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    Measurement of fatigue damage based on the natural frequency for spot-welded joints

    New search for: Shang, De-Guang

    AbstractAccording to the observation of fatigue fractography for the spot-welded joints, cracking behavior was modeled for specimens of different dimensions using 3D FEA of a progressively growing crack that began at the joining surface, progressed to the outside surface, and finally broke. The natural frequency ratio of experimental and modeled situations displayed identical nonlinear damage behavior for different dimensional specimens. Thus, a new damage variable was proposed to measure fatigue damage using natural frequency nonlinear behavior, and a nonlinear fatigue damage model was developed. The results showed that this model can successfully describe fatigue damage for spot-welded joints.

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    Measurement of fatigue damage based on the natural frequency for spot-welded joints

    New search for: Shang, De-Guang

    AbstractAccording to the observation of fatigue fractography for the spot-welded joints, cracking behavior was modeled for specimens of different dimensions using 3D FEA of a progressively growing crack that began at the joining surface, progressed to the outside surface, and finally broke. The natural frequency ratio of experimental and modeled situations displayed identical nonlinear damage behavior for different dimensional specimens. Thus, a new damage variable was proposed to measure fatigue damage using natural frequency nonlinear behavior, and a nonlinear fatigue damage model was developed. The results showed that this model can successfully describe fatigue damage for spot-welded joints.

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    Measurement of fatigue damage based on the natural frequency for spot-welded joints

    New search for: Shang, De-Guang

    AbstractAccording to the observation of fatigue fractography for the spot-welded joints, cracking behavior was modeled for specimens of different dimensions using 3D FEA of a progressively growing crack that began at the joining surface, progressed to the outside surface, and finally broke. The natural frequency ratio of experimental and modeled situations displayed identical nonlinear damage behavior for different dimensional specimens. Thus, a new damage variable was proposed to measure fatigue damage using natural frequency nonlinear behavior, and a nonlinear fatigue damage model was developed. The results showed that this model can successfully describe fatigue damage for spot-welded joints.

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    Title:

    Measurement of fatigue damage based on the natural frequency for spot-welded joints

    Contributors:

    Shang, De-Guang (author)

    Publication date:

    2008-06-23

    Size:

    6 pages

    ISSN:

    0261-3069

    DOI:

    https://doi.org/10.1016/j.matdes.2008.06.048

    Type of media:

    Article (Journal)

    Type of material:

    Electronic Resource

    Language:

    English

    Keywords:

    Fatigue damage , Natural frequency , Spot-welded joint

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