The effect of stem and root-plate defects on the tree response during static loading-Numerical analysis
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43919281" target="_blank" >RIV/62156489:43410/21:43919281 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/86652079:_____/21:00559318
Výsledek na webu
<a href="https://doi.org/10.1016/j.ufug.2021.127002" target="_blank" >https://doi.org/10.1016/j.ufug.2021.127002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ufug.2021.127002" target="_blank" >10.1016/j.ufug.2021.127002</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The effect of stem and root-plate defects on the tree response during static loading-Numerical analysis
Popis výsledku v původním jazyce
Despite continual development of the tree pulling test, there is no systematic study on the interaction of stem and root-plate stiffness in relation to tree assessment results. New methods involving numerical modelling and optical techniques provide tools for effective and deeper understanding of the interaction of stem and root-plate stiffness. Within this study, a finite element (FE) model of the tree response to static loading was developed, and the interaction between the stem and root-plate stiffness was analysed on three levels: longitudinal stem strains, root-plate inclinations and stem deflection curve. The model was validated at all three levels by comparison with experiment. Sensitivity analysis of the validated model showed a significant correlation of root-plate stiffness represented by the root volume and soil elastic modulus to the tree response. By analysing the defects in tree response, the importance of proper location for detection of strains and inclinations was demonstrated, especially regarding asymmetrical defects. A numerical estimate of the second derivative of displacement based on the Taylor approximation, was used to analyse the stem deflection curve.
Název v anglickém jazyce
The effect of stem and root-plate defects on the tree response during static loading-Numerical analysis
Popis výsledku anglicky
Despite continual development of the tree pulling test, there is no systematic study on the interaction of stem and root-plate stiffness in relation to tree assessment results. New methods involving numerical modelling and optical techniques provide tools for effective and deeper understanding of the interaction of stem and root-plate stiffness. Within this study, a finite element (FE) model of the tree response to static loading was developed, and the interaction between the stem and root-plate stiffness was analysed on three levels: longitudinal stem strains, root-plate inclinations and stem deflection curve. The model was validated at all three levels by comparison with experiment. Sensitivity analysis of the validated model showed a significant correlation of root-plate stiffness represented by the root volume and soil elastic modulus to the tree response. By analysing the defects in tree response, the importance of proper location for detection of strains and inclinations was demonstrated, especially regarding asymmetrical defects. A numerical estimate of the second derivative of displacement based on the Taylor approximation, was used to analyse the stem deflection curve.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
40102 - Forestry
Návaznosti výsledku
Projekt
<a href="/cs/project/LL1909" target="_blank" >LL1909: Dynamika stromu: popis mechanické odezvy na zatížení</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Urban Forestry & Urban Greening
ISSN
1618-8667
e-ISSN
—
Svazek periodika
59
Číslo periodika v rámci svazku
April
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
13
Strana od-do
127002
Kód UT WoS článku
000630317700001
EID výsledku v databázi Scopus
2-s2.0-85100437540