Flexural buckling of welded austenitic and duplex stainless steel I-section columns

Liu, Yang; Zhao, Menghan; Chan, Tak Ming; Shang, Fan; Xu, Dongchen

doi:10.1016/j.jcsr.2016.04.007

Cited by 46 publications

(52 citation statements)

References 23 publications

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“…Complementary experimental programme were conducted and the corresponding finite element modelling methodologies were validated in early investigations [20,21]. The key parameters, including initial global geometric imperfections, residual stress, local width-to-thickness ratio, material properties and non-dimensional slenderness ratio were assessed.…”

Section: Discussionmentioning

confidence: 99%

“…The residual stress measurements were conducted in [20,21] and the corresponding models were proposed as shown in Figure 2. This section compares the FE results with and without the consideration of residual stress and the results are summarized in Table 3 and Table 4 respectively.…”

Section: Residual Stressmentioning

confidence: 99%

“…Experimental programme, followed by the numerical investigation, was discussed in two companion papers [20,21]. Experimental investigation on twenty-two austenitic and duplex stainless steel welded I-section compression members were conducted by Yang et al [20] while twelve austenitic and duplex welded stainless steel box-section columns were tested by Yang et al [21].…”

Section: Introductionmentioning

confidence: 99%

“…In conjunction with the previously conducted experimental studies [20,21], a numerical modeling programme was performed using the general-purpose finite element analysis package ANSYS. The aims of the numerical investigations were initially to replicate the full experimental load-deformation curves and to assess the sensitivity of the FE models to extensive input parameters, and subsequently to conduct parametric studies to generate further structural performance data to supplement the experimental results.…”

Section: Introductionmentioning

confidence: 99%

“…The aims of the numerical investigations were initially to replicate the full experimental load-deformation curves and to assess the sensitivity of the FE models to extensive input parameters, and subsequently to conduct parametric studies to generate further structural performance data to supplement the experimental results. The accuracy of the FE models was assessed in the companion paper [20,21] by comparing the key results, full load-deformation histories and failure modes obtained from tests with those derived from the numerical simulations.…”

Section: Introductionmentioning

confidence: 99%

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Flexural Buckling Design of Fabricated Austenitic and Duplex Stainless Steel Columns

Liu

Zhao

Chan

et al. 2018

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This paper presents a numerical investigation on the flexural buckling design of fabricated austenitic and duplex stainless steel columns. Complementary experimental investigation was conducted and the numerical modelling methodology was validated against the complementary experimental database. The target parametric study was carried out to assess the influence of initial geometric imperfections, residual stress patterns, mechanical properties, local cross-section slenderness and global slenderness on the structural behaviour. A total of 968 FEA results were developed which included 301 welded box-section and 667 welded I-section columns. The resulting structural performance data were collated to assess the reliability of the current design provisions -EN 1993-1-4 and ASCE 8-02. Results indicate the conservatism on current practices. Improved design provisions were proposed based on the Direct Strength Method, ASCE 8-02 and Perry formulae. Keywords

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Section: Discussionmentioning

confidence: 99%

Section: Residual Stressmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Flexural Buckling Design of Fabricated Austenitic and Duplex Stainless Steel Columns

Liu

Zhao

Chan

et al. 2018

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Development of Flexural Buckling Rules for the New AISC Stainless Steel Design Specification

Meza¹,

Baddoo

Gardner

2021

ce papers

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This paper presents the development of flexural buckling curves for austenitic and duplex stainless steel welded I‐sections and structural hollow sections, which are proposed for implementation in the new AISC stainless steel specification. The proposed buckling curves were developed following the same type of reliability analysis employed to develop the flexural buckling curve included in AISC 360 Specification for Structural Steel Buildings for carbon steel, considering all the experimental data available in the literature and a large number of numerical results. In order to facilitate their implementation, the proposed curves follow a similar form as the AISC‐type of curve included in AISC 360, with the only differences being the addition of a yield plateau and the values of selected coefficients used to adjust the shape of the curves. Three different buckling curves are proposed: one buckling curve for circular hollow section (CHS) columns and I‐section columns buckling about the major axis; one for rectangular hollow section (RHS) columns; and one for I‐section columns buckling about the minor axis. The proposed curves represent a significant improvement with respect to the currently available stainless steel flexural buckling curve included in AISC Design Guide 27, providing an increase in strength predictions of up to 55%.

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Experimental study of welded austenitic stainless steel I‐section beam‐columns

et al. 2021

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Stainless steel beam‐columns were experimentally and numerically investigated in this study. All members were subjected to compression and major axis bending induced by an eccentricity of the compressive load. The loading eccentricities for the tests varied to provide a wide range of bending moment‐to‐axial load ratios. The experimental program covers 10 welded I‐section specimens made of austenitic stainless steel grade EN 1.4301 (AISI 304L). Material tensile coupon tests and initial geometric imperfection measurements are also described in detail. Measurements of initial imperfections were performed using two different methods, using a mechanical dial and laser scanning. The test results were subsequently used for a validation of a finite element (FE) model, developed in ABAQUS software to replicate the beam‐column behavior. The accuracy of the models with the two combinations of local and global imperfections were evaluated by comparison with the test results.

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Flexural buckling of welded austenitic and duplex stainless steel I-section columns

Cited by 46 publications

References 23 publications

Flexural Buckling Design of Fabricated Austenitic and Duplex Stainless Steel Columns

Flexural Buckling Design of Fabricated Austenitic and Duplex Stainless Steel Columns

Development of Flexural Buckling Rules for the New AISC Stainless Steel Design Specification

Experimental study of welded austenitic stainless steel I‐section beam‐columns

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