Wood Science and Technology

, Volume 6, Issue 1, pp 43–57

Wood as a linear orthotropic viscoelastic material

  • A. P. Schniewind
  • J. D. Barrett

DOI: 10.1007/BF00351807

Cite this article as:
Schniewind, A.P. & Barrett, J.D. Wood Science and Technology (1972) 6: 43. doi:10.1007/BF00351807


Measurements were made of the principal components of the creep compliance tensor in the radial-longitudinal and the tangential-longitudinal planes of Douglas-fir at 10 percent moisture content. Extensional creep compliance measurements at angles to the grain were also made. The results show that creep parallel to grain occurs at an increase in volume, and that creep at angles to the grain can be predicted from standard transformation equations. It is concluded that wood can be regarded as a linear orthotropic viscoelastic material.

Copyright information

© Springer-Verlag 1972

Authors and Affiliations

  • A. P. Schniewind
    • 2
  • J. D. Barrett
    • 2
  1. 1.Western Forest Products LaboratoryVancouverCanada
  2. 2.Forest Products LaboratoryUniversity of CaliforniaRichmond