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Journal of Materials Science

, Volume 37, Issue 5, pp 935–940 | Cite as

The radial reinforcement of the wood structure and its implication on mechanical and fracture mechanical properties—A comparison between two tree species

  • A. Reiterer
  • I. Burgert
  • G. Sinn
  • S. Tschegg
Article

Abstract

The radial direction of wood is reinforced by an additional tissue called rays. These rays are one of the reasons for the anisotropy of wood in the transverse plane. In this paper the influence of rays on the mechanical properties like tensile strength as well as on fracture mechanical parameters like critical stress intensity factor and specific fracture energy is shown. By investigating two deciduous tree species with a similar wood structure in general but a different ray characteristic in particular the importance of this radial reinforcement of the wood structure could be demonstrated. The relevance for the living tree is discussed.

Keywords

Tensile Strength Tree Species Stress Intensity Intensity Factor Stress Intensity Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    H. HÖRIG, Ing.-Arch. 6 (1935) 8.Google Scholar
  2. 2.
    Idem.,ibid. 8 (1937) 1.Google Scholar
  3. 3.
    L. J. GIBSON and M. F. ASHBY, “Cellular solids. Cambridge Solid State Sci. Ser., ” 2nd ed. (Cambridge University Press, Cambridge, 1997).Google Scholar
  4. 4.
    K. J. NIKLAS, “Plant Biomechanics” (Chicago University Press, Chicago, 1992).Google Scholar
  5. 5.
    E. KAHLE and J. J. WOODHOUSE, J. Mater. Sci. 29 (1994) 1250.Google Scholar
  6. 6.
    I. BURGERT and D. ECKSTEIN, Trees 15 (2001) 168.Google Scholar
  7. 7.
    Y. KAWAMURA, Mokuzai Gakkaishi 30 (1984a) 201.Google Scholar
  8. 8.
    Idem., ibid. 30 (1984b) 785.Google Scholar
  9. 9.
    E. BADEL and P. PERRÉ, Ann. For. Sci. 56 (1999) 467.Google Scholar
  10. 10.
    I. BURGERT, A. BERNASCONI and D. ECKSTEIN, Holz Roh-Werkst. 57 (1999) 397.Google Scholar
  11. 11.
    I. BURGERT, A. BERNASCONI, K. J. NIKLAS and D. ECKSTEIN, Holzforschung 55, in press.Google Scholar
  12. 12.
    W. H. BEERY, G. IFJU and E. MC LAIN, Wood Fiber Sci. 15 (1983) 395.Google Scholar
  13. 13.
    A. P. SCHNIEWIND, Forest Prod. J. 9 (1959) 350.Google Scholar
  14. 14.
    E. K. TSCHEGG, Equipment and Appropriate Specimen Shape for Tests to Measure FractureValues (in German), PatentAT-390328 (1986).Google Scholar
  15. 15.
    H. HARMUTH, Theor. Appl. Fract. Mech. 23 (1995) 103.Google Scholar
  16. 16.
    S. E. STANZL-TSCHEGG, D. M. TAN and E.K. TSCHEGG, Wood Sci. Technol. 29 (1995) 31.Google Scholar
  17. 17.
    Idem.,Int. J. Fract. 75 (1996) 347.Google Scholar
  18. 18.
    A. REITERER, S. E. STANZL-TSCHEGG and E.K. TSCHEGG, Wood Sci. Technol. 34 (2000) 417.Google Scholar
  19. 19.
    H. SCHACHNER, A. REITERER and S. E. STANZLTSCHEGG, J. Mater. Sci. Lett. 19 (2000) 1783.Google Scholar
  20. 20.
    P. NIEMZ, “Physik des Holzes und der Holzwerkstoffe” (DRWVerlag, Leinfelden-Echterdingen, 1993).Google Scholar
  21. 21.
    R. WAGENFÜHR, “Holzatlas” (Carl Hanser Verlag, Leipzig, 2000).Google Scholar
  22. 22.
    H. HARMUTH, K. RIEDER, M. KROBATH and E. K. TSCHEGG, Mat. Sci. Eng. A 214 (1996) 53.Google Scholar
  23. 23.
    R. L. YOUNGS, U.S. For. Prod. Lab., Madison, Wis. Rept 2079 (1957).Google Scholar
  24. 24.
    M. GOULET, Holz Roh-Werkst. 18 (1960) 325.Google Scholar
  25. 25.
    D. FENGEL and G. WEGENER, “Wood—Chemistry, Ultrastructure, Reactions” (Walter de Gruyter, Berlin, New York, 1989).Google Scholar
  26. 26.
    C. MATTHECK and H. KUBLER, “Wood—the Internal Optimization of Trees” (Springer-Verlag, New York, 1995).Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • A. Reiterer
    • 1
  • I. Burgert
    • 1
  • G. Sinn
    • 1
  • S. Tschegg
    • 1
  1. 1.Institute of Meteorology and PhysicsUniversity of Agricultural Sciences ViennaViennaAustria

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