Implementation and evaluation of a binary mixture model and three-dimensional FE-analysis of water saturated soil
(2006) European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2006.- Abstract
- A binary mixture model for soils has been formulated and analyzed.
In the model one of the constituents is soil and the other
constituent an incompressible liquid. The effects of water are
included by formulating a mixture model is formulated as an
extension of an existing non-associated elasto-plastic material
model for granular materials. This paper is focused on the balance
of momentum equations of the mixture model, primarily to avoid the
difficulties arising when the interaction terms between the
constituents needs to be formulated and constituted. Considering
the momentum balance of the mixture as an extension of the balance
equation of the soil... (More) - A binary mixture model for soils has been formulated and analyzed.
In the model one of the constituents is soil and the other
constituent an incompressible liquid. The effects of water are
included by formulating a mixture model is formulated as an
extension of an existing non-associated elasto-plastic material
model for granular materials. This paper is focused on the balance
of momentum equations of the mixture model, primarily to avoid the
difficulties arising when the interaction terms between the
constituents needs to be formulated and constituted. Considering
the momentum balance of the mixture as an extension of the balance
equation of the soil constituent, it is supplemented with body
forces, stresses and flow effects from the water constituent. These
supplemented terms are evaluated and analyzed. An alternative way
of deriving equation of motion for the fluid is also presented. The
computer algorithm for integrating the constitutive relation of dry
sand is supplemented and numerical simulations with a finite
element code are carried out. It is shown that although the mixture
model consists of two constituents, it is possible to include the
existence of voids and a system with three constituents, i.e. water
unsaturated soil, can be analyzed. Results from single element
tests and simulations of a flexible footing resting on a surface of
water saturated sand are presented. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/589568
- author
- Ahadi, Aylin LU
- organization
- publishing date
- 2006
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- binary mixture model, water saturated, FEM, numerical simulation, soil
- host publication
- ECCOMAS CFD 2006: Proceedings of the European Conference on Computational Fluid Dynamics
- editor
- Wesseling, P.
- publisher
- Delft University of Technology
- conference name
- European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2006.
- conference location
- Netherlands
- conference dates
- 2006-09-03
- ISBN
- 90-9020970-0
- language
- English
- LU publication?
- yes
- id
- 089b9023-b4a2-4090-a6ea-4e59c0a6517d (old id 589568)
- date added to LUP
- 2016-04-04 11:10:16
- date last changed
- 2020-03-17 15:55:04
@inproceedings{089b9023-b4a2-4090-a6ea-4e59c0a6517d,
abstract = {{A binary mixture model for soils has been formulated and analyzed.<br/><br>
In the model one of the constituents is soil and the other<br/><br>
constituent an incompressible liquid. The effects of water are<br/><br>
included by formulating a mixture model is formulated as an<br/><br>
extension of an existing non-associated elasto-plastic material<br/><br>
model for granular materials. This paper is focused on the balance<br/><br>
of momentum equations of the mixture model, primarily to avoid the<br/><br>
difficulties arising when the interaction terms between the<br/><br>
constituents needs to be formulated and constituted. Considering<br/><br>
the momentum balance of the mixture as an extension of the balance<br/><br>
equation of the soil constituent, it is supplemented with body<br/><br>
forces, stresses and flow effects from the water constituent. These<br/><br>
supplemented terms are evaluated and analyzed. An alternative way<br/><br>
of deriving equation of motion for the fluid is also presented. The<br/><br>
computer algorithm for integrating the constitutive relation of dry<br/><br>
sand is supplemented and numerical simulations with a finite<br/><br>
element code are carried out. It is shown that although the mixture<br/><br>
model consists of two constituents, it is possible to include the<br/><br>
existence of voids and a system with three constituents, i.e. water<br/><br>
unsaturated soil, can be analyzed. Results from single element<br/><br>
tests and simulations of a flexible footing resting on a surface of<br/><br>
water saturated sand are presented.}},
author = {{Ahadi, Aylin}},
booktitle = {{ECCOMAS CFD 2006: Proceedings of the European Conference on Computational Fluid Dynamics}},
editor = {{Wesseling, P.}},
isbn = {{90-9020970-0}},
keywords = {{binary mixture model; water saturated; FEM; numerical simulation; soil}},
language = {{eng}},
publisher = {{Delft University of Technology}},
title = {{Implementation and evaluation of a binary mixture model and three-dimensional FE-analysis of water saturated soil}},
year = {{2006}},
}