Experimental identification and rheological modeling of the Mullins effect for carbon black-filled rubber

Grégory Chagnon (1) , Erwan Verron (1) , Laurent Gornet (1) , Gilles Marckmann (1) , Pierre Charrier (2) , Patrice Fort (2)

1 GeM - Institut de Recherche en Génie Civil et Mécanique
2 Trelleborg

Elastomers exhibit a reduction of stiffness after a first loading cycle during fatigue tests. This phenomenon so-called the Mullins effect is considered as a damage phenomenon which only depends on the maximum stretch. The aim of our work is to identify this damage experimentally. Viscous effects are neglected and the Ogden's strain energy function is adopted. The damage evolution is measured with cyclic experiments of various amplitudes and identified as a decreasing exponential function of the maximum stretch. Finally we demonstrate that experimental data verify the Miehe's model.

Mots clés: elastomer; hyperelasticity; damage; Mullins effect; experimental

Domaines: Mécanique [physics.med-ph]; Matériaux

Grégory Chagnon, Erwan Verron, Laurent Gornet, Gilles Marckmann, Pierre Charrier, et al.. Experimental identification and rheological modeling of the Mullins effect for carbon black-filled rubber. 8th International Seminar on Elastomers, 2001, Le Mans, France. ⟨hal-01008192⟩