Structural response to axial testing of cold-formed stainless steel angle columns

Dobrić, Jelena; Filipović, Aljoša; Marković, Zlatko; Baddoo, Nancy

doi:10.1016/j.tws.2020.106986

Cited by 17 publications

(20 citation statements)

References 15 publications

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“…Figure 1. Typical stub column failure mode [1] The cross-section ultimate resistance and deformation capacity were quantified by stub column tests. A total of three repeated stub column tests were performed under pure axial compression.…”

Section: Experimental Programmementioning

confidence: 99%

“…Furthermore, 27 different equal-leg angle sections were selected providing both slender and non-slender cross-sectional behaviour. The influence of material nonlinearity on column ultimate strength was thoroughly analysed for three primary alloysaustenitic, ferritic and duplex stainless steel using collected data from literature [1], [8], [9], [10].…”

Section: Finite Element Modelling and Parametric Studymentioning

confidence: 99%

“…This section addresses the comparison of the generated experimental [1] and FE data [2] with the design buckling predictions determined in accordance with the procedures described in SRPS EN 1993-1-4 [6] and SRPS EN 1993-1-1 [11]. Figures 4 shows the graphical comparisons of the different European buckling with the FE and test ultimate loads normalised by the cross-section yield loads for dominant minor-axis FB.…”

Section: Buckling Curve Proposal and Reliablity Assesmentmentioning

confidence: 99%

“…As the cross-section is asymmetric, distribution of axial stresses in the cross-section strongly depends on the direction of total eccentricity along the axis of symmetry-towards the tips of the legs or to the corner (one causing compressive yielding of the leg tips, the other causing compressive yielding of the section corner). Besides, an increase of the leg width-tothickness ratio increases the tendency of the angle to rotate and increase possibility for FTB failure in the entire global column slenderness range [1], [2].…”

Section: Introductionmentioning

confidence: 99%

“…This paper briefly present key results of a scientific research addressing cold-formed stainless steel equal-leg angle columns with pin-ended boundary conditions, conducted at the University of Belgrade, Faculty of Civil Engineering, aiming to propose procedures for their design taking into account the cross-section slenderness, material non-linearity and initial structural imperfections caused by particular production process. The analytical background, state of art, experimental procedures, numerical studies and used methodologies are described in detail in recently published papers [1], [2].…”

Section: Introductionmentioning

confidence: 99%

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The new buckling curves for cold-formed stainless steel equal-leg angle columns

Dobrić¹,

Filipović²,

Baddoo³

et al. 2021

Građ materijali i konstrukcije

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The design rules for centrically compressed stainless steel equal-leg angle members are not explicitly stated in the current European standard SRPS EN 1993-1-4. This paper summarizes the results of extensive research conducted on this type of structural elements aiming to define recommendations for their design. Based on a systematic experimental investigation, a detailed numerical analysis was performed, and a database of columns' resistances were defined. Material and geometric nonlinear analysis included three key stainless steel alloys, austenitic, ferritic and duplex. The design curves for flexural and flexural-torsional buckling check have been proposed in accordance with European codified procedures.

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Section: Experimental Programmementioning

confidence: 99%

Section: Finite Element Modelling and Parametric Studymentioning

confidence: 99%

Section: Buckling Curve Proposal and Reliablity Assesmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The new buckling curves for cold-formed stainless steel equal-leg angle columns

Dobrić¹,

Filipović²,

Baddoo³

et al. 2021

Građ materijali i konstrukcije

Self Cite

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Major‐axis buckling of pin‐ended stainless steel equal‐leg angle section members: FE modelling and design

Behzadi‐Sofiani,

Wadee,

Gardner

2023

ce papers

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The behaviour and design of cylindrically‐pinned stainless steel equal‐leg angle section members under compression and compression combined with strong‐axis bending are investigated herein. Numerical models are developed by means of shell finite element modelling formulated within ABAQUS and validated against experimental data. A numerical parametric study is then presented considering both hot‐rolled and cold‐formed stainless steel equal‐leg angle section columns alongside beam‐columns with a wide range of cross‐section and member geometries. Finally, new design proposals for pin‐ended stainless steel equal‐leg angle section members under compression and compression plus major‐axis bending are developed and verified against the results of physical experiments and numerical simulations. The proposed design rules are shown to offer substantially more accurate and consistent resistance predictions compared to existing codified design rules.

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