Estimation of crack propagation in a passenger ship's door corner

Mika Bäckström, Seppo Kivimaa

    Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

    Abstract

    The main purpose of this study is to have an overview of critical crack size and growth, and their influence on the remaining fatigue life of door corner and associated bulkhead in order to set proper period for repair and service of structural components.
    Growth of cracks is calculated by using the fracture mechanics for two cases: the first assessment is made for a passenger ship's door corner where no visible cracks have been detected and the second assessment is conducted for the structure where cracks have been detected during inspections.
    The analysed door corner is situated in area of maximum shear forces of the ship hull. Loading of the door corner is generated by applying the measured nominal shear stresses of the associated bulkhead.
    Measured stresses correspond to 1500-hr data of a passenger ship's normal operation in different wave conditions.
    Original languageEnglish
    Pages (from-to)241-251
    JournalShips and Offshore Structures
    Volume4
    Issue number3
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA4 Article in a conference publication
    Event4th ASRANet International Collaquium - Athens, Greece
    Duration: 25 Jun 200827 Jun 2008

    Fingerprint

    Crack propagation
    Ships
    Cracks
    Hulls (ship)
    Fracture mechanics
    Shear stress
    Repair
    Inspection
    Fatigue of materials

    Cite this

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    title = "Estimation of crack propagation in a passenger ship's door corner",
    abstract = "The main purpose of this study is to have an overview of critical crack size and growth, and their influence on the remaining fatigue life of door corner and associated bulkhead in order to set proper period for repair and service of structural components. Growth of cracks is calculated by using the fracture mechanics for two cases: the first assessment is made for a passenger ship's door corner where no visible cracks have been detected and the second assessment is conducted for the structure where cracks have been detected during inspections. The analysed door corner is situated in area of maximum shear forces of the ship hull. Loading of the door corner is generated by applying the measured nominal shear stresses of the associated bulkhead. Measured stresses correspond to 1500-hr data of a passenger ship's normal operation in different wave conditions.",
    author = "Mika B{\"a}ckstr{\"o}m and Seppo Kivimaa",
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    Estimation of crack propagation in a passenger ship's door corner. / Bäckström, Mika; Kivimaa, Seppo.

    In: Ships and Offshore Structures, Vol. 4, No. 3, 2009, p. 241-251.

    Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

    TY - JOUR

    T1 - Estimation of crack propagation in a passenger ship's door corner

    AU - Bäckström, Mika

    AU - Kivimaa, Seppo

    PY - 2009

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    N2 - The main purpose of this study is to have an overview of critical crack size and growth, and their influence on the remaining fatigue life of door corner and associated bulkhead in order to set proper period for repair and service of structural components. Growth of cracks is calculated by using the fracture mechanics for two cases: the first assessment is made for a passenger ship's door corner where no visible cracks have been detected and the second assessment is conducted for the structure where cracks have been detected during inspections. The analysed door corner is situated in area of maximum shear forces of the ship hull. Loading of the door corner is generated by applying the measured nominal shear stresses of the associated bulkhead. Measured stresses correspond to 1500-hr data of a passenger ship's normal operation in different wave conditions.

    AB - The main purpose of this study is to have an overview of critical crack size and growth, and their influence on the remaining fatigue life of door corner and associated bulkhead in order to set proper period for repair and service of structural components. Growth of cracks is calculated by using the fracture mechanics for two cases: the first assessment is made for a passenger ship's door corner where no visible cracks have been detected and the second assessment is conducted for the structure where cracks have been detected during inspections. The analysed door corner is situated in area of maximum shear forces of the ship hull. Loading of the door corner is generated by applying the measured nominal shear stresses of the associated bulkhead. Measured stresses correspond to 1500-hr data of a passenger ship's normal operation in different wave conditions.

    U2 - 10.1080/17445300902891457

    DO - 10.1080/17445300902891457

    M3 - Article in a proceedings journal

    VL - 4

    SP - 241

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    JO - Ships and Offshore Structures

    JF - Ships and Offshore Structures

    SN - 1744-5302

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