Diffusion-model-based risk assessment of moisture originated wood deterioration in historic buildings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00236509" target="_blank" >RIV/68407700:21220/15:00236509 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.buildenv.2015.08.004" target="_blank" >http://dx.doi.org/10.1016/j.buildenv.2015.08.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.buildenv.2015.08.004" target="_blank" >10.1016/j.buildenv.2015.08.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diffusion-model-based risk assessment of moisture originated wood deterioration in historic buildings

Popis výsledku v původním jazyce

The paper deals with investigating the response of wood artefacts to relatively fast changes of ambient air humidity and temperature and with estimating the wood stress and strain variations due to the moisture content changes. The moisture content dynamics are described by a specially developed model based on the Fick's second law and further transformed into a state space model. The surface boundary conditions are tied up with a model of quilibrium moisture content. As the final objective of the diffusion model application the moisture induced stress and strain in the wood artefact is assessed. The obtained stress amplitudes are compared with the yield point stress as the boundary of elastic deformations. The model application has particularly confirmed that the concerned transfer phenomena have to do with only a thin surface layer of wood while the deeper layers are not touched by them. For a given set of data provided from unheated historical churches the stress and strain responses are evaluated and compared with their admissible limits in order to estimate the risk of potential moisture originated damage.

Název v anglickém jazyce

Diffusion-model-based risk assessment of moisture originated wood deterioration in historic buildings

Popis výsledku anglicky

The paper deals with investigating the response of wood artefacts to relatively fast changes of ambient air humidity and temperature and with estimating the wood stress and strain variations due to the moisture content changes. The moisture content dynamics are described by a specially developed model based on the Fick's second law and further transformed into a state space model. The surface boundary conditions are tied up with a model of quilibrium moisture content. As the final objective of the diffusion model application the moisture induced stress and strain in the wood artefact is assessed. The obtained stress amplitudes are compared with the yield point stress as the boundary of elastic deformations. The model application has particularly confirmed that the concerned transfer phenomena have to do with only a thin surface layer of wood while the deeper layers are not touched by them. For a given set of data provided from unheated historical churches the stress and strain responses are evaluated and compared with their admissible limits in order to estimate the risk of potential moisture originated damage.

Druh

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

CEP obor

BC - Teorie a systémy řízení

OECD FORD obor

—

Projekt

<a href="/cs/project/7E10028" target="_blank" >7E10028: Damage risk assessment, economic impact and mitigation strategies for sustainable preservation of cultural heritage in the times of climate change.</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Building and Environment

ISSN

0360-1323

e-ISSN

—

Svazek periodika

94

Číslo periodika v rámci svazku

—

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

218-230

Kód UT WoS článku

000367759300019

EID výsledku v databázi Scopus

2-s2.0-84940367510