Structural Engineering and Mechanics

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Local buckling behaviour of steel plate elements supported by a plastic foam material

  • Mahendran, M. (Physical Infrastructure Centre, School of Civil Engineering, Queensland University of Technology) ;
  • Jeevaharan, M. (Physical Infrastructure Centre, School of Civil Engineering, Queensland University of Technology)
  • Published : 1999.05.25
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Abstract

Sandwich panels comprising steel facings and a polystyrene foam core are increasingly used as roof and wall claddings in buildings in Australia. When they are subjected to loads causing bending and/or axial compression, the steel plate elements of their profiled facing are susceptible to local buckling. However, when compared to panels with no foam core, they demonstrate significantly improved local buckling behaviour because they are supported by foam. In order to quantify such improvements and to validate the use of available design buckling stress formulae, an investigation using finite element analyses and laboratory experiments was carried out on steel plates that are commonly used in Australia of varying yield stress and thickness supported by a polystyrene foam core. This paper presents the details of this investigation, the buckling results and their comparison with available design buckling formulae.

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References

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