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The results presented were developed within the IP-SME project HOLIWOOD (Holistic implementation of European thermal treated hard wood in the sector of construction industry and noise protection by sustainable, knowledge-based and value added products). This project is being carried out with financial support from the European Community within the Sixth Framework Program (NMP2-CT-2005-IP 011799-2). We would like to thank the support of the German companies Holzfaserplattenwerk H. Henselmann and Dold Holzwerke for supplying and mounting the WFS. We would also like to thank for the support from GOM (Optical Measurement Techniques), and its filial Spanish company, METRONIC, and particularly to Stefan Hoheisel, for facilitating the use of the ARAMIS system. This publication reflects the authors view. The European Community and the mentioned companies are not liable for any use that may be made of the information contained therein.

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Development of a novel facade sandwich panel with low-density wood fibres core and wood-based panels as faces

Publicat a:European Journal Of Wood And Wood Products. 69 (3): 459-470 - 2011-08-01 69(3), DOI: 10.1007/s00107-010-0468-0

Autors: Fernandez-Cabo, Jose L; Majano-Majano, Almudena; San-Salvador Ageo, Luis; Avila-Nieto, Miguel

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The paper explores, experimentally and theoretically, the possibility of producing a novel cladding sandwich panel comprised of a low-density wood fiber (WF) core and faces made of wood-based panels. Tests on small specimens, using physical and optical devices, were performed for the basic mechanical characterization of WF. Shear modulus (G) was the main target; and values for a range of nominal densities (rho) from 110 to 190 kg/m(3) were obtained. Short term load tests on real scale WF sandwich (WFS) specimens of 3.2 m span were also performed. An initial simple analytical structural linear model, taking into account the shear deformation of the core, was used to evaluate the data obtaining a reasonable agreement. The results show that WFSs are a viable solution at least for claddings; special care must be taken, however, in the selection of the face panels due to the influence of hygro-thermal changes. The line of work is especially attractive as WF is a natural and sustainable product.

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