Inelastic post-buckling behavior of tubular struts

Siu Lai Chan, Sritawat Kitipornchai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

34 Citations (Scopus)


A numerical procedure for tracing the inelastic post-buckling load-deflection path of tubular struts is proposed. The analysis accounts simultaneously for both the geometrical and material nonlinearities with special emphasis placed on the influence of strain-unloading. An iterative numerical arc-length technique is employed in the solution procedure, but once strain-unloading is detected, iterations are suppressed and the procedure converted to a pure incremental method with arc-length constraint only. Predictions of the maximum loads and of the post-buckling load-deflection paths using the proposed approach compared very well with other published analytical results and with tests. The approach is simple and may be applied to general thin-walled cross sections and to include cyclic loading.
Original languageEnglish
Pages (from-to)1091-1105
Number of pages15
JournalJournal of Structural Engineering (United States)
Issue number5
Publication statusPublished - 1 Jan 1988

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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