Geometric and material nonlinear analysis of structures comprising rectangular hollow sections

S. Kitipornchai, F. G.A. Al-Bermani, Siu Lai Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

30 Citations (Scopus)


This paper presents a nonlinear finite element analysis of structures comprising thin-walled rectangular hollow sections. Nonlinearities due to both the change of geometry and material yielding are included, incorporating also the effects of strain-unloading. The geometry and the stiffness of the elements are modified and used to update the structure tangent stiffness matrix. An iterative numerical procedure combining the arc-length and the work methods is employed for the solution of the incremental equation of equilibrium. The method has been applied successfully to predict the nonlinear load-deflection behaviour of isolated cold-formed SHS columns, fabricated RHS parabolic fixed end arches, and double chord SHS trusses having different joint configurations.
Original languageEnglish
Pages (from-to)13-23
Number of pages11
JournalEngineering Structures
Issue number1
Publication statusPublished - 1 Jan 1988


  • arch
  • cold-formed section
  • column
  • finite element
  • non-linear analysis
  • post-buckling
  • strain-unloading
  • structural engineering
  • truss

ASJC Scopus subject areas

  • Civil and Structural Engineering


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