Professor William Coombs w.m.coombs@durham.ac.uk
Professor
Continuously unique anisotropic Critical State hyperplasticity
Coombs, W.M.
Authors
Abstract
This paper presents the theoretical development and methodological motivation of a single surface anisotropic hyperplasticity model. The model extends the isotropic family of models developed by Coombs and Crouch by: (i) introducing anisotropic shearing into the yield surface, (ii) relating two of the material constants to a single physical quantity and (iii) using a more physically realistic pressure sensitive elastic free energy function. This model overcomes the difficulty of determining the constants of the isotropic two-parameter surface by analytically relating them to a single experimentally measurable physical quantity, namely the normalised hydrostatic position of the Critical State. This provides a model with a Critical State surface that is constant throughout the loading process, invariant of the level of anisotropy inherent in the yield envelope. The model is compared with experimental data from triaxial tests on Lower Cromer Till, contrasted against the SANIclay model and the recent model of Yang et al. (2015) as well as being compared with rarely considered experimental data from hollow cylinder tests on London Clay.
Citation
Coombs, W. (2017). Continuously unique anisotropic Critical State hyperplasticity. International Journal for Numerical and Analytical Methods in Geomechanics, 41(4), 578-601. https://doi.org/10.1002/nag.2571
Journal Article Type | Article |
---|---|
Acceptance Date | Jul 28, 2016 |
Online Publication Date | Aug 20, 2016 |
Publication Date | Mar 1, 2017 |
Deposit Date | Jul 28, 2016 |
Publicly Available Date | Aug 20, 2017 |
Journal | International Journal for Numerical and Analytical Methods in Geomechanics |
Print ISSN | 0363-9061 |
Electronic ISSN | 1096-9853 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 41 |
Issue | 4 |
Pages | 578-601 |
DOI | https://doi.org/10.1002/nag.2571 |
Files
Accepted Journal Article
(1.7 Mb)
PDF
Copyright Statement
This is the accepted version of the following article: Coombs, W. M. (2017) Continuously unique anisotropic critical state hyperplasticity. IInternational Journal for Numerical and Analytical Methods in Geomechanics, 41(4): 578-601, which has been published in final form at https://doi.org/10.1002/nag.2571. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
International journal for numerical and analytical methods in geomechanics.
You might also like
On the development of a material point method compatible arc length solver for large deformation solid mechanics
(2023)
Conference Proceeding
An open-source Julia code for geotechnical MPM
(2023)
Conference Proceeding
A ghost-stabilised material point method for large deformation geotechnical analysis
(2023)
Conference Proceeding
Cone Penetration Tests (CPTs) in layered soils: a Material Point approach
(2023)
Conference Proceeding
An implicit Material Point Method for micropolar solids undergoing large deformations
(2023)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search