Fatigue assessment of welded joints of a mobile crusher frame

Mika Bäckström, Mikko Lehtonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific


    This study concentrates on the issues of the combination the users load profile with the measured stress spectrum in the fatigue design stage of the mobile crusher's frame. The study includes a fatigue assessment for three welded joints in the frame structure. The assessment was conducted with three different stress levels using stress spectra obtained from the field measurements. Double slope S-N curves with and without the cut-off limit were used in the damage calculations. A short discussion of appropriate finite element modelling and measurement techniques for nominal and hot spot stresses and a method for utilisation of the measurements results in the design stage is presented.
    Original languageEnglish
    Title of host publicationDesign and Analysis of Welded High Strength Steel Structures
    Subtitle of host publicationPapers presented at a meeting organised in conjunction with the 8th International Fatigue Congress FATIGUE 2002. Stockholm, Sweden, 3-7 June 2002
    PublisherEngineering Materials Advisory Services EMAS
    ISBN (Print)978-1-90153-734-5
    Publication statusPublished - 2002
    MoE publication typeB3 Non-refereed article in conference proceedings


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