Failure Mechanics of Uniformly Compressed Thin-Walled Box-Section Struts

Abstract:

It is well known that the structural performance of thin-walled compression members is subject to the effects of local buckling and material yielding. Due to these effects, the compressive carrying capability of short strut members can be significantly reduced. This paper employs finite element simulation to examine the post-buckled response of thin-walled box-sections that covers complete loading history of the compression struts from the onset of elastic local buckling through the nonlinear elastic and elasto-plastic post-buckling phases of behaviour up to final collapse and unloading. A detailed account of the growth and redistribution of stresses on the surfaces is given in the paper. The results from finite element simulations are shown to compare well with the analytical method of analysis.

• Periodical: Applied Mechanics and Materials (Volume 225)
• Pages: 172-177
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.225.172
• Online since: November 2012
• Authors: Noorfaizal Yidris, J. Loughlan, Mohamed Thariq Hameed Sultan, Azmin Shakrine Mohd Rafie
• Keywords: Box-Sections, Buckling, Natural Waviness Boundary Condition, Post-Buckling, Stress-Free Boundary Condition, Thin-Walled Structures

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