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Non-stationary anisotropy-dependent critical state for clays
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Dejaloud, Hesam, Rezania, Mohammad and Khalili, Nasser (2023) Non-stationary anisotropy-dependent critical state for clays. Géotechnique . pp. 1-44. doi:10.1680/jgeot.22.00284 ISSN 0016-8505. (In Press)
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Official URL: https://doi.org/10.1680/jgeot.22.00284
Abstract
In this paper, the effect of fabric anisotropy on the critical state behaviour of clays is investigated. An original concept of moving critical state is elaborated by a novel state parameter-based rotational hardening rule that is subsequently used to formulate a complete anisotropic elastoplastic constitutive model for clays. It is shown that some of the distinctive pre-failure and critical state responses of clays can be explained by adopting a non-stationary critical state line. Furthermore, an enhanced definition for the state of the soil is proposed that provides a more realistic correspondence between the shearing behaviour of an overconsolidated clay to its initial consolidation state. The proposed model is validated by simulating the experimental data from triaxial tests on a number of clays.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Clay -- Analysis, Clay soils -- Testing, Clay -- Plastic properties, Soil mechanics | ||||||||
Journal or Publication Title: | Géotechnique | ||||||||
Publisher: | ICE Publishing | ||||||||
ISSN: | 0016-8505 | ||||||||
Official Date: | 28 September 2023 | ||||||||
Dates: |
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Page Range: | pp. 1-44 | ||||||||
DOI: | 10.1680/jgeot.22.00284 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | In Press | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Copyright Holders: | ICE Publishing | ||||||||
Date of first compliant deposit: | 6 October 2023 | ||||||||
RIOXX Funder/Project Grant: |
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