Faculty of Architecture, Civil Engineering and Geodesy, University of Banja Luka , Banja Luka , Bosnia and Herzegovina
Integral Inženjering a. d , Banja Luka , Bosnia and Herzegovina
Faculty of Architecture, Civil Engineering and Geodesy, University of Banja Luka , Banja Luka , Bosnia and Herzegovina
Faculty of Civil Engineering Subotica, University of Novi Sad , Novi Sad , Serbia
A non‐linear elastic‐plastic Generalised Beam Theory (GBT) is formulated and used to investigate the buckling behaviour of aluminium and stainless steel thin‐walled members. The analysis consists of calculation cross‐section (local) and member (global) deformations and has been shown to be a very efficient tool for analyzing local and global stability behavior of thin‐walled cold‐formed steel (isotropic) and composite (orthotropic) members. In this work particular attention is paid to the need to define the stability problem in terms of instantaneous elastic moduli. Verification of the proposed GBT, its unique features and capabilities are illustrated by the example of uniformly compessed rectangular plate of stainless steel.
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