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Journal Articles Journal of Computational Physics Year : 2003

A Lagrangian integration point finite element method for large deformation modeling of viscoelastic geomaterials

Abstract

We review the methods available for large deformation simulations of geomaterials before presenting a Lagrangian integration point finite element method designed specifically to tackle this problem. In our Ellipsis code, the problem domain is represented by an Eulerian mesh and an embedded set of Lagrangian integration points or particles. Unknown variables are computed at the mesh nodes and the Lagrangian particles carry history variables during the deformation process. This method is ideally suited to model fluid-like behavior of continuum solids which are frequently encountered in geological contexts. We present benchmark examples taken from the geomechanics area.
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Dates and versions

hal-00333883 , version 1 (27-10-2008)

Identifiers

  • HAL Id : hal-00333883 , version 1

Cite

Louis Moresi, Frédéric Dufour, Hans Muhlhaus. A Lagrangian integration point finite element method for large deformation modeling of viscoelastic geomaterials. Journal of Computational Physics, 2003, 184, pp.476-497. ⟨hal-00333883⟩
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