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Information × Registration Number 0221U100788, 0119U001862 , R & D reports Title Development of the method of stress relaxation determination in thin-walled tubular elements made of nonlinear-viscoelastic materials popup.stage_title Head Pavliuk Yaroslav V, Кандидат технічних наук Registration Date 09-01-2021 Organization S.P.Timoshenko Institute of Mechanics popup.description2  Recommendations for determining the stress relaxation characteristics of structural nonlinear viscoelastic polymeric materials under biaxial loading are developed. The recommendations are based on the nonlinear theory of viscoelasticity, in which the relationship between strain and stress tensors is given based on the hypothesis of proportionality of tensor deviators, and the nonlinearity of viscoelastic properties is given by equations such as Rabotnov's equations. The recommendations include a method for determining the parameters of hereditary kernels and a method for determining stress relaxation under conditions of complex stress. Product Description popup.authors Pelykh Volodymyr M popup.nrat_date 2021-03-17 Close