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  1. Nondestructive evaluation of tensile properties of structural lumber from the spruce-pine-fir species grouping: phase 1 evaluation of modulus of elasticity

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    Author(s): Nusret As; Robert J. Ross; Xiping Wang; Christopher Adam. Senalik
    Date: 2019
    Source: In: Wang, X.; Sauter, U.H.; Ross, R.J., eds. 2019. Proceedings: 21st International Nondestructive Testing and Evaluation of Wood Symposium. General Technical Report FPL-GTR-272. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. pp 250-261.
    Publication Series: Proceedings - Paper (PR-P)
    Station: Forest Products Laboratory
    PDF: Download Publication  (1.0 MB)

    Description

    The study summarized in this report was conducted to examine the relationships between nondestructive evaluation parameters and the modulus of elasticity (MOE) of spruce–pine–fir structural lumber. A random sample of lumber was obtained from a local lumber yard and conditioned to approximately 10% equilibrium moisture content in the laboratory. Static bending and vibration (transverse and longitudinal) nondestructive tests were conducted on each specimen, and MOE was calculated. The relationship between static and dynamic modulus values was examined, and empirical models were developed using statistical regression analysis techniques. Results revealed excellent correlative relationships between MOE values. Coefficients of determination obtained were 0.92, 0.96, and 0.93 for MOE of static– transverse vibration, MOE of static–longitudinal vibration, MOE of longitudinal–transverse vibration, respectively.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    As, Nusret; Ross, Robert J.; Wang, Xiping; Senalik, Christopher Adam. 2019. Nondestructive evaluation of tensile properties of structural lumber from the spruce-pine-fir species grouping: phase 1 evaluation of modulus of elasticity. In: Wang, X.; Sauter, U.H.; Ross, R.J., eds. 2019. Proceedings: 21st International Nondestructive Testing and Evaluation of Wood Symposium. General Technical Report FPL-GTR-272. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. pp 250-261.

    Keywords

    Nondestructive evaluation, modulus of elasticity, spruce–pine–fir lumber

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https://www.fs.usda.gov/treesearch/pubs/59359