A computational procedure for the prediction of settlement in granular materials under cyclic loading

Granular materials have been subject of considerable interest in the recent years because of the richness of their physical behavior. Coupled with experimental approaches, the discrete element methods are now recognized as powerful tools to understand several mechanisms related to these materials su...

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Bibliographic Details
Published in:Computer methods in applied mechanics and engineering 2007-12, Vol.197 (1), p.80-94
Main Authors: Karrech, A., Duhamel, D., Bonnet, G., Roux, J.N., Chevoir, F., Canou, J., Dupla, J.C., Sab, K.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Engineering Sciences
Exact sciences and technology
Granular materials
Granular solids
Material form
Mechanics
Molecular dynamics
Physics
Relaxation
Rheology
Settlement
Solid mechanics
Time averaging
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Summary:Granular materials have been subject of considerable interest in the recent years because of the richness of their physical behavior. Coupled with experimental approaches, the discrete element methods are now recognized as powerful tools to understand several mechanisms related to these materials such as convection, compaction and settlement. However, these methods are very costly in terms of calculation time. In this paper, we introduce a computational method for the simulation of three-dimensional granular bed responses under long term cyclic loading. It sequentially uses a molecular dynamics scheme, a time averaging technique, and a relaxation method in order to predict the long term flow. The suggested approach is then applied to specific cases in order to verify its efficiency and accuracy.
ISSN:0045-7825
1879-2138
DOI:10.1016/j.cma.2007.07.011