Mathematical models and experimental data for HDF based sandwich panels with dual corrugated lightweight core
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Jerzy Smardzewski
und
Dorota Jasińska
Abstract
Light layer honeycomb panels could replace traditional wood materials, if their stiffness and strength properties could be improved. The aim of this research was to design and determine elastic properties of sandwich panels (SPs) based on a dual corrugated HDF core. Stiffness matrix values of elements were determined by a numerical method. The 3D calculation results were compared with those of the homogeneous model. The calculation results were collated with those of experimental investigations. It was demonstrated that the linear elasticity modulus as well as the modulus of rupture of the SPs were comparable with mechanical properties of a particle board with identical thickness, while the SP has a 1/3 lower density. The panel core exhibited significant orthotropic properties. In the xy plane it could be characterized as an auxetic structure. The homogeneous model leads to results similar to those achieved from the 3D model and observed in experimental tests.
Acknowledgment
This work was supported by the Polish National Centre for Research and Development under the grant “Passive acoustic materials for furniture production” and by Pl-grid Infrastructure.
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©2017 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
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- Mathematical models and experimental data for HDF based sandwich panels with dual corrugated lightweight core
Artikel in diesem Heft
- Frontmatter
- Comparative analysis of the complete chloroplast genomic sequence and chemical components of Cinnamomum micranthum and Cinnamomum kanehirae
- Characterisation of lignin and lignin-carbohydrate complexes (LCCs) in prehydrolysed wood chips
- Promotion effect of NP fire retardant pre-treatment on heat-treated poplar wood. Part 1: color generation, dimensional stability, and fire retardancy
- Promotion effect of NP fire retardant pre-treatment on heat-treated poplar wood. Part 2: hygroscopicity, leaching resistance, and thermal stability
- Coating of wood by means of electrospun nanofibers based on PVA/SiO2 and its hydrophobization with octadecyltrichlorosilane (OTS)
- Characteristics and thermal decomposition kinetics of wood-SiO2 composites derived by the sol-gel process
- Premature failure of utility poles in Switzerland and Germany related to wood decay basidiomycetes
- Tannin-boron complex as a preservative for 3-ply beech plywoods designed for humid conditions
- Biodegradation of terpenes for emission-reduced oriented strand boards (OSB)
- Mathematical models and experimental data for HDF based sandwich panels with dual corrugated lightweight core
