Elasto-plastic material model of oak at two moisture content levels
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F22%3A43921853" target="_blank" >RIV/62156489:43410/22:43921853 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1515/hf-2022-0008" target="_blank" >https://doi.org/10.1515/hf-2022-0008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/hf-2022-0008" target="_blank" >10.1515/hf-2022-0008</a>
Alternative languages
Result language
angličtina
Original language name
Elasto-plastic material model of oak at two moisture content levels
Original language description
The mechanical properties of wood show a very high dependence on the moisture content (MC). A consideration of MC in numerical simulations increases the applicability of such prediction with respect to application and moisture states of the wood material. The goal of this work is to develop an accurate orthotropic elasto-plastic model for oak wood (Quercus robur L.) at two different MC levels applicable for finite element analysis (FEA). To achieve this goal, the following steps were carried out: (a) in-house standard specimens tests in compression, tension, and shear and in all three orthogonal directions, followed by three-point bending, where all specimens were conditioned to a 12 and 25.6% MC, prior to the mechanical test; (b) integration of all obtained material characteristics into the consistent numerical material models; (c) validation of the developed material models by comparing the numerically predicted values with the experimental ones; and (d) iterative calibration of the material models by adjusting the individual material characteristics to minimize error using a reference. Material models were successfully developed with the following mean relative errors: 5.2% for 12% MC and 5.8% for 25.6% MC, respectively. Both numerical material models consistently predicted the oak elasto-plastic response that can be easily integrated into any FEA.
Czech name
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Czech description
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Classification
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
20502 - Paper and wood
Result continuities
Project
<a href="/en/project/LL1909" target="_blank" >LL1909: Tree Dynamics: Understanding of Mechanical Response to Loading</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Holzforschung
ISSN
0018-3830
e-ISSN
1437-434X
Volume of the periodical
76
Issue of the periodical within the volume
10
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
886-896
UT code for WoS article
000835432500001
EID of the result in the Scopus database
2-s2.0-85135706593