The available fatigue crack growth data on mechanically loaded welded tubular connections from the UK Offshore Steel Research Project has been reviewed. It is found that fatigue cracks develop a characteristic aspect ratio which remains fairly constant throughout life. This crack shape is compared with a simple fracture mechanics model. The crack development with time enables the surface length to be related to the normalised life. From this it is determined that providing a crack of surface length equal to twice the member wall thickness can be found by in-service inspection, there is 30 per cent of life remaining to carry out a repair.


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    Title :

    The development of cracks in welded tubular connections of offshore structures


    Additional title:

    Entwicklung von Rissen in geschweissten Rohrverbindungen in meerestechnischen Anlagen


    Contributors:


    Publication date :

    1984


    Size :

    9 Seiten, 8 Bilder, 7 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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