This paper extends the formulation of a recent yield and failure criterion [Mortara G. A new yield and failurecriterion for geomaterials. Géotechnique 2008;58(2):125–32] by modifying its shape in the deviatoricrepresentation. Such a modification improves the performance of the surface introducing a constitutiveparameter associated to the variation of the Lode angle. The criterion is validated through the comparisonwith experimental data obtained from multiaxial tests on soils, rocks and concrete. A special form of thecriterion will be also derived for numerical applications in order to remove singularities of the previouscriterion.

A hierarchical single yield surface for frictional materials

MORTARA, Giuseppe
Conceptualization
2009-01-01

Abstract

This paper extends the formulation of a recent yield and failure criterion [Mortara G. A new yield and failurecriterion for geomaterials. Géotechnique 2008;58(2):125–32] by modifying its shape in the deviatoricrepresentation. Such a modification improves the performance of the surface introducing a constitutiveparameter associated to the variation of the Lode angle. The criterion is validated through the comparisonwith experimental data obtained from multiaxial tests on soils, rocks and concrete. A special form of thecriterion will be also derived for numerical applications in order to remove singularities of the previouscriterion.
constitutive modelling; frictional materials; shear strength; three-dimensional stress; yield surface
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12318/5134
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