Global sensitivity analysis of lateral-torsional buckling resistance based on finite element simulations

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• 作者：Zdeněk Kala ; ^{kala.z@fce.vutbr.cz} ; Jan Vale&scaron ; ^{vales.j@fce.vutbr.cz}
• 关键词：Sensitivity analysis ; Stability ; Reliability ; Lateral-torsional buckling ; Steel ; Beam ; Imperfections ; Out-of-straightness ; Residual stress ; FE modelling
• 刊名：Engineering Structures
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：134
• 期：Complete
• 页码：37-47
• 全文大小：1564 K
• 卷排序：134

文摘

Geometrically and materially non-linear finite element model using solid finite elements. Stochastic models of initial imperfections and residual stress. Description of the evaluation of lateral-torsional buckling resistance as a model output. Polynomial approximation of the model output for efficient calculation of the indices of global sensitivity analysis. Evaluation of the global sensitivity analysis of the approximated model output.