Micro mechanics of the critical state line at high stresses

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de Bono, John P. and McDowell, Glenn R. (2018) Micro mechanics of the critical state line at high stresses. Computers and Geotechnics, 98 . pp. 181-188. ISSN 1873-7633

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Official URL: https://www.sciencedirect.com/science/article/pii/S0266352X18300521

Abstract

A critical state line is presented for a crushable numerical soil, which is parallel to the isotropic normal compression line. A previous theory for the normal compression line, which correctly predicts the slope as a function of the size-effect on particle strength is extended to justify the slope of the critical state line. The micro mechanics behind critical states are examined, leading to a theory for a relationship between the volume of smallest particles and mean effective stress. A unique relationship exists for crushed states, leading to a two-dimensional interpretation of the state boundary surface for soils looser than critical.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/935646
Keywords:	Discrete element method; DEM; Particle crushing; Critical state line; State boundary surface
Schools/Departments:	University of Nottingham, UK > Faculty of Engineering > Department of Civil Engineering
Identification Number:	10.1016/j.compgeo.2018.02.016
Depositing User:	Eprints, Support
Date Deposited:	22 Feb 2018 11:27
Last Modified:	04 May 2020 19:38
URI:	https://eprints.nottingham.ac.uk/id/eprint/49940

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