ABSTRACT
Adding fillers to a polymer fundamentally modifies its viscoelastic properties. Highly-filled polymers have a filler volumic fraction up to 80%, implying that a small quantity of binder ensures cohesion. The modelling of the nonlinear viscoelastic mechanical behavior exhibited by these materials is hardly accessible. Local deformation mechanisms are not clearly determined because of complex binder-fillers interactions. The aim of this work is to understand the links between solid propellant microstructure and its macroscopic mechanical properties.
