Local buckling strength of stainless steel beam webs subjected to a stress gradient

M. Dundu, P. Van Tonder

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

This paper investigates the local buckling strength of stainless steel beam webs, subjected to a stress gradient. Due to relatively low values of the proportional limit, stainless steels resist loads at stresses beyond the proportional limit. The design of such steels is therefore influenced by its inelastic buckling strength. To determine this strength, plasticity reduction factors are used in local buckling calculations to account for inelastic post-buckling behavior. Steels chosen for this study are AISI Type 304, 410 and Type 3CR12 stainless steels. Dimensions of the sections were selected to promote local buckling, and inhibit other forms of buckling, such as distortional and lateral-torsional buckling. The depth of the web was varied in order to study channels of different slenderness ratio. It was concluded in this investigation that an acceptable prediction of the local buckling strength of stainless steel beam webs may be obtained through the use of the effective width approach, using no plasticity reduction factor.

Original languageEnglish
Pages (from-to)48-55
Number of pages8
JournalThin-Walled Structures
Volume77
DOIs
Publication statusPublished - Apr 2014

Keywords

  • Cold-formed channels
  • Effective width approach
  • Local buckling
  • Plasticity reduction factor
  • Stainless steel beams
  • Stress gradient

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering

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