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Global Sensitivity Analysis of Lateral-torsional Buckling Resistance Based on Finite Element Simulations

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F16%3APU122630" target="_blank" >RIV/00216305:26110/16:PU122630 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1016/j.engstruct.2016.12.032" target="_blank" >https://doi.org/10.1016/j.engstruct.2016.12.032</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.engstruct.2016.12.032" target="_blank" >10.1016/j.engstruct.2016.12.032</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Global Sensitivity Analysis of Lateral-torsional Buckling Resistance Based on Finite Element Simulations

  • Original language description

    The article examines a hot-rolled steel I-beam subjected to lateral-torsional buckling (LTB) due to bending moment. The paper describes a non-linear finite element (FE) model and numerical approximation and simulation methods used for the global sensitivity analysis of the static resistance of a beam under major axis bending. The presented geometrically and materially non-linear FE model based on solid elements models in detail the LTB and the effects of initial imperfections on the ultimate limit state of a steel beam. Simulation runs of random imperfections are generated using the Latin Hypercube Sampling (LHS) method. Polynomial approximation of the model output helped minimise the number of runs of the nonlinear finite element model. The approximation polynomial then facilitated the evaluation of sensitivity indices using a high number of simulation runs. The relationships between the slenderness and the first and second-order sensitivity indices are plotted in graphs. The graphs show the results of global sensitivity analyses of stochastic effects of initial imperfections and residual stress on the resistance of the investigated steel beam.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20102 - Construction engineering, Municipal and structural engineering

Result continuities

  • Project

    <a href="/en/project/GA14-17997S" target="_blank" >GA14-17997S: Global Sensitivity Analysis in Nonlinear Structural Mechanics</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    ENGINEERING STRUCTURES

  • ISSN

    0141-0296

  • e-ISSN

    1873-7323

  • Volume of the periodical

    2017

  • Issue of the periodical within the volume

    134

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    11

  • Pages from-to

    37-47

  • UT code for WoS article

    000394062400004

  • EID of the result in the Scopus database

    2-s2.0-85007049698