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Finite Element Analysis of Cold-Formed Steel Structural Members with Performations Subjected to Compression Loading

MacDonald M., Kulatunga M. P.

Mechanics and Mechanical Engineering

2013

Vol. 17, nr 2

127--139

Numerical investigation on the behaviour of cold–formed thin–walled steel structural members with perforations is presented in this paper. Many structural cold–formed steel members are provided with cut–outs to accommodate electrical, plumbing, and heating services and so on. Due to the position of cut–outs, the elastic stiffness and ultimate strength of a structural member could be varied. The primary interest of this paper is to study the possible buckling occurrence on cold formed steel structural sections used as columns with perforations. Initially, a reliable finite element model was generated using the ANSYS software package to be able to predict the ultimate strength of cold–formed structural sections and to obtain a better understanding of the buckling failure behaviour highlighted, and conclusions will be drawn on this basis.