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Implementation and evaluation of a binary mixture model and three-dimensional FE-analysis of water saturated soil

Ahadi, Aylin LU (2006) European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2006. In [Host publication title missing]
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:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
binary mixture model, water saturated, FEM, numerical simulation, soil
in
[Host publication title missing]
editor
Wesseling, P.
publisher
Proceedings ECCOMAS CFD 2006
conference name
European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2006.
ISBN
90-9020970-0
language
English
LU publication?
yes
id
089b9023-b4a2-4090-a6ea-4e59c0a6517d (old id 589568)
date added to LUP
2008-02-13 10:25:19
date last changed
2016-04-16 08:52:37
@misc{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},
  editor       = {Wesseling, P.},
  isbn         = {90-9020970-0},
  keyword      = {binary mixture model,water saturated,FEM,numerical simulation,soil},
  language     = {eng},
  publisher    = {ARRAY(0x9804768)},
  series       = {[Host publication title missing]},
  title        = {Implementation and evaluation of a binary mixture model and three-dimensional FE-analysis of water saturated soil},
  year         = {2006},
}