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Article Dans Une Revue International Journal for Numerical and Analytical Methods in Geomechanics Année : 2014

Elastoplastic model with loading memory surfaces (LMS) for monotonic and cyclic behaviour of geomaterials

Résumé

A new elastoplastic model called loading memory surface based on the critical state concept and the multi-surface framework is proposed for geomaterials. The model uses a hypoelastic formulation and two plastic mechanisms. The formulations of the model are made in three-dimensional stress-strain space and work under both monotonic and cyclic loadings. A newly introduced formalism makes it possible to obtain the cyclic response directly from the monotonic loading one. This formalism gives a three-dimensional generalization of the well-known Masing rule. The model has been validated against test results of Hostun sand under several conditions: monotonic and cyclic, drained and undrained, tests in compression and in extension, and at different confining pressures and different densities.

Dates et versions

hal-01470377 , version 1 (17-02-2017)

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Citer

Hervé Di Benedetto, Matthieu Blanc, Samir Tiouajni, Alan Ezaoui. Elastoplastic model with loading memory surfaces (LMS) for monotonic and cyclic behaviour of geomaterials. International Journal for Numerical and Analytical Methods in Geomechanics, 2014, 38 (14), pp.1477-1502. ⟨10.1002/nag.2265⟩. ⟨hal-01470377⟩
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