Computational models and numerical assessment strategies were prepared in the framework of European rules for shell buckling (EN 1993-1-6) and were used to study the stability of a large set of cylindrical steel thin-shell tanks with structural openings, predicting behavioural changes in buckling and post-buckling response with variations in the cutout con-figuration (i.e. shape, size, location and number). Numerical estimates were related to the test data of previous experiments to explore critical design aspects, decoupling the roles played by material nonlinearity and geometric nonlinearity, as well as the contribution of initial geometrical imperfections in the buckling mechanism of axially compressed cylindrical thin-shells.
Influence of structural openings on the buckling strength of cylindrical shells under axial compression
Brunesi, E.;Nascimbene, R.;
2016-01-01
Abstract
Computational models and numerical assessment strategies were prepared in the framework of European rules for shell buckling (EN 1993-1-6) and were used to study the stability of a large set of cylindrical steel thin-shell tanks with structural openings, predicting behavioural changes in buckling and post-buckling response with variations in the cutout con-figuration (i.e. shape, size, location and number). Numerical estimates were related to the test data of previous experiments to explore critical design aspects, decoupling the roles played by material nonlinearity and geometric nonlinearity, as well as the contribution of initial geometrical imperfections in the buckling mechanism of axially compressed cylindrical thin-shells.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
