ABSTRACT
Here we describe a nano-mechanical mechanism for dissipative loss in filled elastomer networks. The mechanism is based on the sum of molecular forces leading to a loop in the stress-strain-relation, which gives rise to spontaneous displacements between filler particles on the sub-nanometer scale. We discuss the application of this mechanism to the loss modulus, μ″, which is intimately related to the Payne effect and one ingredient to its elucidation. In particular we outline a procedurehow the model may be used to make quantitative predictions of μ″.
