DYNAMIC PROPERTIES OF FILLED RUBBER. PART II: PHYSICAL BASIS OF CONTRIBUTIONS TO THE MODEL

Abstract A relatively simple time-domain model is proposed with the scope to capture those aspects of the uniaxial stress–strain behavior of filled rubber that are most significant in engineering applications, and is discussed in the context of a literature review. Its performance is investigated in simple shear using analytical expressions. Attention has been given to assembling the model from separate physical contributions, each already established in the literature, so that not only is the number of parameters small but also they may be at least semi-quantitatively related to the formulation of the elastomer. The small number of parameters helps to keep tests for fitting them simple, while their connection to mechanisms also enables a degree of utility of the model even when extrapolated to situations beyond those covered by tests.