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Fracture characteristics of PARALLAM® PSL in comparison to solid wood and particleboard

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Summary

Typical fracture characteristic values like load-displacement curve and specific fracture energy of the new wood laminate compound PARALLAM® PSL were determined by using the wedge splitting technique. Comparison with the values of solid wood and particleboard showed the superiority of this wood composite in both “weak” transverse orientations. This result is explained by the favourably oriented wood strands in PARALLAM® PSL with a length up to 2.6 m, which give rise to crack arresting mechanisms. In addition the influence of specimen geometry on the critical load and corresponding loadpoint-displacement at crack initiation was calculated for both isotropic and orthotropic materials using linear elastic FE-models.

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Authors and Affiliations

  1. Institute of Applied and Technical Physics, Technical University of Vienna, Karlsplatz 13, A-1040, Wien, Austria

    R. J. A. Ehart & E. K. Tschegg

  2. Institute of Meteorology and Physics, University of Agriculture of Vienna, Türkenschanzstraße 18, A-1180, Wien, Austria

    S. E. Stanzl-Tschegg

Authors
  1. R. J. A. Ehart
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  2. S. E. Stanzl-Tschegg
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  3. E. K. Tschegg
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Additional information

The authors thank Trus Joist McMillan for supplying the testing material and especially Dir. Donald Sharp for his helpful cooperation. Financial support by the Austrian National Bank (project no. 4917) is gratefully acknowledged.

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Ehart, R.J.A., Stanzl-Tschegg, S.E. & Tschegg, E.K. Fracture characteristics of PARALLAM® PSL in comparison to solid wood and particleboard. Wood Sci.Technol. 32, 43–55 (1998). https://doi.org/10.1007/BF00702559

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  • DOI: https://doi.org/10.1007/BF00702559

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