Degradation of beech wood by Kretzschmaria deusta: its heterogeneity and influence on dynamic and static bending properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F22%3A43921615" target="_blank" >RIV/62156489:43410/22:43921615 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1515/hf-2022-0039" target="_blank" >https://doi.org/10.1515/hf-2022-0039</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/hf-2022-0039" target="_blank" >10.1515/hf-2022-0039</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Degradation of beech wood by Kretzschmaria deusta: its heterogeneity and influence on dynamic and static bending properties

Popis výsledku v původním jazyce

Strength loss caused by fungal degradation is an important factor to be considered during tree-stability assessment. Detailed information on the relationship between static mechanical properties in relation to the heterogeneity of density and dynamic mechanical parameters of wood degraded by the soft-rot fungus Kretzschmaria deusta can improve the understanding of its decay process and the interpretation of results obtained from stress-wave-based non-destructive methods used for tree-stability assessment. This research presents density profiles of artificially inoculated samples with K. deusta and static mechanical properties of green beech wood in relation to physical parameters (density, moisture content, vibroacoustic parameters). A statistically relevant difference (p &lt; 0.01) in the variability of density distribution between degraded and intact samples was proved. Relevant correlations were proved among modulus of rupture ( MOR ), mass loss and variability longitudinal density distribution. A strong linear relationship between MOR and static modulus of elasticity ( MOE ) of degraded and intact specimens was presented. A strong relationship was also proved between MOR and dynamic parameters (dynamic modulus of elasticity ( MOED ) and stress-wave velocity in longitudinal direction ( cl )). MOED showed a stronger correlation to MOR than cl proving the importance of density in assessing strength loss through non-destructive methods.

Název v anglickém jazyce

Degradation of beech wood by Kretzschmaria deusta: its heterogeneity and influence on dynamic and static bending properties

Popis výsledku anglicky

Strength loss caused by fungal degradation is an important factor to be considered during tree-stability assessment. Detailed information on the relationship between static mechanical properties in relation to the heterogeneity of density and dynamic mechanical parameters of wood degraded by the soft-rot fungus Kretzschmaria deusta can improve the understanding of its decay process and the interpretation of results obtained from stress-wave-based non-destructive methods used for tree-stability assessment. This research presents density profiles of artificially inoculated samples with K. deusta and static mechanical properties of green beech wood in relation to physical parameters (density, moisture content, vibroacoustic parameters). A statistically relevant difference (p &lt; 0.01) in the variability of density distribution between degraded and intact samples was proved. Relevant correlations were proved among modulus of rupture ( MOR ), mass loss and variability longitudinal density distribution. A strong linear relationship between MOR and static modulus of elasticity ( MOE ) of degraded and intact specimens was presented. A strong relationship was also proved between MOR and dynamic parameters (dynamic modulus of elasticity ( MOED ) and stress-wave velocity in longitudinal direction ( cl )). MOED showed a stronger correlation to MOR than cl proving the importance of density in assessing strength loss through non-destructive methods.

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/EF19_073%2F0016670" target="_blank" >EF19_073/0016670: Interní grantová schémata Mendelovy univerzity v Brně</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Holzforschung

ISSN

0018-3830

e-ISSN

1437-434X

Svazek periodika

76

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

813-824

Kód UT WoS článku

000813852100001

EID výsledku v databázi Scopus

2-s2.0-85132888608