A Strain-based Non-linear Elastic Model for Geomaterials


Heath, A., 2008. A Strain-based Non-linear Elastic Model for Geomaterials. WSEAS Transactions on Applied and Theoretical Mechanics, 3 (6), pp. 197-206.

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The non-linear elastic behaviour of geomaterials has traditionally been modeled using stressdependent elastic models. The approach used by many researchers is not rigorous where the ?elastic? models can create energy and can predict permanent deformation under certain circumstances. Other researchers have used rigorous hyperelastic models where energy is conserved by the elastic portion of the model, but these models have stress-dependent stiffness which can slow computation and lead to iterative solutions in finiteelement or other strain-based computation techniques. To overcome these problems a rigorous elastic model is investigated which predicts similar behaviour to hyperelastic models, but has the advantage of being elastic strain based which allows more direct solution in strain-based finite-element or other computational codes.


Item Type Articles
CreatorsHeath, A.
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Uncontrolled Keywordselastic strain,non-linear,finite element,geomaterials,elasticity
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
ID Code12980


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