Stability Analysis of Thin-Walled Structures Subjected to Thermal and Mechanical Loads

Marko Bojanić

An attention in this work is focused on stability analysis of the thin-walled isotropic and composite structures. A finite element model that accounts for both geometric and material nonlinearities is included. An inelastic material model for isotropic plates and shells is considered. The effects of material or thotropy on geometric nonlinear behavior are analyzed too. For this purpose high-quality 4-node shell finite elements are used. Present finite element solutions are compared with available analytic, numerical and experimental results. Numerical examples demonstrate the validity of the computation procedure in domains geometric and material nonlinear problems.

Key words: thin-walled structures, isotropic materials, composite materials, thermal loading, mechanical loading, structure stability, stability analysis, finite elements, plates, shells.

FUL TEXT

Scientific Technical Review ,-   3-4, 2008