Quality analysis of nonlinear elasticity theory for the stability problems of planar laminated curved beams. Problem statement |
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Authors: | V N Paimushin I Sh Gunal S A Lukankin V A Firsov |
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Institution: | 1.Tupolev State Technical University,Kazan,Russia |
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Abstract: | The one-dimensional equations that describe the geometrically nonlinear deformation with arbitrary displacements and small
strains are constructed for the planar laminated curved beams based on the Timoshenko model taking into account transverse
compression. The equations are based on the relations of the classical nonlinear theory of elasticity for the case of realizing
plane stressed state in a beam and also on the similar relations previously proposed in the consistent variant. Based on the
equations constructed, we form the linearized equations of the neutral equilibrium of beams that enables investigating all
possible buckling modes under the action of conservative forces and a stationary temperature field. |
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