Very high cycle regime fatigue of thin walled tubes made from austenitic stainless steel

J.V. Carstensen, H. Mayer, P. Brøndsted

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    Fatigue life data of cold worked tubes (diameter 4 mm, wall thicknesses 0.25 and 0.30 mm) of an austenitic stainless steel, AISI 904 L, were measured in the regime ranging from 2 × 105 to 1010 cycles to failure. The influence of the loading frequency was investigated as data were obtained in conventional rotating bending at 160 and 200 Hz and in ultrasonic axial loading at 20 kHz. Above 5 × 106 cycles the fatigue lifetimes found with both methods were comparable. The results show that the slope of the S–N curve significantly decreases beyond 108 cycles. Fracture surfaces were examined using scanning electron microscopy. Fatigue cracks initiate at the surface and no significant influence from frequency or from loading modes on fatigue crack initiation and growth is visible.

    Original languageEnglish
    JournalFatigue & Fracture of Engineering Materials and Structures
    Volume25
    Issue number8-9
    Pages (from-to)837-844
    ISSN8756-758X
    DOIs
    Publication statusPublished - 2002
    EventInternational conference on fatigue in the very high cycle regime - Vienna, Austria
    Duration: 2 Jul 20014 Jul 2001

    Conference

    ConferenceInternational conference on fatigue in the very high cycle regime
    CountryAustria
    CityVienna
    Period02/07/200104/07/2001

    Keywords

    • Bending fatigue
    • Endurance limit
    • Frequency influence
    • Ultrasonic fatigue
    • Very high cycle fatigue

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