Review article
https://doi.org/10.17794/rgn.2017.2.5
FUNDAMENTAL MODELS OF STRUCTURAL STABILITY
Antonia Jaguljnjak Lazarević
orcid.org/0000-0001-6479-686X
; Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, HR-10000 Zagreb, Croatia
Mario Uroš
; Faculty of Civil Engineering, University of Zagreb, Fra Andrije Kačića-Miošića 26, HR-10000 Zagreb, Croatia
Ana Čengija
; 2 Struge 22, HR-10000 Zagreb, Croatia
Abstract
In this paper, basic structural stability phenomena are described. After some general comments about stability in the field of civil engineering, four elementary sources of nonlinearity are mentioned: of equilibrium equations, strain (geometry) relations, material (stress-strain) law, force and displacement boundary conditions. Four fundamental stability models are analysed, both ideal (perfect) and with geometric imperfection. Besides geometrically exact theory, initial post-buckling behavior and linearization are briefly sketched. This paper is concluded with comments about the influence of plasticity.
Keywords
structural stability; buckling; bifurcation point; limit point; imperfection
Hrčak ID:
176199
URI
Publication date:
1.3.2017.
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