BEHAVIOR OF COMPRESSIVE RESIDUAL STRESSES IN HIGH STRENGTH STEEL WELDS INDUCED BY HIGH FREQUENCY MECHANICAL IMPACT TREATMENT

Mansoor Khurshid*, Zuheir Barsoum, Gary Marquis

*Tämän työn vastaava kirjoittaja

    Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

    2 Sitaatiot (Scopus)

    Abstrakti

    Residual stress state plays an important role in the fatigue life of welded structures. They can be beneficial or detrimental, depending on the nature of residual stresses. High frequency mechanical impact (HFMI) treatment is a post-weld fatigue improvement technique for welded joints. In this research work the behavior of compressive residual stresses induced in welded joints in high strength steels (HSS) by HFMI treatment has been investigated. Longitudinal non load carrying attachments in HSS are tested with constant amplitude (CA) and variable amplitude (VA) loading. Stress concentration factors have been calculated using Finite Element Analysis (PEA). Residual stresses have been measured at different cycles during fatigue testing using X-ray diffraction technique. It is observed that the induced residual stresses are quite stable with some relaxation in CA and VA loading. The overloads in VA loading seem to be more detrimental. Relaxation of residual stresses is more obvious in VA tests.

    AlkuperäiskieliEnglanti
    OtsikkoPROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2013, VOL 5
    ToimittajatDL Stang, RT Hallman, W Springer, Y Kwon, RS Hafner
    KustantajaAmerican Society of Mechanical Engineers
    Sivumäärä8
    Vuosikerta5
    ISBN (painettu)978-0-7918-5569-0
    DOI - pysyväislinkit
    TilaJulkaistu - 2014
    OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
    TapahtumaASME Pressure Vessels and Piping Conference - Paris, Ranska
    Kesto: 14 heinäkuuta 201318 heinäkuuta 2013

    Conference

    ConferenceASME Pressure Vessels and Piping Conference
    LyhennettäPVP
    MaaRanska
    KaupunkiParis
    Ajanjakso14/07/201318/07/2013

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