Finite Element Analysis on Torsion Behaviour for Tapered Steel Section with Perforation
A study of finite element analysis (FEA) on torsion behaviour for tapered steel section with perforation is presented in this paper. The attention was paid mainly to firstly determine the effect of the perforation on the torsion behaviour of tapered steel section and to know an optimal section of tapered steel section with perforation under torsion loading based on the results obtained from FEA of LUSAS software. Five (5) variables such as opening shape, web thickness and flange thickness were identified and analysed to know the effect on torsional rotation of tapered steel section. A total of one hundred and twenty (120) of finite element (FE) models were than employed in this analysis including tapered steel section without perforation. The results were expressed in terms of displacement and torsional resistance (TR). Based on the analysis result, it was clearly showed that there was no improvement on the engineering properties and performance of tapered steel section with perforation in term of TR. The presence of web opening will result in reduction of TR. It is concluded that all of the variables will affect the TR. In addition, weight was reduced as the material volume was reduce with the present of perforation.
KeywordsTapered steel section Perforated steel beams Torsion Volume reduction Finite element analysis LUSAS 14.0
The authors appreciatively acknowledge the financial support of Universiti Sains Malaysia (USM) during this research. The research was also made possible by the Bridging Research Grant (Account Number: 1001/PAWAM/6316234) provided by Universiti Sains Malaysia.
- 12.Haidarali K, Van Impe R, Lagae G, De Strycker M (2007) Modelling of cold-formed steel beams under local buckling or combined local/distortional buckling. Thin-Walled Struct 49:584–590Google Scholar
- 15.Denan F, Osman MH, Saad S (2010) The study of lateral torsion buckling behavior of beam with trapezoid web steel section by experimental and finite element analysis. J IJRRAS 2:232–240Google Scholar
- 18.Timoshenko SP, Gere JM (1936) Theory of elasticity stability. McGraw-Hill, New YorkGoogle Scholar
- 19.Trahair NS, Bradford MA (1991) The behaviour and design of steel structures, revised, 2nd edn. Chapman & Hall, London, EnglandGoogle Scholar
- 20.Nethercot DA, Salter PR, Malik AS (1989) Design of members subject to combined bending and torsion. Steel Construction Institute, Ascot, EnglandGoogle Scholar
- 21.Heins CP, Seaberg PA (1983) Torsional analysis of steel members. American Institute of Steel Construction, Inc, Chicago, ILGoogle Scholar