A simplified numerical method to determine the shear stress relaxation time parameters by the example of polymers


  • M.S. Voronin


Maxwellian model
shear stress relaxation
yield stress
stress-strain curves
epoxy resin


A numerical method to determine the parameters of the shear stress relaxation time is discussed. This function is one of the constitutive equations of a Maxwellian viscoelastic model. The method is based on a simplification of the system of equations describing the deformation of a thin rod when this system is considered at the yield stress point. The method allows one to find the relaxation time parameters responsible for the yield stress description in a wide range of temperatures and strain rates. The numerical results obtained by the method are compared with experimental data for polymethylmethacrylate, polytetrafluoroethylene, and epoxy resin.





Section 1. Numerical methods and applications

Author Biography

M.S. Voronin


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