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Double image stress point bounding surface model for monotonic and cyclic loading on anisotropic clays
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Dejaloud, Hesam and Rezania, Mohammad (2023) Double image stress point bounding surface model for monotonic and cyclic loading on anisotropic clays. Acta Geotechnica, 18 . pp. 2427-2456. doi:10.1007/s11440-022-01705-3 ISSN 1861-1125.
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Official URL: https://doi.org/10.1007/s11440-022-01705-3
Abstract
In this paper, an anisotropic non-associative constitutive model, based on the well-established critical state soil mechanics framework, is developed for the natural and reconstituted clays subjected to monotonic and cyclic loadings. A robust non-elliptical yield surface is implemented in the model which enables it to capture a wide variety of yield stress points. In addition to a realistic soil stiffness simulation, the employed flexible plastic potential surface equips the proposed model to predict a more accurate coefficient of earth pressure at rest. The model uses a combination of conventional volumetric and comprehensive rotational hardening rules to control the evolution of the yield surface caused by plastic strain increments. The adopted rotational hardening rule uses the concept of governing plastic strain increment which not only ensures the existence of the equilibrium state of anisotropy but also takes the effect of plastic strains at different constant stress ratios into account more sensibly. The proposed model is enhanced with a novel double-image stress point bounding surface plasticity type theory to capture nonlinear behaviour inside the yield surface, and also to simulate the cyclic responses. The detailed model formulation is discussed in both triaxial stress space and the
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Anisotropy, Anisotropy -- Mathematical models , Soil mechanics, Clay, Clay -- Surfaces | ||||||||
Journal or Publication Title: | Acta Geotechnica | ||||||||
Publisher: | Springer UK | ||||||||
ISSN: | 1861-1125 | ||||||||
Official Date: | May 2023 | ||||||||
Dates: |
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Volume: | 18 | ||||||||
Page Range: | pp. 2427-2456 | ||||||||
DOI: | 10.1007/s11440-022-01705-3 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 10 November 2022 | ||||||||
Date of first compliant Open Access: | 10 November 2022 | ||||||||
RIOXX Funder/Project Grant: |
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