Distortional Buckling of Cold-Formed Stainless Steel Sections: Experimental Investigation
Publication: Journal of Structural Engineering
Volume 132, Issue 4
Abstract
This paper describes the experimental investigation of cold-formed, thin-walled stainless steel sections subject to distortional buckling under compression. Austenitic 304, ferritic 430 stainless steel, and ferritic-like 3Cr12 chromium weldable steel sheets were brake-pressed into simple-lipped channels and lipped channels with intermediate stiffeners. A full set of coupon tests reveal material nonlinearity with low proportionality stress and low -parameter, anisotropy, and yield strength enhancements up to 2.33 times due to cold-forming. A total of 19 channel sections were tested and failed by distortional buckling at average ultimate stresses greater than the proportionality stress, and hence were influenced by material nonlinearity, with greater nonlinearity evident for sections with intermediate stiffeners. This paper presents comprehensive procedures to determine stainless steel mechanical properties and their influence on the distortional buckling mode of cold-formed sections. Experimental data required to calibrate finite element models and assess current design guidelines for distortional buckling of stainless steel compression members are provided herein.
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Acknowledgments
Financial support for this project was provided by the Natural Sciences and Engineering Research Council of Canada (NSERC), the International Postgraduate Research Scholarship (IPRS) Scheme of Australia, the Centre for Advanced Structural Engineering (CASE) of the University of Sydney, and funds provided by the University of Sydney under the Research and Development Scheme. The writers are grateful for further financial support provided by Outokumpu Stainless Research Foundation, Sweden, and the facilities provided by the Technical University of Luleå, Sweden. Comments on metallurgical properties and phase transformations offered by Associate Professor Andrew Abel are appreciated. The writers are indebted to Austral Wright Metals for providing ferritic 430 and chromium weldable 3Cr12 materials and Atlas Steels for providing the austenitic 304 material. Further support was given by the Australian Stainless Steel Development Association in the supply and coordination of testing materials.
References
Australian Standard/New Zealand Standard. (1991). “Methods for tensile testing of metals.” AS:1391, Standards Australia, Sydney, Australia.
Australian Standard/New Zealand Standard. (2001). “Cold-formed stainless steel structures.” AS/NZS:4673, Standards Australia, Sydney, Australia.
Buitendag, Y., and van den Berg, G. J. (1994). “The strength of partially stiffened stainless steel compression members.” Proc., 12th Specialty Conf. on Cold-Formed Steel Structures, St. Louis.
Galambos, T. V. (1998). Guide to stability design criteria for metal structures, Wiley, New York.
Lacombe, P., Baroux, B., and Beranger, G., and (1993). Stainless steels, J. H. Davidson and J. B. Lindquist, translator, Les Editions de Physique, France.
Lecce, M., and Rasmussen, K. J. R. (2005). “Experimental investigation of the distortional buckling of cold-formed stainless steel sections.” Research Rep. No. 844, Department of Civil Engineering, Univ. of Sydney, Sydney.
Lecce, M., and Rasmussen, K. J. R. (2006). “Distortional buckling of cold-formed stainless steel sections: Finite element modeling and design.” J. Struct. Eng., 132(4), 505–514.
Mangonon, L. P., and Thomas, G. (1970a). “The martensite phase in 304 stainless steel.” Metall. Trans., 1(6), 1577–1586.
Mangonon, L. P., and Thomas, G. (1970b). “Structure and properties of thermal-mechanically treated 304 stainless steel.” Metall. Trans., 1(6), 1587–1594.
Nagy, E., Mertinger, V., Tranta, F., and Solyom, J. (2004). “Deformation induced martensitic transformation in stainless steels.” Mater. Sci. Eng., A, 378(1-2), 308–313.
Papangelis, J. P., and Hancock, G. J. (1995). “Computer analysis of thin-walled structural members.” Comput. Struct., 56(1), 157–176.
Prola, L. C., and Camotim, D. (2002). “On the distortional buckling of cold-formed lipped channel steel columns.” Proc., SSRC 2002 Annual Stability Conf., Seattle, 571–590.
Rasmussen, K. J. R. (2003). “Full-range stress-strain curves for stainless steel alloys.” J. Constr. Steel Res., 59(1), 47–61.
Rasmussen, K. J. R., Burns, T., Bezkorovainy, P., and Bambach, M. R. (2003). “Numerical modelling of stainless steel plates in compression.” J. Constr. Steel Res., 59(11), 1345–1362.
Silvestre, N., and Camotim, D. (2004). “Local-plate and distortional post-buckling behavior of cold-formed steel lipped channel columns with intermediate stiffeners.” Proc., 17th Int. Specialty Conf. on Cold-Formed Steel Structures, University of Missouri-Rolla, Orlando, 1–18.
van den Berg, G. J. (2000). “The effect of the non-linear stress-strain behaviour of stainless steels on member capacity.” J. Constr. Steel Res., 54(1), 135–160.
Yang, D., and Hancock G. J.(2004). “Compression tests of high strength steel channel columns with interaction between local and distortional buckling.” J. Struct. Eng., 130(12), 1954–1963
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 132 • Issue 4 • April 2006
Pages: 497 - 504
Copyright
© 2006 ASCE.
History
Received: Feb 1, 2005
Accepted: Apr 20, 2005
Published online: Apr 1, 2006
Published in print: Apr 2006
Notes
Note. Associate Editor: Benjamin W. Schafer
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