Auxiliary plastic potential approach in elastoplasticity for soils
Abstract: The scope of this paper is to give an alternative to the use of an explicit plastic potential in elastoplastic models for soils. This is possible through the definition of a stress-dilatancy relationship and a simple expression for an auxiliary surface inlieu of a given expression of the plastic potential surface. This approach results in a flexible definition of the model and to very simple expressions of the auxiliary plastic potential derivatives.
Keywords: models / stress / elastoplasticity / plastic potential / soils / auxiliary / flexible / give / explicit
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