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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Diffusion-model-based risk assessment of moisture originated wood deterioration in historic buildings
Original language description
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.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BC - Theory and management systems
OECD FORD branch
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Project
<a href="/en/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>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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