Method For Obtaining Wood/Bark Adhesion Measurements on Small Samples


  • M. (Harder) Fiscus
  • R. H. Van Eperen
  • D. W. Einspahr


Wood/bark adhesion, debarking, shear parallel to grain


Using the Instron Tester, a procedure has been developed for measuring wood/bark adhesion on small samples. Using very small, specially prepared samples, wood/bark adhesion measurements were made on twenty-four hardwoods and eighteen conifers. High dormant season wood/bark adhesion in hardwoods was found to be associated with the presence of fibers in the inner bark. The procedure appears to be useful in identifying difficult-to-debark species and evaluating methods of reducing adhesion.


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