Yuan, R, Yu, H-S orcid.org/0000-0003-3330-1531, Zhang, J-R et al. (1 more author) (2019) Noncoaxial Theory of Plasticity Incorporating Initial Soil Anisotropy. International Journal of Geomechanics, 19 (12). 06019017. ISSN 1532-3641
Abstract
In this paper, a noncoaxial plane strain soil model is developed in the framework of initial soil strength anisotropy that is described by taking the internal friction angle to be a function of principal stress orientations. The conventional Mohr-Coulomb (M-C) yield criterion is generalized to give an anisotropic yield criterion, with the curve in the deviatoric stress space forming an ellipse. Both rotational and eccentric ellipses are discussed. The formulation of noncoaxial constitutive equations is described by a general form in terms of the plastic strain rate. In this form, the plastic strain rate is divided into two parts: the conventional component that is derived from the classical plastic potential theory and the noncoaxial component that is assumed to be tangential to the yield surface. The newly proposed model is validated by the analytical calculations and discrete element modeling (DEM) simulation results in simple shear tests. Conclusions can be drawn that this model is generally capable of capturing the DEM observations of simple shear testing.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2019 American Society of Civil Engineers. This is an author produced version of an article published in International Journal of Geomechanics. Uploaded in accordance with the publisher's self-archiving policy the final version can be found here https://doi.org/10.1061/(ASCE)GM.1943-5622.0001513 |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 12 Nov 2019 11:03 |
Last Modified: | 27 Feb 2020 16:08 |
Status: | Published |
Publisher: | American Society of Civil Engineers (ASCE) |
Identification Number: | 10.1061/(asce)gm.1943-5622.0001513 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:153316 |