Moisture Changes Induced In Red Oak By Transverse Stress


  • William T. Simpson


The effect of tensile and compressive stresses on northern red oak, in the radial and tangential directions, was investigated at a number of initial moisture contents. Tensile stresses were found to increase moisture content, while compressive stresses decreased moisture content. The size of the stress-induced change in moisture content approaches 1% at high stress levels and high initial moisture contents and increases in an approximately exponential way with initial moisture content. A thermodynamic relationship used to calculate the change in moisture content under stress produced values in reasonably close agreement with observed changes.


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