Volume 37, Issue 6 (November 2009)

    Material Variability and Repetitive Member Factors for the Allowable Properties of Engineered Wood Products

    (Received 1 July 2008; accepted 10 June 2009)

    Published Online: 2009

    CODEN: JTEOAD

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    Abstract

    It has been argued that repetitive member allowable property adjustments should be larger for high-variability materials than for low-variability materials. We report analytic calculations and simulations that suggest that the order of such adjustments should be reversed, that is, given the manner in which allowable properties are currently calculated, as the coefficient of variation of the strength distribution of individual elements increases, the upward repetitive member adjustments (if any) of assemblies constructed from these elements should decrease.


    Author Information:

    Verrill, Steve
    Mathematical Statistician, U.S. Dept. of Agriculture Forest Products Laboratory, Madison, WI

    Kretschmann, David E.
    Research General Engineer, U.S. Dept. of Agriculture Forest Products Laboratory, Madison, WI


    Stock #: JTE101924

    ISSN: 0090-3973

    DOI: 10.1520/JTE101924

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    Author
    Title Material Variability and Repetitive Member Factors for the Allowable Properties of Engineered Wood Products
    Symposium , 0000-00-00
    Committee D07