Fatigue strength of HFMI treated structures under high R-ratio and variable amplitude loading

Eeva Mikkola, Matthew Doré, Mansoor Khurshid

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    14 Citations (Scopus)
    158 Downloads (Pure)


    High frequency mechanical impact (HFMI) is a post-weld treatment method for improving fatigue strength of welded joints. Much of the experimental research on fatigue performance of HFMI treated welded joints has concentrated on the beneficial compressive residual stresses created by the treatment and the fatigue strength of these joints under constant amplitude loading and relatively low mean stresses. Critical experimental data has been developed in a nearly completed European RFCS project. New mean stress and variable amplitude fatigue data are presented and evaluated with respect to a proposed International Institute of Welding (IIW) design guideline concerning HFMI treated welded joints.
    Original languageEnglish
    Title of host publication5th Fatigue Design Conference, Fatigue Design 2013, Senlis Ranska, 27-28.11.2013
    EditorsMansour Afzali, Fabien Lefebvre
    Publication statusPublished - 2013
    MoE publication typeA4 Article in a conference publication
    EventFatigue Design Conference - Senlis, France
    Duration: 27 Nov 201328 Nov 2013
    Conference number: 5

    Publication series

    NameProcedia Engineering
    ISSN (Print)1877-7058


    ConferenceFatigue Design Conference


    • Fatigue
    • High frequency mechanical impact (HFMI)
    • Mean stress
    • Stress relaxation
    • Variable amplitude loading

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