A variational inequality-based formaulation of the frictional contact law with a non-associated sliding rule
type de publication |
article dans une revue internationale avec comité de lecture |
date de publication |
2002 |
auteur(s) |
Hjiaj Mohammed; De Saxce Géry; Mroz Zénon |
journal |
European Journal of Mechanics A/Solids |
volume (numéro) |
21 (1) |
| |
pages |
49 – 59 |
résumé |
We present a variational formulation of a complex frictional contact law with anisotropic friction condition and a non-associated sliding rule. The distinguishing characteristic of the proposed formulation is that the interface law, as well as its inverse, derive from a single scalar-valued function called bi-potential. This function, which depends on both the velocities and the associated forces, is split into the sum of two dual pseudo-potentials for standard multivalued laws. The main advantages of the formalism are the compact form taken by the present complex law and convexity property of the bi-potential that can be exploited for numerical purposes. |
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