Initial imperfections for fea of tubular beams based on validated experiment results

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Abstract

The experiment data available on 4-point bending experiments performed in Aus-tralia and Europe on tubular section beams are validated by FEA. Large scattering of available experiment results is investigated by detailed analysis of different geometrical imperfections. Loading set-up is analysed through modelling of welding induced imperfections. It is found that the welding induced imperfections lead to more accurate prediction of the local buckling failure modes and the rotation capacity than the traditionally modelled geometrical Eigen-mode imperfections. Also the influence of measured residual stresses is examined.
Original languageEnglish
Title of host publicationThe International Colloquium on Stability and Ductility of Steel Structures
Subtitle of host publicationTimisoara, Romania
EditorsD. Dubina, V. Ungureanu
PublisherWiley
Pages1-8
Number of pages8
ISBN (Print)978-92-9147-133-1
Publication statusPublished - 2016
EventThe International Colloquium on Stability and Ductility of Steel Structures - Timisoara, Romania
Duration: 30 May 20161 Jun 2016

Conference

ConferenceThe International Colloquium on Stability and Ductility of Steel Structures
Abbreviated titleSDSS 2016
CountryRomania
CityTimisoara
Period30/05/161/06/16

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