Limitations du choix de l'angle de frottement pour le critère de plasticité de Drucker-Prager

Abstract

ABSTRACT Drucker-Prager model is available in most finite element codes used in civil engineering field, especially those devoted more specifically to geotechnical applications. Indeed, this model is a simple first idealization of the behaviour of frictional-cohesive materials, like soils, rocks, and other granular materials. However, this model must be used with care with respect to the choice of the friction angle. The paper presents a discussion of the validity domain for this parameter, in the context of both purely frictional and cohesive-frictional materials.