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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Effects of material constants and geometry on hygrobuckling of wood-based panels

Journal of Wood Science volume 47, pages 214–220 (2001)Cite this article

An Erratum to this article was published on 01 October 2001

Abstract

To understand and predict hygrobuckling behavior of orthotropic or isotropic wood-based composite panels, the closed form equations were derived using both the displacement function with a double sine series and the energy method under biaxial compressions with an all-clamped-edge condition. The critical moisture content depended on Poisson's ratio (ν) and was inversely proportional to 1+ν for isotropic panels. It did not depend on the modulus of elasticity (MOE) at all for isotropic panels, but it did depend on MOE ratios for orthotropic panels. As expected, the critical moisture content of plywood was twice as large as the that of hardboard owing to the difference in linear expansions between the two panels. The application of optimum thickness and aspect ratios obtained by the derived equations could improve hygrobuckling resistance without other chemical treatments that could reduce the linear expansion of wood-based panels. This study also indicated that it would be better to increase the aspect ratio rather than the thickness ratio (a/h) from the view-point economics.

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Authors and Affiliations

  1. Institute of Forestry and Forest Products, College of Agriculture and Life Sciences, Seoul National University, 103 Seodun-Dong, Kwonsun-Gu, 441-744, Suwon, Korea

    Wook Kang

  2. Department of Forest Products, College of Agriculture and Life Sciences, Seoul National University, 103 Seodun-Dong, Kwonsun-Gu, 441-744, Suwon, Korea

    Hee -Suk Jung

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  1. Wook Kang
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  2. Hee -Suk Jung
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Correspondence to Wook Kang.

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Kang, W., Jung, H.S. Effects of material constants and geometry on hygrobuckling of wood-based panels. J Wood Sci 47, 214–220 (2001). https://doi.org/10.1007/BF01171224

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  • DOI: https://doi.org/10.1007/BF01171224

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