Shear contribution on viscoelastic behavior of beams modeled using plane frame elements with Reissner kinematics

The development of a numerical formulation is presented to describe viscoelastic behavior considering shear effects. nonlinear positional the Finite Element Method used plane frame elements with Reissner kinematics. description considered through adoption stress-strain relation based on Boltzmann rheological model. kinematics allows decoupling between rotations and displacements in element cross-sections. This approach evaluate contribution effects an original way. Based developments results obtained, it possible observe that strains due are significantly superior obtained Bernoulli-Euler hypothesis. It notice better agreement literature. Results from developed allow assessment frames.