Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/935864

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Title
Arbitrary Lagrangian-Eulerian method for nonlinear problems of geomechanics
Author/Creator
Nazem, M.;  Carter, J. P.;  Airey, D. W.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
In many geotechnical problems it is vital to consider the geometrical non-linearity caused by large deformation in order to capture a more realistic model of the true behaviour. The solutions so obtained should then be more accurate and reliable, which should ultimately lead to cheaper and safer design. The Arbitrary Lagrangian-Eulerian (ALE) method originated from fluid mechanics, but has now been well established for solving large deformation problems in geomechanics. This paper provides an overview of the ALE method and its challenges in tackling problems involving non-linearities due to material behaviour, large deformation, changing boundary conditions and time-dependency, including material rate effects and inertia effects in dynamic loading applications. Important aspects of ALE implementation into a finite element framework will also be discussed. This method is then employed to solve some interesting and challenging geotechnical problems such as the dynamic bearing capacity of footings on soft soils, consolidation of a soil layer under a footing, and the modelling of dynamic penetration of objects into soil layers.
Relation
9th World Congress on Computational Mechanics and 4th Asian Pacific Congress on Computational Mechanics (WCCM 2010). Proceedings of the Joint 9th World Congress on Computational Mechanics and 4th Asian Pacific Congress on Computational Mechanics (Sydney 19-23 July, 2010)
Publisher Link
http://dx.doi.org/10.1088/1757-899X/10/1/012074
Date
2010
Publisher
Institute of Physics Publishing
Keyword(s)
Lagrangian-Eulerian (ALE);  geomechanics;  non-linear problems;  finite element method
Resource Type
conference paper
Identifier
http://hdl.handle.net/1959.13/935864
Identifier
ISBN:1757-899X
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"Arbitrary Lagrangian-Eulerian method for nonlinear problems of geomechanics"
 
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