Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Beam element for thin-walled beams with torsion, distortion, and shear lag
HighlightsTo calculate the resistance modes of sections (shear, torsion and distortion), in opposition to classical methods.The orthogonalization of shear warping functions to take into account the shear lag effect in a general way.Describing a new beam element formulating the displacement field and applying energetic methods.Checking the developed element by comparison with analytical solutions and other known results.
AbstractPractical design of bridges and other structures requires the use of quick and simple calculation methods, rather than the use of tridimensional models using shell or solid finite elements. These methods have to be used for a general loading state, taking into account the different structural mechanisms, and generating the results required to apply the verifications of the structural codes and to understand the structural behavior. In this work, a beam-type element is proposed to adress these objetives for the case of thin walled sections. This element has three nodes, with five-degrees of freedom per node, more than the six degrees of a conventional 3D beam, incorporates the effects of shear lag, torsion and distortion homogeneous and non homogeneous in the distribution of normal stress. Various examples were tested to verify the validity of the beam element according different calculation methods.
Beam element for thin-walled beams with torsion, distortion, and shear lag
HighlightsTo calculate the resistance modes of sections (shear, torsion and distortion), in opposition to classical methods.The orthogonalization of shear warping functions to take into account the shear lag effect in a general way.Describing a new beam element formulating the displacement field and applying energetic methods.Checking the developed element by comparison with analytical solutions and other known results.
AbstractPractical design of bridges and other structures requires the use of quick and simple calculation methods, rather than the use of tridimensional models using shell or solid finite elements. These methods have to be used for a general loading state, taking into account the different structural mechanisms, and generating the results required to apply the verifications of the structural codes and to understand the structural behavior. In this work, a beam-type element is proposed to adress these objetives for the case of thin walled sections. This element has three nodes, with five-degrees of freedom per node, more than the six degrees of a conventional 3D beam, incorporates the effects of shear lag, torsion and distortion homogeneous and non homogeneous in the distribution of normal stress. Various examples were tested to verify the validity of the beam element according different calculation methods.
Beam element for thin-walled beams with torsion, distortion, and shear lag
Cambronero-Barrientos, Francisco (Autor:in) / Díaz-del-Valle, Julián (Autor:in) / Martínez-Martínez, José-Antonio (Autor:in)
Engineering Structures ; 143 ; 571-588
10.04.2017
18 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Beam element for thin-walled beams with torsion, distortion, and shear lag
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