William L. Hoover, James M. Ringe, Carl A. Eckelman, John A. Youngquist

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


This paper reports the results of cooperative research into the effect of species; number of plies per unit thickness; size and location of holes; and the degree and location of cross grain in comparison with controls containing no defects. In addition, laminated-veneer-lumber (LVL) containing actual knots was compared with the results obtained for equivalent size holes. Bending and shear properties of all specimens were determined. The evaluations for holes were made for a worst case scenario - the knots in each ply coincident along one edge of a furniture part. Species and number of plies had a significant effect on all properties. Holes had an effect only after a threshold level of section loss was reached. A regression model was developed that predicts the effect of size, number, and location of holes on maximum load. Angled grain significantly reduced the properties of LVL.

Original languageEnglish
Pages (from-to)15-23
Number of pages9
JournalForest Products Journal
Issue number9
StatePublished - Sep 1987

ASJC Scopus subject areas

  • Forestry
  • Materials Science (all)
  • Plant Science


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