CHARRING RATE OF WOOD AND DEVELOPMENT OF CRACKS IN THE CHARRED LAYER

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00383374" target="_blank" >RIV/68407700:21110/25:00383374 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.21495/em2025173" target="_blank" >https://doi.org/10.21495/em2025173</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21495/em2025173" target="_blank" >10.21495/em2025173</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CHARRING RATE OF WOOD AND DEVELOPMENT OF CRACKS IN THE CHARRED LAYER

Popis výsledku v původním jazyce

The paper presents a part of research focused on the influence of cracks on the fire resistance of wooden structures and their potential integration into numerical models. The increasing interest in using wood as asustainable construction material emphasizes the necessity of a detailed investigation of its behavior during fire exposure. Existing analyzed methods often rely on conservative charring rates under standard fire conditions, which are not remotely similar to natural fire conditions and at the same time do not describe the reality of the development of the charred layer and formation of cracks in the layer. A numerical model was developed to incorporate an equation for a more realistic charring rate based on a probabilistic approach and crack distances. This allowed the inclusion of the effect of anisotropic wood properties, moisture, density, and oxygen content, which led to a better description of the wooden structure’s behavior during fire exposure. Results of the model show good consistency of the prediction with the data measured during the experiment.

Název v anglickém jazyce

CHARRING RATE OF WOOD AND DEVELOPMENT OF CRACKS IN THE CHARRED LAYER

Popis výsledku anglicky

The paper presents a part of research focused on the influence of cracks on the fire resistance of wooden structures and their potential integration into numerical models. The increasing interest in using wood as asustainable construction material emphasizes the necessity of a detailed investigation of its behavior during fire exposure. Existing analyzed methods often rely on conservative charring rates under standard fire conditions, which are not remotely similar to natural fire conditions and at the same time do not describe the reality of the development of the charred layer and formation of cracks in the layer. A numerical model was developed to incorporate an equation for a more realistic charring rate based on a probabilistic approach and crack distances. This allowed the inclusion of the effect of anisotropic wood properties, moisture, density, and oxygen content, which led to a better description of the wooden structure’s behavior during fire exposure. Results of the model show good consistency of the prediction with the data measured during the experiment.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Engineering Mechanics 2025: Book of full texts

ISBN

978-80-86246-99-4

ISSN

1805-8248

e-ISSN

1805-8256

Počet stran výsledku

4

Strana od-do

173-176

Název nakladatele

Institute of Thermomechanics, AS CR, v.v.i.

Místo vydání

Prague

Místo konání akce

Medlov

Datum konání akce

12. 5. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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