Advanced Steel Construction

Vol. 6, No. 1, pp. 662-677 (2010)


AN INVESTIGATION ON THE POST-LOCAL-BUCKLING ANALYSIS

OF I-SECTION STRUTS USING FINITE STRIP METHOD

 

H.R. Ovesy 1 ,*, J. Loughlan 2 and S.A.M. Ghannadpour 3

1 Aerospace Engineering Department and Centre of Excellence in Computational Aerospace Engineering, Amirkabir University of Technology, Tehran, Iran

2 Department of Aeronautical and Automotive Engineering, Loughborough University, Leicestershire LE11 3TU, UK

3 Space Engineering Dept., Faculty of New Technologies and Energy Engineering, Shahid Beheshti University, G.C., Evin, 1983963113, Tehran, Iran

*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 29 August 2008; Revised: 22 November 2008; Accepted: 26 November 2008

 

DOI:10.18057/IJASC.2010.6.1.9

 

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ABSTRACT

Two finite strip methods are developed for predicting the geometrically non-linear response of I-sections with simply supported ends when subjected to uniform end shortening in their plane. Although the formulations of both finite strip methods are based on the concept of the principle of minimum potential energy, the first finite strip method utilizes a semi-energy finite strip, whereas in the second finite strip method (which is designated by the name full-energy finite strip method) all the displacements are postulated by the appropriate shape functions. Both finite strip methods are then applied to analyze the post-local-buckling behavior of some representative I-section struts.

 

KEYWORDS

Geometric Non-linear; Post-Local-Buckling; Semi-Energy; Finite Strip; I- Section


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