Original title: Creep of oak dowel: various loading and environmental conditions
Authors: Hasníková, Hana ; Kunecký, Jiří ; Hataj, M.
Document type: Papers
Conference/Event: SHATIS 22. International conference on structural health assessment of timber structures /6./, Praha (CZ), 20220907
Year: 2022
Language: eng
Abstract: For research of timber joints, the crucial role in force distribution inside the joint is played by distribution and variability of stiffness of the dowels. Not only the instant stiffness, but the one that we can encounter after some longer period. Also, this value and its statistical distribution is influenced by many other factors, however, humidity and temperature are in timber (oak) dowels of utmost importance. In the work results of a creep experiment made using a special testing rig is presented. It has been found, that biggest changes in creep behavior are in case if very humid conditions are present, and, also, that cycling the temperature in high humidity conditions can produce about 104% of the original instantaneous displacement. The result is not surprising, however, new insights are made thanks to relatively high number of samples and ability to produce some statistics. Another outcome is relation of dowel stiffness in time to the level of applied stress, which is quantified in the article.
Keywords: creep; humidity; oak dowel
Project no.: TJ01000412
Funding provider: GA TA ČR
Host item entry: Proceedings of the SHATIS 2022 – 6th International conference on structural health assessment of timber structures, ISBN 978-80-86246-54-3

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0333803

Permalink: http://www.nusl.cz/ntk/nusl-508694


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
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