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Quantifying stress-induced anisotropy using inter-void constrictions.

Shire, Thomas, O'Sullivan, Catherine, Barreto, Daniel and Gaudray, G (2013) Quantifying stress-induced anisotropy using inter-void constrictions. Geotechnique, 63 (1). pp. 85-91. ISSN 0016 8505

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Abstract/Description

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.

Item Type: Article
Print ISSN: 0016 8505
Electronic ISSN: 1751-7656
Uncontrolled Keywords: fabric/structure of soils; discrete-element modelling; anisotropy
University Divisions/Research Centres: Faculty of Engineering, Computing and Creative Industries > School of Engineering and the Built Environment
Dewey Decimal Subjects: 600 Technology > 620 Engineering > 624 Civil engineering
Library of Congress Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Item ID: 5672
Depositing User: Dr Daniel Barreto
Date Deposited: 27 Sep 2012 09:48
Last Modified: 13 Jan 2014 10:49
URI: http://researchrepository.napier.ac.uk/id/eprint/5672

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