ABSTRACT

The characterization and modeling of rubber-like materials behavior have been widely addressed in last decades due to the increasing number of industrial applications. In order to improve the physical properties of the material, silicone rubbers are classically filled by mineral fillers, implying an increase of stiffness but also the appearance of some unconventional effects. Among these phenomena, one can cite the stress softening, which principaly occurs between first and second loads, often called the Mullins effect (Mullins 1948), the relaxation and the hysteretic behavior (unload different from load), non-exhaustively.