Volume 2, Issue 3 (March 2005)

    Effect of Residual Stresses on the Fatigue Crack Propagation in Welded Joints

    (Received 21 January 2004; accepted 4 May 2004)

    Published Online: 2005

    CODEN: JAIOAD

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    Abstract

    The effect of residual stress on the fatigue crack growth was investigated for cyclic tension. Three-point bend specimens were used with through thickness notches at the center line of the welded joint. The experiments were performed for different load amplitudes and load ratios under conditions of small-scale yielding. The influence of the residual stresses on fatigue crack growth was estimated by experimentally observed fatigue crack growth rate and measurement of residual stresses at the surface of specimen. This paper describes an approach taken in two models to estimate the residual stress effect on fatigue crack propagation and to predict remaining service life of a welded structure.


    Author Information:

    Gubeljak, N
    University of Maribor, Faculty of Mechanical Engineering, Maribor, SI

    Predan, J
    University of Maribor, Faculty of Mechanical Engineering, Maribor, SI

    Pippan, R
    Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Leoben,

    Oblak, M
    University of Maribor, Faculty of Mechanical Engineering, Maribor, SI


    Stock #: JAI12036

    ISSN: 1546-962X

    DOI: 10.1520/JAI12036

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    Author
    Title Effect of Residual Stresses on the Fatigue Crack Propagation in Welded Joints
    Symposium Fatigue and Fracture Mechanics: 34th Volume, 2003-11-21
    Committee E08