Experiments on stainless steel hollow sections—Part 1: Material and cross-sectional behaviour

Gardner, Leroy; Nethercot, D.A.

doi:10.1016/j.jcsr.2003.11.006

Cited by 381 publications

(247 citation statements)

References 10 publications

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“…The specimens were loaded between the two parallel end platens of the testing machine and four displacement transducers (LVDTs) were employed to measure average end-shortening. A similar testing arrangement has been successfully employed in previous studies [7,13]. Uniformity of corner strains (variation between strains at any corner from the average strain being less than 5%) at low load levels confirmed that the specimens were loaded concentrically.…”

Section: Stub Column Testsmentioning

confidence: 72%

“…The experimental set-up for the imperfection measurements employed in the present study was similar to that adopted by Schafer and Peköz [8] and Gardner and Nethercot [13] -each specimen was mounted on the bed of a milling machine where the flat surface provided a reference plane for the measurements. A displacement transducer, fitted in the head of the milling machine, was positioned at the centreline of each face of the specimen and driven along the length.…”

Section: Geometric Imperfection Measurementsmentioning

confidence: 99%

“…Direct comparisons between hot-rolled and cold-formed structural steel sections are relatively scarce, but many of the above properties have been studied in hot-rolled steel sections [5][6][7], cold-formed steel sections [8][9][10][11] and cold-formed stainless steel sections [12][13][14][15]. The influence of different production routes on the behaviour of structural carbon steel [16] and structural stainless steel [17][18][19] members, which tend to display a more pronounced response to cold-work, has also been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Comparative experimental study of hot-rolled and cold-formed rectangular hollow sections

Gardner

Saari

Wang

2010

Thin-Walled Structures

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Square and rectangular hollow sections are generally produced either by hot-rolling or coldforming. Cross-sections of nominally similar geometries, but from the two different production routes may vary significantly in terms of their general material properties, geometric imperfections, residual stresses, corner geometry and material response and general structural behaviour and load-carrying capacity. In this paper, an experimental programme comprising tensile coupon tests on flat and corner material, measurements of geometric imperfections and residual stresses, stub column tests and simple and continuous beam tests is described. The results of the tests have been combined with other available test data on square and rectangular hollow sections and analysed. Enhancements in yield and ultimate strengths, beyond those quoted in the respective mill certificates, were observed in the corner regions of the cold-formed sections -these are caused by cold-working of the material during production, and predictive models have been proposed. Initial geometric imperfections were generally low in both the hot-rolled and cold-formed sections, with larger imperfections emerging towards the ends of the cold-formed members -these were attributed largely to the release of through thickness residual stresses, which were themselves quantified. The results of the stub column and simple bending tests were used to assess the current slenderness limits given in Eurocode 3, including the possible dependency on Gardner, L., Saari, N. and Wang, F. (2010) Comparative experimental study of hot-rolled and cold-formed rectangular hollow sections. Thin-Walled Structures. 48(7), 495-507. 2 production route, whilst the results of the continuous beam tests were evaluated with reference to the assumptions typically made in plastic analysis and design. Current slenderness limits, assessed on the basis of bending tests, appear appropriate, though the Class 3 slenderness limit, assessed on the basis of compression tests, seems optimistic. Of the features investigated, strain hardening characteristics of the material were identified as being primarily responsible for the differences in structural behaviour between hot-rolled and coldformed sections.

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Section: Stub Column Testsmentioning

confidence: 72%

Section: Geometric Imperfection Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative experimental study of hot-rolled and cold-formed rectangular hollow sections

Gardner

Saari

Wang

2010

Thin-Walled Structures

Self Cite

182

127

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show abstract

“…The adopted material model is a compound Ramberg-Osgood [33,34] formulation, with the second stage of the model utilising the 1.0% proof stress σ1.0. Two-stage material models for stainless steel have been developed and studied by a number of authors [22,[35][36][37][38]. The material parameters given in Tables 1 and 2 were averaged for each nominal cross-section size and applied uniformly to each model in the true stress true -log plastic strain pl ln  format, as required by ABAQUS [32] and defined by Eqs.…”

Section: Numerical Modellingmentioning

confidence: 99%

“…the yield strength) on the stress level that can be attained by a cross-section. Despite the absence of such a limit for stainless steel, due to the rounded nature of its material response [35][36][37]43], the same approach is followed by Eurocode 3: Part 1.4 [17] for the treatment of local buckling in stainless steel elements, so that consistency between carbon steel and stainless steel design is maintained.…”

Section: Cross-section Classificationmentioning

confidence: 99%