Title
Barodesy (Kolymbas, Medicus, Schneider-Muntau, Fellin)
Description
Barodesy is a constitutive model for granular media and does not use standard notations of elasto-plasticity, e.g. yield function, flow rule or plastic potential. Barodesy is formulated (like hypoplasticity) in one single rate equation to describe incremental soil response, i.e. the objective stress rate as a function of the actual effective Cauchy stress, the stretching and the void ratio. The User Subroutine is developed for barodesy for clay according to Medicus and Fellin (2017). Applications of the ABAQUS User Subroutine have been published in Schneider-Muntau et al. (2017) and Schneider-Muntau et al. (2017).
References
Fellin, W. Ostermann, A. (2002) Consistent tangent operators for constitutive rate-equations. International Journal for Numerical and Analytical Methods in Geomechanics 26(12): 1213-1233 [Preprint] 293.97 KB
Fellin, W., Ostermann, A. (2013) The critical state behaviour of barodesy compared with the Matsuoka–Nakai failure criterion. International Journal for Numerical and Analytical Methods in Geomechanics 37: 299 - 308 [Preprint] 252.12 KB
Kolymbas, D. (2015) Introduction to barodesy, Géotechnique 65(13): 52–65 [Preprint] 883.39 KB
Medicus, G. and Fellin, W. (2017) An improved version of barodesy for clay. Acta Geotechnica 12(2): 365–376 [Preprint] 504.69 KB
Medicus, G., Kolymbas, D. and Fellin, W. (2016) Proportional stress and strain paths in barodesy. International Journal for Numerical and Analytical Methods in Geomechanics 40(4): 509–522 [Preprint] 719.96 KB
Simulation Software Offering This Model
The Abaqus Unified FEA product suite offers powerful and complete solutions for both routine and sophisticated engineering problems covering a vast spectrum of industrial applications.
PLAXIS 2D and 3D are powerful and user friendly finite element package intended for two-dimensional and three-dimensional analyses of deformation and stability in geotechnical engineering and rock mechanics.
Tochnog Professional is a Finite Element program offering a wide variety of geotechnical and mechanical options; modern material laws including the most recent rate independent and viscous hypoplasticity models.
Calibration Software Offering This Model
Triax is an inhouse element test constitutive model driver developed since 2001 at Charles University and elsewhere by David Mašín and coworkers. It covers wide range of constitutive models and testing conditions.
The SoilTest option is a quick and convenient procedure to simulate basic soil lab tests. It also offers the possibility to optimise model parameters. It works for any model, both standard soil models as well as user-defined models.
Incremental Driver is a single element code developed by Andrzej Niemunis (2007, 2014) for running element tests using constitutive models implemented in umat format.
A dedicated special purpose incremental driver which is able to calculate the results of homogeneous experiments. Both displacement controlled and force controlled experiments can be performed.
Related Downloads
Download package of barodesy model. Contains ABAQUS umat (source code), Plaxis UDSM (dll files only, not source code), package documentation, related journal publications, Abaqus and Plaxis examples.
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Related SoilModels Forum Posts
SoilModels News – Barodesy, Incremental Driver update, post views count and ExCalibre input files
||SoilModels News|0 |
Number of interesting news at SoilModels from past week: New Barodesy constitutive model, umat with source code and Plaxis DLL. Thanks to the researchers from the University of Innsbruck (Barbara […]
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