Analytical and numerical investigation of uniqueness and localization in saturated porous media

H. W. Zhang, B. A. Schrefler

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

This paper presents first the applications of uniqueness and strain localization analysis of saturated porous media, where localization of deformation into well defined narrow zones in a saturated porous medium is studied in terms of discontinuous bifurcation theory. A generalized plasticity constitutive model and a Mohr-Coulomb model are used in both the theoritical and numerical analyses of shear band formations. The critical hardening moduli and shear band angle for localization are computed, and quantitative results are given for both constitutive models. Numerical results previously obtained and new ones are confirmed by this analytical and numerical investigation.

Original languageEnglish (US)
Pages (from-to)1429-1448
Number of pages20
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Volume26
Issue number14
DOIs
StatePublished - Dec 10 2002

Keywords

  • Generalised plasticity
  • Saturated porous medium
  • Strain localization
  • Uniqueness analysis

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Materials Science(all)
  • Mechanics of Materials
  • Computational Mechanics

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