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Hydromechanical Modelling of an Initial Boundary Value Problem: Studies of Non-uniqueness with a Second Gradient Continuum

  • F. MarinelliEmail author
  • Y. Sieffert
  • R. Chambon
Conference paper
  • 1.5k Downloads
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

A non-uniqueness study for a hydromechanical boundary value problem is performed. A fully saturated porous medium is considered using an elasto-plastic constitutive equations to describe the mechanical behavior of the skeleton. A real hydromechanical experiment which consists in a hollow cylinder test on a Boom Clay sample is modelled. It is shown that the time step discretisation of the numerical problem has an effect on the initialisation of the Newton-Raphson algorithm on a given time step. Different solutions for the same initial boundary value problem can consequently be found.

Keywords

Shear Band Hollow Cylinder Initial Boundary Gradient Model Return Mapping Algorithm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Laboratoire 3S-R, UJF, G-INP, CNRSGrenoble Université Joseph FourierGrenoble CedexFrance

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