Finite element modelling of shear bands in porous media by means of non-local viscoplasticity

Maria Lazari, Lorenzo Sanavia, Bernhard A.schrefler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This work presents a consistent numerical approach in the framework of analyzing the localization process in a slope stability problem. An already existing model, embedded in Mechanics of multiphase porous media, is enhanced with local and non-local elasto-viscoplastic constitutive models to obtain regularized numerical solutions. The initiation and the propagation of the shear band are effectively described by means of FEM analysis, regardless of the mesh size adopted. The strain localization process realistically occurs within the shear band failure mode and its size is governed by the internal length variable, which can be directly estimated by experimental approaches.

Original languageEnglish (US)
Title of host publicationProceedings of the 8th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2015
PublisherInternational Center for Numerical Methods in Engineering
Pages140-150
Number of pages11
ISBN (Print)9788494424465
StatePublished - 2015
Event13th International Conference on Computational Plasticity, COMPLAS 2015 - Barcelona, Spain
Duration: Sep 1 2015Sep 3 2015

Other

Other13th International Conference on Computational Plasticity, COMPLAS 2015
CountrySpain
CityBarcelona
Period9/1/159/3/15

Keywords

  • Non-local approach
  • Porous media
  • Shear bands
  • Viscoplasticity

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Theoretical Computer Science

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