Plastic buckling of dented steel circular tubes under axial compression: an experimental study

Tohid Ghanbari Ghazijahani*, Hui Jiao, Damien Holloway

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

This paper examines the effect of large local imperfections, known as dents, on the plastic buckling capacity of short steel tubes under axial compression. A total of 11 tests on such short columns were carried out. The specimens were indented through a separate process and the ultimate axial capacity was subsequently obtained through compression tests. Dent imperfections with various depths were introduced to different locations on the body of the specimens. Plastic buckling modes as well as the ultimate capacity of the specimens were thoroughly investigated. The adverse effect of such a local damage on the load carrying capacity was quantified for different values and types of imperfections.

Original languageEnglish
Pages (from-to)48-54
Number of pages7
JournalThin-Walled Structures
Volume92
DOIs
Publication statusPublished - Jul 2015
Externally publishedYes

Keywords

  • Steel CHS tubes
  • Plastic buckling
  • Dent imperfection
  • Axial compression

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