Author(s)

G. De Saxce & L. Bousshine

Abstract

The variational and numerical approach to contact with dry friction and non associated plasticity of soils: The implicit standard materials G. De Saxce^, L. Bousshine^ "Mechanics of Materials and Structures, Polytechnic Faculty of Mons, 9, Rue de Houdain, ^National Higher School of Electricity and Mechanics, BP 8118 Oasis, Casablanca, Morocco ABSTRACT The work is devoted to numerical simulation of structures involving both contact with friction and plasticity of soils. It is well known that such material behaviours exhibit non associated laws. A new modelization of the law is proposed to recover flow rule normality for non standard material, in particulard for soil. THE IMPLICIT STANDARD MATERIALS A "good generalization" of the standard materials was proposed in [2-4], with preserves the notion of extremal couple and the convexity assumptions. For this family of materials, called implicit standard materials, the existance of

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