The Use of Digital Image Correlation to Verify the Behavior of Fiber Metal Laminate Cylinders under Torsional Loading

    Volume 3, Issue 5 (May 2006)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Page Count: 9


    Backman, D
    National Research Council, Institute for Aerospace Research, Ottawa, ON

    Jodoin, A
    National Research Council, Institute for Aerospace Research, Ottawa, ON

    Poon, C
    National Research Council, Institute for Aerospace Research, Ottawa, ON

    Mendis, Y
    Carleton University, Ottawa, ON

    (Received 3 June 2004; accepted 30 January 2006)

    Abstract

    Measurements made using digital image correlation were compared to both strain gages and displacement transducers during the testing of a fiber metal laminate cylinder under torsional loading. The image correlation results showed very good agreement with measurements made using both strain gages and displacement transducers. The image correlation results were also used to measure out-of-plane displacement of the cylinder and to determine the exact onset of initial buckling. Although strain gages remain a proven and valuable technology for measuring strain, image correlation can completely characterize full-field strains and full-field displacements in the cylinder. In addition, image correlation is able to provide insight into the material behavior at strain values where the gages are less reliable and more prone to failure.


    Paper ID: JAI12763

    DOI: 10.1520/JAI12763

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    Author
    Title The Use of Digital Image Correlation to Verify the Behavior of Fiber Metal Laminate Cylinders under Torsional Loading
    Symposium Full-Field Optical Deformation Measurement: Applications and User Experience, 2004-05-20
    Committee E08