Thermal Strain of Green Hinoki Wood: Separating the Hygrothermal Recovery and the Reversible Deformation

  • Sandrine Bardet
  • Joseph Gril
  • Keisuke Kojiro
Part of the Lecture Notes in Applied and Computational Mechanics book series (LNACM, volume 61)


Heating of green wood involves a complex set of deformation processes, including reversible thermal strain, reversible shrinkage due to decrease of moisture content, and irreversible viscoelatic recovery of growth stress activated by temperature called hygrothermal recovery (HTR). Experimental tests were performed on small Japanese Cypress specimens oriented in the three principal R, T, L directions, using a Thermo Mechanical Analyser. The analysis allowed the separation of the hygrothermal recovery from the reversible components of the deformation.


Outer Zone Growth Stress Reversible Deformation Irreversible Strain Japanese Cypress 
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© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Sandrine Bardet
    • 1
  • Joseph Gril
    • 1
  • Keisuke Kojiro
    • 2
  1. 1.Laboratoire de Mécanique et Génie Civil, CC 048Université Montpellier 2Montpellier Cedex 5France
  2. 2.Laboratory of Wood TechnologyKyoto Prefectural UniversityKyotoJapan

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