Original scientific paper
Non-linear thermal buckling analysis of thin-walled beam structures
Igor Pešić
; Faculty of EngineeringUniversity of Rijeka
Domagoj Lanc
; Department of Engineering Mechanics, Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka
Goran Turkalj
; Department of Engineering Mechanics, Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka
Abstract
The paper presents an algorithm for thermal buckling analysis of thin-walled beam-type structures. One-dimensional finite element is employed under assumptions of large displacements, large rotation effects but small strains. Stability analysis is performed in load deflection manner using co-rotational formulation. The cross- section mid-line contour is assumed to remain not deformed in its own plane and the shear strains of middle surface are neglected. The material properties of the beam are temperature-dependent. Results are validated on test examples.
Keywords
thermal buckling; stability; thin-walled beams; finite elements
Hrčak ID:
146988
URI
Publication date:
13.10.2015.
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