Fatigue strength of welded tubular joints is one of the most important items in the design of offshore structures. Various design formulas have been proposed both on the stress concentration factors and on the fatigue failure life. However, most of these design curves do not involve any informations on the relationship between the crack initation life Ne and the failure life Nf nor on the relationship between the crack initiation life Nc and the failure life Nf nor on the relationship between the fatigue design curves and the detailed procedure of hot spot stress estimation. This paper presents a re-analysis of fatigue data of various welded tubular joints obtained in Japan. The relationship between the fatigue crack initiation life Nc and the failure life Nf was examined in wide range of fatigue life. Scatters in fatigue life estimation were also examined in relation with various procedures of hot spot stress estimation: measurement, finite element method, Beale's formulas and, Juang's formula. Applicability to design is discussed with reference to the confidence limits of fatigue lives Nc and Nf. (Wassmann)


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    An analysis on applicability of fatigue data to design of offshore tubular joints


    Additional title:

    Analyse der Anwendbarkeit von Dauerfestigkeitswerten bei der Auslegung von Rohrleitungsverbindungen im Offshorebereich
    Titel japanisch


    Contributors:
    Iwasaki, T. (author) / Asano, K. (author) / Katoh, A. (author) / Kawahara, M. (author)


    Publication date :

    1980


    Size :

    10 Seiten, 13 Bilder, 5 Tabellen, 22 Quellen


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Japanese




    Corrosion fatigue of stiffened offshore steel tubular joints

    Ramachandra Murthy, D.S. / Madhava Rao, A.G. | Tema Archive | 1994


    Offshore Tubular Joints Conference

    UEG Offshore Research | TIBKAT | 1985


    Fatigue Design and Analysis for Welded Tubular Joints: Results From the API Offshore Tubular Joint Research Center

    Mohr, W. C. / Dimitrakis, S. / Lawrence, F. V. et al. | British Library Conference Proceedings | 1995


    Fatigue life of cathodically protected tubular joints of offshore structures

    Murthy, D.S.R. / Gandhi, P. / Raghava, G. | Tema Archive | 1998