Interactive Resource icon  Bending Moment Resistance of Member with Slender Cross Section Part

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Description: The extrusion technique makes it possible to shape the cross section to minimize the influence of local buckling and compensate for the low elastic modulus of aluminium. In this example the compression flange of an welded girder is made of an extruded profile with a closed part which reduces the width-to-thickness (slenderness) of the cross section parts and at the same time increases the torsional stiffness of the flange and the whole beam. In the example it is possible to optimize the shape of the compression flange by increasing or decreasing the hollow part of the extrusion.
Keywords: cross section • extrusion • compression flange
Categories: Materials > Metals & alloys > Aluminium & alloys
Applications > Construction
Properties > Mechanical & thermal
Other topics > Design
Created by: MATTER, The University of Liverpool
Frans Soetens, TNO
Torsten Höglund, KTH Royal Institute of Technology, Stockholm
Contributions: Jürgen Hirsch, Hydro Aluminium Deutschland GmbH
Jan Rothe, Rio Tinto Alcan
Steinar Lundberg, Hydro Aluminium Structures, Karmoy
Marc Ryckeboer, Sapa
Published by: European Aluminium Association, Brussels
License: This resource is released under the Creative Commons Attribution Non-Commercial No Derivatives license (2.0 UK: England & Wales).
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Date created: 06 February 2009
Date added: 17 December 2009
Resource ID: 2568