The effect of stem and root-plate defects on the tree response during static loading-Numerical analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F21%3A00559318" target="_blank" >RIV/86652079:_____/21:00559318 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/21:43919281

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1618866721000273?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1618866721000273?via%3Dihub</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>

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Urban Forestry & Urban Greening

ISSN

1618-8667

e-ISSN

1610-8167

Svazek periodika

59

Číslo periodika v rámci svazku

APR

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