Torsion tests on small and large-scale RHS with circular wall cut-outs

Ridley-Ellis, Daniel; Owen, J S; Davies, G

Abstract

The results of small and large-scale torsion tests on rectangular section tubes with circular wall perforations are presented and discussed. Perforations are shown to cause the torsional resistance to be re-duced by up to 60% and stiffness to be reduced by up to 40%. The perforated zone is shown to be much more flexible than the unperforated section, which results in severe deformations in this region. Small holes cause small reductions in the torsional resistance and stiffness, but in some instances result in a large reduction in the torsional ductility of the member. The experimental results are favourably compared to the predictions of finite element models, which are then used to demonstrate the importance of the boundary conditions for the asymmetrical cases, and to study in more detail the stress distributions around the openings.

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: 10th Intl Symp on Tubular Structures (ISTS)
• Start Date: Sep 18, 2007
• End Date: Sep 20, 2007
• Publication Date: Sep 18, 2007
• Deposit Date: Feb 19, 2008
• Publicly Available Date: Feb 19, 2008
• Peer Reviewed: Peer Reviewed
• Pages: 267-276
• ISBN: 9058095525
• Keywords: Rectangular hollow sections; Circular holes; Torsion tests; Structural properties; Structural engineering
• Public URL: http://researchrepository.napier.ac.uk/id/eprint/1962
• Contract Date: Feb 19, 2008