Title | Feedback mechanisms in chemo-mechanical multi-scale modeling of soil and sediment compaction |
Publication Type | Journal Article |
Year of Publication | 2009 |
Authors | T Hueckel, and LB Hu |
Journal | Computers and Geotechnics |
Volume | 36 |
Start Page | 934 |
Issue | 6 |
Pagination | 934 - 943 |
Date Published | 07/2009 |
Abstract | Geomaterials respond to some environmental circumstances through generation of a series of feedback mechanisms of damage, deformation, erosion, and chemical processes or reactions: e.g. osmosis, dissolution and precipitation, mineral transformations. These mechanisms are coupled at different scales. Several natural geomechanical processes, as sediment compaction, rock weathering or landsliding appear to include such sequences of mechanisms. A multi-physics model of sediment compaction is examined from the point of view of feedbacks and feedforwards for the phenomena involved at micro- and meso-scale. Two types of feedback are identified: constitutive feedbacks and boundary condition feedbacks. A numerical sensitivity study points out which feedbacks and feedforwards are strong and which are weak. © 2009 Elsevier Ltd. All rights reserved. |
DOI | 10.1016/j.compgeo.2009.02.005 |
Short Title | Computers and Geotechnics |