Characteristics of Surface Strand Orientation and Strand Mat Thickness Variation and Its Effect on the Bending Properties of Commercial OSB

  • Oh, Sei Chang (Department of Forest Resources, College of Life and Environmental Science, Daegu University)
  • Received : 2008.03.06
  • Accepted : 2008.03.13
  • Published : 2008.03.25

Abstract

The surface and edge structure of OSB is defined by surface strand orientation and strand mat thickness variation parallel to the length of the panel using video-microscope. The bending strength of OSB was correlated with surface strand orientation and decreased with increasing the orientation angle in the direction parallel to length of the panel. Average strand mat thickness variation parallel to the length of the panel did not influence the bending strength, but the bonding characteristics among the outermost strands affects the bending strength of OSB. Hankinson formula can be used to predicts the MOE according to strand orientation in the surface of OSB, and more precise strand alignment and reducing thickness variation should be important in the structural performance of OSB panels.

Keywords

References

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