Elastic buckling of elliptical tubes

Ruiz-Teran, Ana M.; Gardner, Leroy

doi:10.1016/j.tws.2008.01.036

Cited by 82 publications

(66 citation statements)

References 15 publications

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“…Previous studies on carbon steel EHS [2] in major and minor axis bending were utilised and the slenderness parameters originally proposed for carbon steel EHS were adopted in the present study. Both test and FE results were compared with existing test data on stainless steel CHS and carbon steel EHS and the effect of aspect ratio, cross-section slenderness and moment gradient on strength and deformation capacity has been highlighted.…”

Section: Discussionmentioning

confidence: 99%

“…As successfully employed in similar previous studies [2,5,6,8,18], the reduced integration 4-noded doubly curved general-purpose shell element S4R with finite membrane strains [32] has been employed in the present study. In order to minimize computational time while still generating accurate results, a mesh convergence study based on elastic eigenvalue buckling analyses was carried out.…”

Section: Numerical Modellingmentioning

confidence: 99%

“…where De is an equivalent diameter defined as two times the maximum radius of curvature in an elliptical section which is equal to ) b / a ( 2 2 and 210000 E 235 2 . 0    as specified in [17].…”

Section: Slenderness Parametersmentioning

confidence: 99%

“…Previous research into the structural response of oval and elliptical hollow sections has included analytical and numerical investigations of elastic buckling and post-buckling [1][2][3], experimentation and derivation of slenderness limits [4][5][6] and examination of shear [7] and flexural buckling [8] behaviour. The resistances of EHS under combined loading [9] and with concrete infill [10][11][12] have also been studied, as have a range of EHS connection types [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Flexural behaviour of stainless steel oval hollow sections

Theofanous

Chan

Gardner

2009

Thin-Walled Structures

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Section: Discussionmentioning

confidence: 99%

Section: Numerical Modellingmentioning

confidence: 99%

Section: Slenderness Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flexural behaviour of stainless steel oval hollow sections

Theofanous

Chan

Gardner

2009

Thin-Walled Structures

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“…While the findings of the previous researchers have been largely confirmed, detailed numerical modelling (Zhu and Wilkinson, 2006;Ruiz-Teran and Gardner, 2008;Silvestre, 2008) has revealed that use of the maximum radius of curvature in the prediction of the elastic buckling stress of an EHS in compression becomes increasingly inaccurate for higher aspect ratios and thicker tubes, hence, revised expressions have been devised (Ruiz-Teran and Gardner, 2008;Silvestre, 2008). Most recently, the post-buckling stability and imperfection sensitivity of EHS were systematically quantified (Silvestre and Gardner, submitted) in terms of bifurcation angle and slope of ascending post-buckling equilibrium path.…”

Section: Elastic Local Buckling and Post-bucklingmentioning

confidence: 82%

Structural design of elliptical hollow sections: a review

Chan

Gardner

Law

2010

Proceedings of the Institution of Civil Engineers - Structures

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Tubular construction is synonymous with modern architecture. The familiar range of tubular sections, namely square, rectangular and circular hollow sections, has been recently extended to also include elliptical hollow sections. These new sections combine the elegance of circular hollow sections with the improved structural efficiency in bending of rectangular hollow sections, due to the differing flexural rigidities about the two principal axes. Following the introduction of structural steel elliptical hollow sections (EHS), a number of investigations into their structural response have been carried out. This paper presents a state of the art review of recent research on elliptical hollow sections, together with a sample of practical applications. The following aspects are addressed: fundamental research on elastic local buckling and post-buckling, cross-section classification, response in shear, member instabilities, connections and the behaviour of concrete filled EHS. Details of full scale testing and numerical modelling studies are described, and the generation of statistically validated structural design rules, suitable for incorporation into international design codes, is outlined.

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Cross‐sectional behaviour and design of ferritic and duplex stainless steel EHS in compression

Mohammed

Cashell

2021

Steel Construction

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This paper describes an investigation into the cross-sectional behaviour of elliptical hollow section (EHS) columns made from ferritic and duplex stainless steel. The EHS is a relatively new structural shape with a number of favourable attributes including aesthetic appeal, high strength-to-weight ratio, good torsional resistance and excellent flexural strength. In recent years there have been significant developments in the analysis and understanding of these shapes, although most studies have focused on carbon steel EHS. The work so far is taken a step further here by considering some of the newer grades of stainless steel that are used in structural applications. A numerical model is developed and validated against test data from the literature and is then employed to generate structural performance data. Subsequently, parametric studies are performed to investigate the influence of individual parameters such as the material properties, aspect ratio and local slenderness of cross-sectional elements. The accuracy of existing design procedures is assessed by comparing the numerical data with the resistances obtained using Eurocode 3. It is shown that the cross-sectional slenderness limits given in Eurocode 3 for EHS members made from carbon steel can also be safely used for sections made from ferritic and duplex stainless steel.

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Elastic buckling of elliptical tubes

Cited by 82 publications

References 15 publications

Flexural behaviour of stainless steel oval hollow sections

Flexural behaviour of stainless steel oval hollow sections

Structural design of elliptical hollow sections: a review

Cross‐sectional behaviour and design of ferritic and duplex stainless steel EHS in compression

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