Abstract

This paper presents results of a rigorous nonlinear finite element technique for the stability analysis of ring-stiffened steel tubes under external pressure. Large deformation, plasticity, as well as residual stresses and imperfections, are taken into account. Both internal and external stiffeners are simulated. A study of various parameters which affect pressure capacity is summarized, along with a comparison with available experimental data.

Issue Section:
Research Papers
Topics:
External pressure, Stability, Deformation, Finite element analysis, Plasticity, Pressure, Residual stresses, Steel
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