Research Output
Quantifying stress-induced anisotropy using inter-void constrictions
  In particulate geomechanics it is common to quantify fabric anisotropy using contact and particle orientations. Measurement of void anisotropy is less common, most likely owing to the difficulties associated with defining individual voids. Here a Delaunay tessellation-based approach is applied to measure anisotropy of the inter-void constriction orientations. This new measure of fabric anisotropy was capable of identifying stress-induced anisotropy in discrete-element modelling true triaxial simulations with spherical particles. A relationship is established between the constriction orientations, the macro-scale principal stress directions and the micro-scale contact normal orientations.

  • Type:

    Article

  • Date:

    31 January 2013

  • Publication Status:

    Published

  • Publisher

    Thomas Telford for ICE

  • DOI:

    10.1680/geot.11.t.020

  • Cross Ref:

    10.1680/geot.11.T.020

  • ISSN:

    0016-8505

  • Library of Congress:

    TA Engineering (General). Civil engineering (General)

  • Dewey Decimal Classification:

    624 Civil engineering

Citation

Shire, T., O'Sullivan, C., Barreto, D., & Gaudray, G. (2013). Quantifying stress-induced anisotropy using inter-void constrictions. Géotechnique, 63(1), 85-91. https://doi.org/10.1680/geot.11.t.020

Authors

Keywords

fabric/structure of soils; discrete-element modelling; anisotropy

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