A Vibration-Based Method for Determining St. Venant Torsional and Warping Stiffnesses of Members with Open Cross-Sections

    Volume 23, Issue 2 (March 1995)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 4


    Li, D-B
    Tsinghua University, Beijing,

    Chui, YH
    Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, New Brunswick

    Smith, I
    Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, New Brunswick

    (Received 9 June 1993; accepted 26 August 1994)

    Abstract

    A dynamic mechanical property identification method is presented based on a study of composite wood members with an open I-shape cross-section. Besides the bending stiffness which is identified by a bending vibration test, St. Venant torsional stiffness GKs, and warping stiffness EKw are identified by a separate torsional modal analysis. Three kinds of typical I-shape beams have been tested and their properties identified. The approach is based on Euler beam theory and an earlier torsional vibration model developed by the authors.


    Paper ID: JTE10907J

    DOI: 10.1520/JTE10907J

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    Author
    Title A Vibration-Based Method for Determining St. Venant Torsional and Warping Stiffnesses of Members with Open Cross-Sections
    Symposium , 0000-00-00
    Committee D07