Aspen Bibliography

Influence of percent alignment and shelling ratio on modulus of elasticity of oriented strandboard: a model investigation

W. Xu

Document Type

Article

Journal/Book Title/Conference

Forest Products Journal

Volume

50

Issue

10

First Page

43

Last Page

47

Publication Date

2000

Abstract

This paper uses a previously developed theoretical simulation model to investigate the influence of orientation level of strands as measured by percent alignment (PA), and shelling ratio (SR) (weight percentage of the face layer) on modulus of elasticity (MOE) of oriented strandboard (OSB). As expected, improving PA increases MOE-parallel and decreases MOE-perpendicular, but the decrease of MOE-perpendicular levels off after PA exceeds approximately 50 percent. Increasing SR improves MOE-parallel and decreases MOE-perpendicular, but the change of MOE is negligible after SR reaches approximately 0.7. This paper also shows that orientation level and use of different species in the core only have minimal influence on MOE. Use of MOE-ratio (MOE-parallel/MOE-perpendicular) to estimate PA in the face of three-layer commercial OSB is also discussed.

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