Fatigue Crack Initiation and Growth in Ship Structures

  • Andersen, Michael Rye (Project Manager)

    Project Details

    Description

    Fatigue crack initiation and fatigue crack growth are important damage modes in ship structures. An important example is the large number of longitudinal to web frame connections, which make up an essential part of the production costs of a very large crude oil carrier (VLCC).
    The slot structures are complicated welded details exposed to dynamic loads during the service of the vessel and, if not adequately designed, significant fatigue cracking may occur and cause major costs of repair. This was the case of the early cracking of the second-generation VLCCs. The objective of the present work has been to present new fatigue analysis tools and to develop a new fatigue-resistant slot design which is suitable for application of welding robots.
    StatusFinished
    Effective start/end date01/09/199431/01/1998