Steel: A History of Strength. A Future of Possibilities.

Canadian Institute of Steel Construction

   

CJCE Abstracts for 2006

 

Canadian Journal of Civil Engineering
Vol. 33: 421-439 (no. 4, 2006 )

Nonorthogonal solution for thin-walled members – a finite element formulation

R. Emre Erkmen and Magdi Mohareb

Conventional solutions for the equations of equilibrium based on the well-known Vlasov thin-walled beam theory uncouple the equations by adopting orthogonal coordinate systems. Although this technique considerably simplifies the resulting field equations, it introduces several modelling complications and limitations. As a result, in the analysis of problems where eccentric supports or abrupt cross-sectional changes exist (in elements with rectangular holes, coped flanges, or longitudinal stiffened members, etc.), the Vlasov theory has been avoided in favour of a shell finite element

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Keywords: open sections, warping effect, finite element,thin-walled beams, asymmetric sections.

 

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