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Spatial structure of wood composites in relation to processing and performance characteristics

Part 3. Modelling the formation of multi-layered random flake mats

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Summary

The structure of a randomly-formed flake-type wood composite mat is further defined and characterized. A model for the prediction of horizontal mass density distribution in a random flake mat is presented through application of two-dimensional random field theory. This model predicts the small-scale mass density variance and the spatial correlation of flake coverage. The predictions agree well with experimental results and computer simulations. Significance and implications of the model development towards practical manufacturing applications are discussed. In addition, equations for the calculation of general structural properties such as overall mat thickness, between-flake void volume content and maximum potential inter-flake bonded areas are presented.

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Author notes

  1. Chunping Dai

    Present address: Wood Science and Technology Centre, University of New Brunswick, R. R. 10, E 3 B 6 H 6, Fredericton, NB, Canada

Authors and Affiliations

  1. Department of Wood Science, University of British Columbia, V6T 1Z4, Vancouver, B.C., Canada

    Chunping Dai & Paul R. Steiner

Authors
  1. Chunping Dai
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  2. Paul R. Steiner
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Additional information

Financial support for this work from NSERC/Canada through a strategic research grant is gratefully acknowledged.

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Dai, C., Steiner, P.R. Spatial structure of wood composites in relation to processing and performance characteristics. Wood Sci.Technol. 28, 229–239 (1994). https://doi.org/10.1007/BF00193331

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  • DOI: https://doi.org/10.1007/BF00193331

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