- Note
- Published:
Veneer strand flanged I-beam with MDF or particleboard as web material IV: Effect of web material types and flange density on the basic properties
Journal of Wood Science volume 52, pages 167–172 (2006)
Abstract
The balance of strength between the flange and web parts of veneer strand flanged I-beam was investigated by the following methods: (1) use of different web material types, such as plywood, oriented strand board (OSB), particleboard (PB), and medium density fiberboard (MDF), that have different strength properties; and (2) fabrication of I-beams with low-density flanges using low-density strands with PB web material. Replacing PB or MDF with plywood showed slight significant improvement in the modulus of rupture but not in the modulus of elasticity of the entire I-beam. However, PB and MDF showed competent performance in comparison with OSB, thus strengthening the promising future of the use of PB or MDF as web material to fabricate I-beams. Hot-pressing conditions used for I-beam production exerted slightly adverse effects on the bending properties of PB, but not on MDF, OSB, and plywood web materials. The flange density of 0.60 g/cm3 was considered to be the lower limit that provides I-beams with balanced mechanical properties and dimensional stability.
References
Abdalla AMA, Sekino N, Jinbo N (2004) Veneer strand flanged I-beam with MDF or particleboard as web material I: the forming method and fundamental properties. J Wood Sci 50:223–229
Abdalla AMA, Sekino N (2004) Veneer strand flanged I-beam with MDF or particleboard as web material II: effect of resin type, application rate, strand dimension and pressing time on the basic properties. J Wood Sci 50:400–406
Abdalla AMA, Sekino N (2004) Veneer strand flanged I-beam with MDF or particleboard as web material III: effect of strand density and preparation method on the basic properties. J Wood Sci (in press)
Benedito RV, William FL, Sidney RB (1974) How species and board densities affect properties of exotic hardwood particleboard. Forest Prod J 24:37–45
Xu W, Suchsland O (1998) Modulus of elasticity of wood composite panels with a uniform vertical density profile: a model. Wood Fiber Sci 30:293–300
Japanese Agricultural Standard (1996) Classification of plywood according to the adhesive type. Japanese Agricultural Standard Association
Carll CG (1994) Basic mechanical properties of flake boards from ring-cut flakes of eastern hardwoods. Forest Prod J 44:26–32
Geimer RL, Victoria LH, Xu D (1997) Influence of juvenile wood on dimensional stability and tensile strength properties of flakeboard. Wood Fiber Sci 29:103–120
Suchsland O (1971) Linear expansion of veneered furniture panels. Forest Prod J 21:90–96
Suchsland O (1972) Linear hygroscopic expansion of selected commercial particleboards. Forest Prod J 22:28–32
Suchsland O, Feng Y, Xu D (1995) The hygroscopic warping of laminated panels. Forest Prod J 45:57–63
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Abdalla, A.M.A., Sekino, N. Veneer strand flanged I-beam with MDF or particleboard as web material IV: Effect of web material types and flange density on the basic properties. J Wood Sci 52, 167–172 (2006). https://doi.org/10.1007/s10086-005-0745-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10086-005-0745-4