Effect of Non-Uniform Torsion on Elastostatics of a Frame of Hollow Rectangular Cross-Section
Journal Title: Strojnicky casopis - Journal of Mechanical Engineering - Year 2018, Vol 68, Issue 2
Abstract
In this paper, results of numerical simulations and measurements are presented concerning the nonuniform torsion and bending of an angled members of hollow cross-section. In numerical simulation, our linearelastic 3D Timoshenko warping beam finite element is used, which allows consideration of non-uniform torsion. The finite element is suitable for analysis of spatial structures consisting of beams with constant open and closed cross-sections. The effect of the secondary torsional moment and of the shear forces on the deformation is included in the local finite beam element stiffness matrix. The warping part of the first derivative of the twist angle due to bimoment is considered as an additional degree of freedom at the nodes of the finite elements. Standard beam, shell and solid finite elements are also used in the comparative stress and deformation simulations. Results of the numerical experiments are discussed, compared, and evaluated. Measurements are performed for confirmation of the calculated results.
Authors and Affiliations
Justín Murín, Mehdi Aminbaghai, Vladimír Goga, Vladimír Kutiš, Juraj Paulech and Juraj Hrabovský
Keywords
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- EP ID EP43938
- DOI https://doi.org/10.2478/scjme-2018-0016
- Views 206
- Downloads 0
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