Numerical Modeling of Stainless Steel Structural Components—A Consistent Approach
By L. Gardner, D. Nethercot. 2004
423 citations recorded by the source corpus.
This article describes numerical modeling of the structural response of stainless steel hollow sections. The aim of the investigation was to develop a consistent approach to the modeling of stainless steel structures. The developed finite element models are more sophisticated than any other reported attempts to model stainless steel structural behavior, with general expressions defined for material stress-strain behavior, enhanced strength corner properties, initial geometric imperfection modes, and amplitudes (local and global), and residual stresses. The general expressions define a consistent means of describing the key input parameters. A compound (two-stage) Ramberg-Osgood model is developed to describe stainless steel material stress-strain behavior in tension and compression. For the prediction of enhanced strength corner properties, a simple, though accurate model is proposed. Characterization of local plate imperfection amplitudes is described whereby a model originally devised for hot-rolled carbon steel cross sections was recalibrated and applied to stainless steel cross sections. Numerical prediction of the key performance measures from tests is achieved with a high degree of accuracy: On average, ultimate load was predicted to within 3 percent and with a low standard deviation; deformation at ultimate load was within 6 percent, but exhibited a higher standard deviation; and the general form of the load-deformation response and the failure modes were similar.
Subfields: Building and Construction, Civil and Structural Engineering
View Paper: https://www.semanticscholar.org/paper/a94d46a02545ff2629b23be0482517900958003b
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Citations in the corpus
- Flexural behaviour of hot-finished high strength steel square and rectangular hollow sections (2016, neutral): “Five values of local geometric imperfection amplitudes were examined: t / 10 , t / 50 and t / 100 , the maximum measured imperfections ω 0 , as given in Table 4, and a value calculated from the predictive model of Dawson and Walker [44], as modified by Gardner and Nethercot [43], defined by Equation 6”
- COMPUTATIONAL MODELING OF COLD-FORMED STEEL (2010, background): “Magnitudes may be “fit” so that predicted strength matches a test (e.g., [ 16 , 17]) or so that instabilities under study are appropriately triggered [18].”
- Structural response and continuous strength method design of slender stainless steel cross-sections (2017, result): “Measured corner material properties were also assigned to the curved corner portions of the sections, and to the adjacent flat portions extending beyond the corners to a distance equal to two times the cross-section thickness, in accordance with the previous finding [72,73] that both of the aforemen”
- Cyclic testing and numerical modelling of carbon steel and stainless steel tubular bracing members (2010, methodology): “The amplitudes of the initial imperfections of stainless steel specimens were taken from the predictive formula proposed by Dawson and Walker [31] and calibrated by Gardner and Nethercot [29] as given by Eq.”
- Structural design of stainless steel concrete filled columns (2008, result): “Notable early studies were reported by Rasmussen and Hancock [26, 27] and Talja and Salmi [28], who investigated the compressive and flexural response of stainless steel hollow sections, whilst a series of more recent investigations have now been performed [29, 30, 31, 32, 33].”
- Cross-section stability of lean duplex stainless steel welded I-sections (2013, methodology): “most slender) elements in each case), (3) t/1000 and (4) the imperfection amplitude ωD&W derived from the predictive model of Dawson and Walker [26] as modified by Gardner and Nethercot [27] defined by Eq.”
- Testing and numerical modelling of lean duplex stainless steel hollow section columns (2009, methodology): “The FE simulations followed the proposals regarding numerical modelling of stainless steel components reported in [25, 26].”
- Simulation of geometric imperfections in cold-formed steel members using spectral representation approach (2012, background): “…of the members as the magnitude and the local and distortional buckling mode shapes as the distributionof these imperfections [Schafer and Pekoz 1998, Chou et al. 2000, Gardner and Nethercot 2004, Camotim et al. 2005, Ashraf et al. 2007, Dinis et al. 2007, Moen et al. 2010, Pham and Hancock 2010].”
- Comparative experimental study of hot-rolled and cold-formed rectangular hollow sections (2010, background): “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 [5-7], cold-formed steel sections [8-11] and cold-formed stainless steel sections [12-15].”