The deformation regularities of duothan QA965 (two-component polyurethane material) in the temperature range of20-100 °C under uniaxial loading are investigated. Deformation curves of the material for Henky's, Mooney-Rivlin's, Bartenev- Khazanovich's elastic potentials are constructed. The dependence of the elastic constants of these potentials on the temperature within a certain range was obtained. Relaxation functions were analyzed according to the results of experiments of the duothan's relaxation for different initial strain into assumption of linear viscoelasticity. Numerical simulation of silent-block deformation by moving the sleeve, was held by finite element method. The calculation was performed using the elastic potential Mooney- Rivlin.
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