FUNDAMENTAL MODELS OF STRUCTURAL STABILITY

Rudarsko-Geolosko-Naftni Zbornik

Čengija, Ana¹  UroÅ¡, Mario²  Jaguljnjak Lazarević, Antonia³ 

[1] 2 Struge 22, HR-10000 Zagreb, Croatia;Faculty of Civil Engineering, University of Zagreb, Fra Andrije Kačića-MioÅ¡ića 26, HR-10000 Zagreb, Croatia;Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, HR-10000 Zagreb, Croatia

关键词: structural stability;    buckling;    bifurcation point;    limit point;    imperfection;   

DOI  :  10.17794/rgn.2017.2.5

学科分类：地质学

来源: Sveuciliste u Zagrebu * Rudarsko Geologsko Naftni Fakultet / University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering

【 摘 要 】

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.

【 授权许可】

Unknown