Combining Homogenization, Indentation and Bayesian Inference in Estimating the Microfibril Angle of Spruce
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00317178" target="_blank" >RIV/68407700:21110/17:00317178 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S1877705817324839" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1877705817324839</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.proeng.2017.05.343" target="_blank" >10.1016/j.proeng.2017.05.343</a>
Alternative languages
Result language
angličtina
Original language name
Combining Homogenization, Indentation and Bayesian Inference in Estimating the Microfibril Angle of Spruce
Original language description
It has been shown that the microfibril angle may severely reduce the longitudinal elastic stiffness of wood. The present paper addresses this issue by combining experimental measurements on various scales, homogenization and Bayesian statistical method. To that end, the variation of effective stiffness as a function of microfibril angle is first estimated by combining nanoindentation and homogenization. The results from a series of tensile tests carried out on thin samples of wood containing only a few growth rings are expected to give additional source of information. In the present study both types of data, microscopic as well as macroscopic measurements, are exploited in the framework of Bayesian inference to get improved, posterior, knowledge of the microfibril angle distribution. Owing to a computational demand associated with the Markov chain Monte Carlo method, as the engine of the updating process, the homogenization based on classical micromechanics is adopted.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA15-10354S" target="_blank" >GA15-10354S: Advanced tools for the analysis of timber structures considering variability of model parameters</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
Article name in the collection
Procedia Engineering
ISBN
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ISSN
1877-7058
e-ISSN
1877-7058
Number of pages
8
Pages from-to
310-317
Publisher name
Elsevier Ltd
Place of publication
Oxford
Event location
Štrbské Pleso
Event date
Nov 9, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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