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

1 Citation (Scopus)

Abstract

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, incorporataing 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 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 behavior of isolated cold-formed SHS columns, fabricated RHS parabolic fixed end arches, and double chord SHS trusses having different joint configurations.
Original languageEnglish
JournalResearch Report Series - University of Queensland, Department of Civil Engineering
Issue numberCE79
Publication statusPublished - 1 Jan 1987
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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