dc.contributor.author | O'Ceallaigh, Conan | |
dc.contributor.author | Sikora, Karol | |
dc.contributor.author | McPolin, Daniel | |
dc.contributor.author | Harte, Annette M. | |
dc.date.accessioned | 2019-01-22T09:17:57Z | |
dc.date.available | 2019-01-22T09:17:57Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | O'Ceallaigh, Conan, Sikora, Karol, McPolin, Daniel, & Harte, Annette M. (2019). An experimental and numerical study of moisture flow and moisture-induced strain in fast-grown Sitka spruce. Maderas: Ciencia y tecnologia, 21(1), 45-64. doi: 10.4067/S0718-221X2019005000105 | en_IE |
dc.identifier.issn | 0717-3644 | |
dc.identifier.issn | 0718-221X | |
dc.identifier.uri | http://hdl.handle.net/10379/14826 | |
dc.description.abstract | The use of fast-grown timber in the manufacture of engineered wood products is increasing;
however, the fast growth rate results in a low-density timber that is susceptible to significant swelling
and shrinkage deformations under changing moisture content. The current study focuses on the
characterisation of the moisture diffusion and swelling/shrinkage of fast-grown Sitka spruce and the
prediction of the moisture-induced strain development in Sitka spruce glulam beams under variable
humidity cycles. Moisture content evolution and swelling/shrinkage coefficients were measured and the
longitudinal swelling/shrinkage was found to be significantly greater than for slow-grown timber. Sitka
spruce glued-laminated beams were subjected to controlled relative humidity cycling for 52 weeks and
the moisture distribution and moisture-induced strains were measured continuously. Coupled moisturedisplacement numerical models, incorporating the experimentally measured material parameters were
developed. The effect of the glue-line was found to have an insignificant effect on moisture transport,
however, the material orientation greatly influenced the predicted moisture-induced strain. Accurately
mapping the material orientation produced significantly better predictions of the experimental results
over the 52-week period.
Keywords: Adsorption, | en_IE |
dc.description.sponsorship | This work has been carried out as part of the project entitled ‘Innovation in Irish timber Usage’
(project ref. 11/C/207) funded by the Department of Agriculture, Food and the Marine of the Republic
of Ireland under the FIRM/RSF/COFORD scheme. The authors would also like to thank ECC Ltd.
(Earrai Coillte Chonnacht Teoranta) for supplying all the timber used in this project. The contribution
of the technical staff of the College of Engineering and Informatics, NUIG, in particular, Peter Fahy,
Colm Walsh and Gerrard Hynes, is acknowledged | en_IE |
dc.format | application/pdf | en_IE |
dc.language.iso | en | en_IE |
dc.publisher | Departamento de Ingeniería en Maderas de la Universidad del Bio-Bio en Concepción, Chile | en_IE |
dc.relation.ispartof | Maderas: ciencia y tecnologia | en |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | Adsorption | en_IE |
dc.subject | Desorption | en_IE |
dc.subject | Finite element analysis | en_IE |
dc.subject | Glued laminated timber | en_IE |
dc.subject | Long-term moisture transport | en_IE |
dc.subject | Moisture diffusion | en_IE |
dc.title | An experimental and numerical study of moisture flow and moisture-induced strain in fast-grown Sitka spruce | en_IE |
dc.type | Article | en_IE |
dc.date.updated | 2019-01-16T21:09:00Z | |
dc.identifier.doi | 10.4067/S0718-221X2019005000105 | |
dc.local.publishedsource | http://www.revistamaderas.cl/ojs/index.php/remaderas/article/view/1802 | en_IE |
dc.description.peer-reviewed | peer-reviewed | |
dc.contributor.funder | Department of Agriculture, Food and the Marine | en_IE |
dc.internal.rssid | 15542509 | |
dc.local.contact | Annette M. Harte, Dept. Of Civil Engineering, Civil Engineering Building, Nui Galway. 2732 Email: annette.harte@nuigalway.ie | |
dc.local.copyrightchecked | Yes | |
dc.local.version | PUBLISHED | |
nui.item.downloads | 131 | |