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

Mika Bäckström, Seppo Kivimaa

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

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
Number of pages11
JournalShips and Offshore Structures
Volume4
Issue number3
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

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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.",
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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 journalArticleScientificpeer-review

TY - JOUR

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

AU - Bäckström, Mika

AU - Kivimaa, Seppo

PY - 2009

Y1 - 2009

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

VL - 4

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EP - 251

JO - Ships and Offshore Structures

JF - Ships and Offshore Structures

SN - 1744-5302

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