Skip to main content

Research Repository

Advanced Search

Quantifying the Evolution of Soil Fabric Under Different Stress Paths

Barreto, D.; O�Sullivan, C.; Zdravkovic, L.

Authors

C. O�Sullivan

L. Zdravkovic



Abstract

It is well recognized that the macro-scale response of soils is anisotropic in terms of strength, stiffness, permeability, etc. The source of this anisotropy is thought to be an anisotropy of the material itself. This anisotropy can be quantified using statistical methods if DEM numerical simulations or advanced experimental techniques are used. The anisotropic response of soil has been analyzed by many researchers in terms of the fabric tensor, which provides a measure of the orientation of the contacts between particles. Although many approaches for the quantification of the evolution of soil fabric have been used, they have not been previously compared to assess their effectiveness to describe fabric changes. A direct comparison of different methods of fabric quantification is presented in this paper based on the results from DEM simulations under different stress paths and the suitability of each of these methods is discussed. The results highlight the need for more accurate methods and/or approaches to accurately describe the evolution of fabric anisotropy in granular materials

Conference Name AIP Conference Proceedings
Start Date Jul 13, 2009
End Date Jul 17, 2009
Publication Date 2009
Deposit Date Nov 30, 2011
Publisher AIP Publishing
Peer Reviewed Peer Reviewed
Volume 1145
Pages 181-184
Book Title POWDERS AND GRAINS 2009: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON MICROMECHANICS OF GRANULAR MEDIA
ISBN 978-0-7354-0682-7
DOI https://doi.org/10.1063/1.3179881
Keywords molecular biophysics; finite difference methods; structural engineering computing;
Public URL http://researchrepository.napier.ac.uk/id/eprint/4798
Publisher URL http://dx.doi.org/10.1063/1.3179881