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    Volume 1, Issue 8 (September 2004)

    Probabilistic Fatigue: Computational Simulation

    (Received 6 September 2002; accepted 24 February 2004)

    Published Online: 30 August 2004


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    Probabilistic computational simulation of fatigue-life is illustrated in terms of several sample cases that have been generated over the past ten years. The cases are selected to illustrate applications to multi-scale, multi-discipline, and multi-physics. These cases include composite laminate; coupled thermal, mechanical, fatigue, and creep, pressurized tank; engine blades; engine rotor; and composite combustor liner. The fundamentals for probabilistic computational fatigue are briefly described, and general comments are included on what it takes to perform probabilistic computational fatigue and to validate it. Typical results show that fatigue-life can be evaluated for complex components and for complex loadings. Probability of survival curves can be generated, and probabilistic sensitivities influencing fatigue-life can be determined. The paper describes what can be done rather than details of a specific case.

    Author Information:

    Chamis, CC
    Senior Aerospace Scientist, NASA Glenn Research Center, Cleveland, OH

    Pai, SS
    Aerospace Engineer, NASA Glenn Research Center, Cleveland, OH

    Stock #: JAI11560


    DOI: 10.1520/JAI11560

    Title Probabilistic Fatigue: Computational Simulation
    Symposium ,
    Committee E08