Quantile-oriented global sensitivity analysis of design resistance.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU135550" target="_blank" >RIV/00216305:26110/19:PU135550 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3846/jcem.2019.9627" target="_blank" >https://doi.org/10.3846/jcem.2019.9627</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3846/jcem.2019.9627" target="_blank" >10.3846/jcem.2019.9627</a>

Result language
angličtina
Original language name
Quantile-oriented global sensitivity analysis of design resistance.
Original language description
The article investigates the application of a new type of global quantile-oriented sensitivity analysis (called QSA in the article) and contrasts it with established Sobol sensitivity analysis (SSA). Comparison of QSA of the resistance design value (0.1 percentile) with SSA is performed on an example of the analysis of the resistance of a steel IPN 200 beam, which is subjected to lateral-torsional buckling. The resistance is approximated using higher order polynomial metamodels created from advanced non-linear FE models. The main, higher order and total effects are calculated using the Latin Hypercube Sampling method. Noticeable differences between the two methods are found, with QSA apparently revealing higher sensitivity of the resistance design value to random input second and higher order interactions (compared to SSA). SSA cannot identify certain reliability aspects of structural design as comprehensively as QSA, particularly in relation to higher order interactions effects of input imperfections. In order to better understand the reasons for the differences between QSA and SSA, two simple examples are presented, where QSA (median) and SSA show a general agreement in the calculation of certain sensitivity indices.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20101 - Civil engineering

Project
<a href="/en/project/GA18-13212S" target="_blank" >GA18-13212S: Response surface and sensitivity analysis methods in stochastic computational mechanics (RESUS)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)