Journal Published Online: 01 March 1995
Volume 23, Issue 2

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



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.

Author Information

Li, D-B
Tsinghua University, Beijing, China
Chui, YH
University of New Brunswick, Fredericton, New Brunswick, Canada
Smith, I
University of New Brunswick, Fredericton, New Brunswick, Canada
Pages: 4
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Stock #: JTE10907J
ISSN: 0090-3973
DOI: 10.1520/JTE10907J