Finite strain model for contact interface in forming processes

MARIELA LUEGE; BIBIANA LUCCIONI

Berlín, Alemania

Simposio; Gamm 2006 (Gesellschaft für Angewandte Mathematik und Mechanik e.V.); 2006

In this paper we introduce a phenomenological rate and state-variable friction law for the continuous sliding for lubricated and dry conditions as it occurs in metal forming processes. The contact model is developed within the framework of continuum thermodynamics of irreversible processes with internal variables and for large strains assuming the contact area as a material surface. The model reproduces the boundary friction map resulting from the experiments carried out in