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Lookup NU author(s): Dr Mohamed Rouainia
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This work is directed toward the formulation and analysis of the modi"ed Cam-clay critical state model within the framework of isotropic multiplicative "nite strains. A suitable energy function, in which the shear modulus is made to depend on the mean pressure, is chosen allowing the hyperelastic response to be energy conserving. As a result of the use of Eulerian logarithmic stretches as strain measures in conjunction with an exponential approximation of the plastic #ow rule, the small strain integration algorithms, and the corresponding consistent tangent operators, automatically extend to the "nite strain regime. Numerical simulations are provided to demonstrate the stability and good performance of the proposed formulation.
Author(s): Rouainia M, Muir Wood D
Publication type: Article
Publication status: Published
Journal: Mechanics of Cohesive-Frictional Materials
Print publication date: 01/08/2000
ISSN (print): 1082-5010
Publisher: John Wiley & Sons Ltd.
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