Acoustic tomography outputs in comparison to the properties of degraded wood in beech trees

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F22%3A43921869" target="_blank" >RIV/62156489:43410/22:43921869 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s00107-022-01872-w" target="_blank" >https://doi.org/10.1007/s00107-022-01872-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00107-022-01872-w" target="_blank" >10.1007/s00107-022-01872-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Acoustic tomography outputs in comparison to the properties of degraded wood in beech trees

Popis výsledku v původním jazyce

The interpretation of the outputs of acoustic tomography is often altered by different physical and mechanical parameters. Detailed information on the relationships between static mechanical properties and dynamic parameters of intact and degraded green wood can improve the results of this device-supported method used for tree stability assessment. This research presents a graphic and statistic comparison of acoustic tomography outputs with the laboratory assessed material parameters. The analysis was based on the relationship between the dynamic and static mechanical parameters of four cross-sections from two living tree stems. The occurrence of seven white and soft rot fungi was taken into consideration. The influence of density (ρ) on stress-wave propagation (v) was proved. A strong correlation between the dynamic moduli of elasticity (Edyn) and compressive strength (σ) is reported. A higher heterogeneity of wood degradation among the cross-section can lead to an underestimation of the defect during AT assessment. The dynamic modulus of elasticity Edyn was less influenced than v by the heterogeneity of degraded wood. Therefore, Edyn can be used to form a better interpretation of acoustic tomography assessment of standing beech trees. Due to the complexity of the topic, further investigation of previously mentioned relationships is still needed.

Název v anglickém jazyce

Acoustic tomography outputs in comparison to the properties of degraded wood in beech trees

Popis výsledku anglicky

The interpretation of the outputs of acoustic tomography is often altered by different physical and mechanical parameters. Detailed information on the relationships between static mechanical properties and dynamic parameters of intact and degraded green wood can improve the results of this device-supported method used for tree stability assessment. This research presents a graphic and statistic comparison of acoustic tomography outputs with the laboratory assessed material parameters. The analysis was based on the relationship between the dynamic and static mechanical parameters of four cross-sections from two living tree stems. The occurrence of seven white and soft rot fungi was taken into consideration. The influence of density (ρ) on stress-wave propagation (v) was proved. A strong correlation between the dynamic moduli of elasticity (Edyn) and compressive strength (σ) is reported. A higher heterogeneity of wood degradation among the cross-section can lead to an underestimation of the defect during AT assessment. The dynamic modulus of elasticity Edyn was less influenced than v by the heterogeneity of degraded wood. Therefore, Edyn can be used to form a better interpretation of acoustic tomography assessment of standing beech trees. Due to the complexity of the topic, further investigation of previously mentioned relationships is still needed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20502 - Paper and wood

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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

European Journal of Wood and Wood Products

ISSN

0018-3768

e-ISSN

1436-736X

Svazek periodika

80

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1377-1387

Kód UT WoS článku

000841690300001

EID výsledku v databázi Scopus

2-s2.0-85136268017