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    Author(s): Jody D. Gray; Shawn T. Grushecky; James P. Armstrong
    Date: 2008
    Source: In: Jacobs, Douglass F.; Michler, Charles H., eds. 2008. Proceedings, 16th Central Hardwood Forest Conference; 2008 April 8-9; West Lafayette, IN. Gen. Tech. Rep. NRS-P-24. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 139-142.
    Publication Series: Other
    Station: Northern Research Station
    PDF: View PDF  (183.03 KB)

    Description

    Moisture content has a significant impact on mechanical properties of wood. In recent years, stress wave velocity has been used as an in situ and non-destructive method for determining the stiffness of wooden elements. The objective of this study was to determine what effect moisture content has on stress wave velocity and dynamic modulus of elasticity. Results indicated significant relationships between moisture content and average wave time. This study suggests that increasing moisture content reduces stress wave velocity and needs to be considered when performing non-destructive evaluations using stress wave velocity.

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    Citation

    Gray, Jody D.; Grushecky, Shawn T.; Armstrong, James P. 2008. Stress wave velocity and dynamic modulus of elasticity of yellow-poplar ranging from 100 to 10 percent moisture content. In: Jacobs, Douglass F.; Michler, Charles H., eds. 2008. Proceedings, 16th Central Hardwood Forest Conference; 2008 April 8-9; West Lafayette, IN. Gen. Tech. Rep. NRS-P-24. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 139-142.

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https://www.fs.usda.gov/treesearch/pubs/13928