Effects of a non-coaxial flow rule on shear bands in viscous-plastic materials

Muhlhaus, Hans B., Shi, Jingyu, Olsen-Kettle, Louise and Moresi, Louis (2011) Effects of a non-coaxial flow rule on shear bands in viscous-plastic materials. Granular Matter, 13 3: 205-210.


Author Muhlhaus, Hans B.
Shi, Jingyu
Olsen-Kettle, Louise
Moresi, Louis
Title Effects of a non-coaxial flow rule on shear bands in viscous-plastic materials
Journal name Granular Matter   Check publisher's open access policy
ISSN 1434-5021
1434-7636
Publication date 2011-06
Sub-type Article (original research)
DOI 10.1007/s10035-011-0254-7
Volume 13
Issue 3
Start page 205
End page 210
Total pages 6
Place of publication Heidelberg, Germany
Publisher Springer
Collection year 2012
Language eng
Formatted abstract A class of non-coaxial plasticity models is revisited in which the plastic deformation is carried by one (single slip) or two (double slip) slip systems that are inclined at ± (π/4+ν/2), 0 ≤ ν ≤ φ to the less compressive principal stress axis; ν is the angle of non-coaxiality and φ is the internal angle of friction of the material. The non-coaxial model is combined with a Newtonian viscous rheology to form a viscous-plastic model. The model is applied to model strain localisation in extension and compression on a time scale typical for deformation processes in the lithosphere. We would like to dedicate this article to the memory of Ioannis Vardoulakis who always took a keen interest in bifurcation theory and shear banding for granular materials.
Keyword Double slip
Non-coaxial
Viscous plasticity
Granular-materials
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes From the issue entitled "Special issue: Developments in micromechanical modelling of granular materials/Guest edited by Fernando Alonso-Marroquin • Itai Einav • Antoinette Tordesillas"

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
Earth Systems Science Computational Centre Publications
 
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Created: Thu, 13 Oct 2011, 10:21:28 EST by Hans-Bernd Muhlhaus on behalf of Earth Systems Science Computational Centre