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, G.. - In: COMPUTERS AND GEOTECHNICS. - ISSN 0266-352X. - 36:6(2009), pp. 960-967. [10.1016/j.compgeo.2009.03.007]
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
