Variance-Based Sensitivity Analysis of Stability Problems of Steel Structures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F10%3APU90725" target="_blank" >RIV/00216305:26110/10:PU90725 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Variance-Based Sensitivity Analysis of Stability Problems of Steel Structures
Original language description
The present paper deals with an analysis of the influence of initial imperfections on the load carrying capacity of slender steel columns under axial compression. The variance of the load carrying capacity of a structure is influenced by the variance ofinput imperfections. The theoretical analysis is based on a geometrical and material non-linear finite element method; the steel structure is modelled using SHELL elements, the ANSYS program being applied. Sensitivity analysis is used to determine the sensitivity of strut load carrying capacity with respect to the variance of initial imperfections. The methodology based on Sobol' variance is used for the sensitivity analysis. Input imperfections are of random origin. Majority of the input imperfectionswere measured and their random realizations were computed using their histograms whilst employing the Monte Carlo method. The Monte Carlo method was applied in the evaluation of sensitivity indices. The computation model using shell finit
Czech name
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Czech description
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Project
<a href="/en/project/GA103%2F08%2F0275" target="_blank" >GA103/08/0275: Sensitivity analysis of factors influencing the limit state of thin-walled structures</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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