Experimental tests on offshore tubular joints show that fatigue cracks, as well as curving around the brace/chord intersection, curve under the weld toe as they propagate through the chord wall. However, when producing stress intensity factor solutions for tubular joints, this curvature is usually ignored due to modelling difficulties. In this paper, detailed numerical models of surface cracks in tubular T-joints are used to simulate experimental observations of crack curvature reported in the literature. When compared with the experimental observations, the numerical results help to clarify the mechanism behind crack curvature. Based on the principal stress criterion, an approximate method for predicting crack curvature is proposed.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Fatigue crack curvature under the weld toe in an offshore tubular joint


    Beteiligte:
    Bowness, D. (Autor:in) / Lee, M.M.K. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1998


    Format / Umfang :

    10 Seiten, 28 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    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


    Corrosion fatigue of stiffened offshore steel tubular joints

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



    Fatigue life of cathodically protected tubular joints of offshore structures

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


    Stresses in stiffened tubular T-joint of an offshore structure

    Shiyekar, M.R. / Kalani, M. / Belkune, R.M. | Tema Archiv | 1982