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Increased use of hardwood through light-weight constructions
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. (Virkeslära)
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. (Virkeslära)
2013 (English)In: Proceeding of ISCHP2013 - International Scientific Conference on Hardwood Processing, October 7-9, Florence, Italy. / [ed] Berti, S. et al., Florence: CNR IVALSA , 2013, 291-296 p.Conference paper, Published paper (Refereed)
Abstract [en]

The use of high density hardwood species for furniture and interior purposes can be limited because the weight. Keeping the weight low is important both from a user perspective and for logistic reasons in the manufacturing and distribution process. This work describes the construction and mechanical characteristics of a new type of light-weight panel in wood. The panel is a sandwich construction in three layers with hardwood as the surface layers. The surface layers are made of 6 mm thick solid beech and the core consists of solid pine wood in thicknesses of 24 or 96 mm cross-laminated to the surfaces. The total panel density was then 373 and 294 kg/m3 given a beech surface layer with a density of 725 kg/m3. The presented light-weight panel resulted in a 50-60 % decrease in the use of wood compared to a traditional edge-glued panel. Tests of the mechanical properties showed a bending stiffness in the longitudinal direction (of the core) of 2.9 kNm2 for a 36 mm thick panel and 221 kNm2 for a 108 mm thick panel. In the transverse direction, the corresponding values were 11 kNm2 and 88 kNm2. The overall results indicate that the light-weight panel presented shows promising technical and environmental properties and can thereby contribute to an increased use of hardwood species.

Place, publisher, year, edition, pages
Florence: CNR IVALSA , 2013. 291-296 p.
Keyword [en]
light-weight panels, wood, web, flanges
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-29483ISBN: 9788890166099 (print)OAI: oai:DiVA.org:lnu-29483DiVA: diva2:654066
Conference
4th International Scientific Conference on Hardwood Processing 2013 (ISCHP 13), Florence, Italy, October 7-9
Available from: 2013-10-07 Created: 2013-10-07 Last updated: 2013-10-14Bibliographically approved

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Nilsson, JonazJohansson, JimmySandberg, Dick

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