| dc.creator | O’Ceallaigh, Conan | |
| dc.creator | Sikora, Karol | |
| dc.creator | McPolin, Daniel | |
| dc.creator | M. Harte, Annette | |
| dc.date | 2019-01-01 | |
| dc.date.accessioned | 2023-03-13T20:58:50Z | |
| dc.date.available | 2023-03-13T20:58:50Z | |
| dc.identifier | https://revistas.ubiobio.cl/index.php/MCT/article/view/3294 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/224148 | |
| dc.description | 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 moisture-displacement 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. | en-US |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Universidad del Bio-Bio | en-US |
| dc.relation | https://revistas.ubiobio.cl/index.php/MCT/article/view/3294/3406 | |
| dc.source | Maderas-Cienc Tecnol; Vol. 21 No. 1 (2019); 45-64 | en-US |
| dc.source | Maderas-Cienc Tecnol; Vol. 21 Núm. 1 (2019); 45-64 | es-ES |
| dc.source | 0718-221X | |
| dc.source | 0717-3644 | |
| dc.subject | Adsorption | en-US |
| dc.subject | desorption | en-US |
| dc.subject | finite element analysis | en-US |
| dc.subject | glued laminated timber | en-US |
| dc.subject | long-term moisture | en-US |
| dc.subject | long-term moisture transport | en-US |
| dc.subject | moisture diffusion | en-US |
| dc.title | An experimental and numerical study of moisture transport and moisture-induced strain in fast-grown sitka spruce | en-US |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
