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Publications
Gaspar, B., Teixeira, A.P. and Guedes Soares, C. (2016), “Sensitivity analysis of the IACS-CSR buckling strength requirements for stiffened panels”, Maritime Technology and Engineering 3, Guedes Soares, C. & Santos T. A., (Eds.), Taylor & Francis Group, London, UK, pp. 459-470
A sensitivity analysis of the IACS-CSR buckling strength requirements for stiffened panels under uniaxial compression is presented. The buckling strength requirements considered are defined on the basis of semi-empirical design formulations that account explicitly for three failure modes of the stiffened panel: uniaxial buckling of the plating between stiffeners, column buckling of stiffeners with attached plating and lateral-torsional buckling or tripping of stiffeners. A sample of deck stiffened panels obtained from a representative sample of double hull oil tanker designs is considered in the sensitivity analysis. Different local and global sensitivity analysis methods are used to compute sensitivity indices for the different stiffened panel designs and failure modes. The most important variables with respect to the contribution to the critical buckling stress variability are identified and the different local and global sensitivity indices compared.
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