Model coupling friction and adhesion for steel concrete interfaces

Michel Raous (1) , M'Hamed Ali Karray (2)

1 LMA - Laboratoire de Mécanique et d'Acoustique [Marseille]
2 Département de Génie Civil

The interface behaviour between steel and concrete, during pull-out tests, is numerically investigated using an interface model coupling adhesion and Coulomb friction. This model, first developed by Raous, Cangémi, Cocou and Monerie (RCCM), is based on the adhesion intensity variable, introduced by Frémond, which is a surface damage variable. The RCCM model is here completed by taking a variable friction coefficient to simulate the slip weakening of the interface when sliding occurs. Identification of the parameters and validation of the model are carried on pull out experiments conducted at the INSA of Toulouse on steel-concrete interface of reinforced concrete.

Mots clés: friction; adhesion; steel–concrete interface; non-smooth mechanics

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]

Michel Raous, M'Hamed Ali Karray. Model coupling friction and adhesion for steel concrete interfaces. International Journal of Computer Applications in Technology, 2009, 34 (1), pp.42-51. ⟨10.1504/IJCAT.2009.022701⟩. ⟨hal-00462177⟩