Probabilistic fracture mechanics based fatigue evaluation of ship structural details

Present ship building rules follow SN curve approach to evaluate the fatigue damage at identified locations while use of fracture mechanics approach is yet to receive due attention. In the present work, a methodology of evaluation of fatigue life of the longitudinal stiffener and transverse web frame connection using fracture mechanics has been demonstrated. Since various factors such as the crack dimensions, the crack growth law parameters and the applied loads are random in nature; they have been accounted for considering their randomness. Numerical results obtained with the present method for fatigue life of an oil tanker are compared with those based on IACS Common structural rules and a good agreement is observed between them. The present method may find useful application to risk based inspection of ship structures.

• Record URL:
  https://doi.org/10.1016/j.oceaneng.2012.12.039
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0029801812004659
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00298018
• Supplemental Notes:
  • Abstract reprinted with permission from Elsevier.
• Authors:
  • Doshi, Karan
  • Vhanmane, Suhas
• Publication Date: 2013-3-15

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 26-38
• Serial:
  • Ocean Engineering
  • Volume: 61
  • Issue Number: 0
  • Publisher: Pergamon
  • ISSN: 0029-8018
  • EISSN: 1873-5258
  • Serial URL: http://www.sciencedirect.com/science/journal/00298018

Subject/Index Terms

• TRT Terms: Fatigue strength; Fracture mechanics; Monte Carlo method; Oil tankers; Ship bodies; Shipbuilding; Structural analysis
• Subject Areas: Marine Transportation; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01487754
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 4 2013 12:37PM