IJME 246

Paper title: Fatigue Assessment of Corroded Deck Longitudinals of Tankers

Authors

J Parunov, I Gledić, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Croatia.
Y Garbatov and C Guedes Soares,Centre for Marine Technology and Engineering (CENTEC), Instituto Superior Técnico, Technical University of Lisbon, Portugal.

Summary 

Fatigue life of deck longitudinals of oil tankers is analysed based on linear elastic fracture mechanics. A parametric formulation for the estimation of stress intensity factors and the Paris-Erdogan law are applied. Long-term effects of corrosion are modelled based on regression equations fitted to thickness measurements made during inspections of two tankers. Parametric studies are performed in order to investigate the importance of the governing parameters of crack propagation. A comparison of the fatigue analyses performed by linear fracture mechanics and S-N approaches is presented.

Reference

Transactions RINA, Vol 155, Part A1, International Journal Maritime Engineering, Jan-Mar 2013 

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