Bayesian inference as a tool for improving estimates of effective elastic parameters of wood

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00331211" target="_blank" >RIV/68407700:21110/19:00331211 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.compstruc.2019.03.006" target="_blank" >https://doi.org/10.1016/j.compstruc.2019.03.006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compstruc.2019.03.006" target="_blank" >10.1016/j.compstruc.2019.03.006</a>

Result language
angličtina
Original language name
Bayesian inference as a tool for improving estimates of effective elastic parameters of wood
Original language description
A simple approach to the identification of geometrical and material uncertainties of wood is presented.This stochastic mechanics problem combines classical micromechanics, computational homogenization and experimental measurements with Bayesian inference to estimate the model parameters including the characteristics of errors in macroscopic elastic properties of wood caused by randomness of microstructural details on the one hand and the experimental errors on the other hand. The former source of uncertainty includes, for example, variability in microfibril angle and growth ring density.Even such limiting consideration of random input illustrates the need for combined computational and experimental approach in a reliable prediction of the desired material properties. Tying the two approaches in the framework of Bayesian statistical method proves useful when addressing their limitations and as such giving better notion on the credibility of the prediction. This is demonstrated here on one particular example of spruce wood.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering

Project
<a href="/en/project/GA18-05791S" target="_blank" >GA18-05791S: Fire resistance of glued laminated timber beams including uncertainties</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

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