Using optical full-field measurement based on digital image correlation to measure strain on a tree subjected to mechanical load

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F14%3A00217123" target="_blank" >RIV/62156489:43410/14:00217123 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378297:_____/14:00428997

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00468-014-1028-8" target="_blank" >http://dx.doi.org/10.1007/s00468-014-1028-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00468-014-1028-8" target="_blank" >10.1007/s00468-014-1028-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Using optical full-field measurement based on digital image correlation to measure strain on a tree subjected to mechanical load

Popis výsledku v původním jazyce

The goal of this study was to analyze and measure the displacement and strain response behavior of the tree (Juglans regia L.) subjected to a mechanical load. The analysis addresses issues of tree biomechanics that call for a high-quality deformation data measured on trees' surfaces in a noninvasive way. For these purposes, the 3D digital image correlation (3D-DIC) was proposed and tested against standard extensometers. The measured tree was subjected to a bending by a pulling test to induce strain on the tree stem. The DIC technique successfully provided strain field on a tree bark despite its highly complicated geometry. Vertical averaging of the strain field obtained by the DIC revealed that a tree stem behaves according to beam theory exhibiting compression and tension parts. The absolute values of strain measured by both techniques agree with each other in order of magnitude, DIC returning lower values (approximately 21.1 and 40.8 % for compression and tension part, respectively).

Název v anglickém jazyce

Using optical full-field measurement based on digital image correlation to measure strain on a tree subjected to mechanical load

Popis výsledku anglicky

The goal of this study was to analyze and measure the displacement and strain response behavior of the tree (Juglans regia L.) subjected to a mechanical load. The analysis addresses issues of tree biomechanics that call for a high-quality deformation data measured on trees' surfaces in a noninvasive way. For these purposes, the 3D digital image correlation (3D-DIC) was proposed and tested against standard extensometers. The measured tree was subjected to a bending by a pulling test to induce strain on the tree stem. The DIC technique successfully provided strain field on a tree bark despite its highly complicated geometry. Vertical averaging of the strain field obtained by the DIC revealed that a tree stem behaves according to beam theory exhibiting compression and tension parts. The absolute values of strain measured by both techniques agree with each other in order of magnitude, DIC returning lower values (approximately 21.1 and 40.8 % for compression and tension part, respectively).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GK - Lesnictví

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.20.0269" target="_blank" >EE2.3.20.0269: Vytvoření mezinárodního vědecko-výzkumného týmu pro vývoj nových materiálů na bázi dřeva</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Trees - Structure and Function

ISSN

0931-1890

e-ISSN

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Svazek periodika

28

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

1173-1184

Kód UT WoS článku

339878500019

EID výsledku v databázi Scopus

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