How to connect two scales of behaviour in constitutive modelling of geomaterials. Issue 3 (3rd September 2012)

• Record Type: Journal Article
• Authors: Nguyen, G. D.; Einav, I.; Korsunsky, A. M.
• Is Part Of: Géotechnique letters. Volume 2:Issue 3(2012)
• Page Start: 129
• Page End: 134
• Publication Date: 2012-09-03
• Subjects: constitutive relations; -- numerical modelling; -- finite-element modelling; -- strain localisation; Geotechnical engineering -- Periodicals; Engineering geology -- Periodicals; 624.151
• DOI: 10.1680/geolett.12.00030
• Languages: English
• ISSNs: 2045-2543

Abstract

Abstract : Localised failure of geomaterials involves deformation at two scales: a narrow localisation zone and the surrounding bulk. The behaviour associated with both scales should be properly taken into account in the development of constitutive models. This article presents a general constitutive modelling framework to connect these two scales, each of which is associated with a different stage of the material behaviour. It is demonstrated how this approach can be applied to any geomaterial model and how it could help obtain solutions independent of the spatial discretisation in numerical analysis.