingham Research Data Repository
collection Online Access
description Stress 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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spelling nottingham-492912020-05-04T19:51:42Z https://eprints.nottingham.ac.uk/49291/ On the micro mechanics of yielding and hardening of crushable granular soils de Bono, John P. McDowell, Glenn R. Stress 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. Elsevier 2018-05 Article PeerReviewed 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 Discrete element method; DEM; Sand; Yielding; Yield surface https://www.sciencedirect.com/science/article/pii/S0266352X1830020X doi:10.1016/j.compgeo.2018.01.010 doi:10.1016/j.compgeo.2018.01.010
spellingShingle Discrete element method; DEM; Sand; Yielding; Yield surface
de Bono, John P.
McDowell, Glenn R.
On the micro mechanics of yielding and hardening of crushable granular soils
title On the micro mechanics of yielding and hardening of crushable granular soils
title_full On the micro mechanics of yielding and hardening of crushable granular soils
title_fullStr On the micro mechanics of yielding and hardening of crushable granular soils
title_full_unstemmed On the micro mechanics of yielding and hardening of crushable granular soils
title_short On the micro mechanics of yielding and hardening of crushable granular soils
title_sort on the micro mechanics of yielding and hardening of crushable granular soils
topic Discrete element method; DEM; Sand; Yielding; Yield surface
url https://eprints.nottingham.ac.uk/49291/
https://eprints.nottingham.ac.uk/49291/
https://eprints.nottingham.ac.uk/49291/