Journal article
Multi-slip gradient formulation for modeling microstructure effects on shear bands in granular materials
International journal of solids and structures, Vol.44(10), pp.3393-3410
2007
Handle:
https://hdl.handle.net/2376/106559
Abstract
This paper presents a higher order gradient multi-slip formulation to model the effect of inhomogeneous deformation in granular materials. The effects of heterogeneity and porosity anisotropy within the multi-slip formulation are taken into consideration through the modification of the mobilized friction. The mobilized friction is assumed to be a direct function of either the gradient of the porosity distribution or the fabric tensor. The formulation with two active slip planes was implemented into a finite element code and used to simulate biaxial shear tests on dry sand. The analysis quantifies most of the shear band characteristics observed by past experimentation. It is shown that the localization and shear band characteristics in granular materials are very much dependent on the initial fabric and slip system arrangement.
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Details
- Title
- Multi-slip gradient formulation for modeling microstructure effects on shear bands in granular materials
- Creators
- O. Al Hattamleh - Department of Civil Engineering, Hashemite University, P.O. Box 150459, Zarqa 13115, JordanB Muhunthan - Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, USAH.M Zbib - School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, USA
- Publication Details
- International journal of solids and structures, Vol.44(10), pp.3393-3410
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900546713001842
- Language
- English
- Resource Type
- Journal article