Finite Element Simulations of Lateral Torsional Buckling of Tapered Cantilever Beams

2009 ◽  
Author(s):  
P. Buffel ◽  
G. Lagae ◽  
R. Van Impe ◽  
W. Vanlaere ◽  
M. De Beule
Keyword(s):  
Finite Element ◽  
Finite Element Simulations ◽  
Cantilever Beams ◽  
Lateral Torsional Buckling ◽  
Torsional Buckling

scholarly journals On the Resistance Evaluation of Lateral-torsional Buckling of Bisymmetrical I-section Beams Using Finite Element Simulations

2016 ◽  
Vol 153 ◽  
pp. 180-188 ◽  
Author(s):  
Marian Giżejowski ◽  
Radosław Szczerba ◽  
Marcin Gajewski ◽  
Zbigniew Stachura
Keyword(s):  
Finite Element ◽  
Finite Element Simulations ◽  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Resistance Evaluation

scholarly journals Calibration of Design Buckling Curves for Lateral-Torsional Buckling of Cantilever Beams Made of Glass—Experimental and Numerical Investigations

2019 ◽  
Vol 9 (16) ◽  
pp. 3432
Author(s):  
Ralph Timmers ◽  
Tobias Neulichedl
Keyword(s):  
Cantilever Beam ◽  
Cantilever Beams ◽  
Testing Device ◽  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Numerical Investigations ◽  
Buckling Behavior ◽  
Load Carrying ◽  
Special Case ◽  
Important System

Using glass as a primary load-carrying element is becoming more and more popular in architecture. Probably the most used application is the single-span girder, but another important system is the cantilever beam, which is widely used, e.g., as a canopy in front of an entrance. Research on the lateral-torsional buckling behavior of glass beams has been typically performed on single-span girders. As a consequence, the design buckling curves provided in literature are usually too conservative for the widely used case of a cantilever beam, which is also related to the loading situation. Therefore, experimental and numerical investigations have been performed for this special case. Based on the obtained results, design buckling curves have been developed and resulted in being more economical than the curves already given in the literature. Among others, information on the shape and size of the real imperfections, a testing device for cantilever beams, and experimentally and numerically obtained load-deflection curves are additional outcomes of the investigations presented here.

Lateral torsional buckling of steel twin plate girder systems with torsional braces only

2016 ◽  
Vol 43 (2) ◽  
pp. 182-192 ◽  
Author(s):  
Chris Mantha ◽  
Xi Chen ◽  
Yi Liu
Keyword(s):  
Finite Element ◽  
Design Procedure ◽  
Element Model ◽  
Torsional Stiffness ◽  
Effective Length ◽  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Finite Element Study ◽  
Element Study ◽  
Plate Girder

This paper presents results of both an experimental and a finite element study on the lateral torsional buckling behaviour and strength of twin plate girder systems with only discrete torsional braces. Two scaled twin-beam specimens with different arrangements of lateral and torsional braces were tested and results were used to validate the finite element model. The finite element study considered the effect of individual brace member stiffness and the number of braces. Results showed that for twin plate girders braced with only torsional braces, the critical buckling moment has the most significant increase when the number of interior braces increases from two to three. For a given girder section, the increase in the critical moment capacity by increasing the cross-frame member size is minimal. The lateral torsional buckling moment equation as well as the brace force design procedure contained in the Canadian Highway Bridge Design Code were examined. A relationship between the ratio of provided-to-required torsional stiffness and the effective length factor was discussed.

Shear-deformable hybrid finite-element formulation for lateral-torsional buckling analysis of composite thin-walled members

2020 ◽  
Author(s):  
Emre Erkmen ◽  
Vida Niki ◽  
Ashkan Afnani
Keyword(s):  
Finite Element ◽  
Beam Theory ◽  
Buckling Analysis ◽  
Finite Element Formulation ◽  
Element Formulation ◽  
Lateral Torsional Buckling ◽  
Torsional Buckling ◽  
Hybrid Finite Element ◽  
Thin Walled ◽  
Shear Deformable

A shear deformable hybrid finite element formulation is developed for the lateral-torsional buckling analysis of fiber-reinforced composite thin-walled members with open cross-section. The method is developed by using the Hellinger-Reissner functional. Comparison to the displacement-based formulations the current hybrid formulation has the advantage of incorporating the shear deformation effects easily by using the strain energy of the shear stress field without modifying the basic kinematic assumptions of the thin-walled beam theory. Numerical results are validated through comparisons with results based on other formulations presented in the literature. Examples illustrate the effects of shear deformations and stacking sequence of the composite layers in predicting bucking loads.

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