Publications

Parunov, J. and Guedes Soares, C. (2008), "Effects of Common Structural Rules on Hull-Girder Reliability of an Aframax Oil Tanker", Reliability Engineering and System Safety, 2008, Vol. 93, pp. 1317-1327.

The paper aims at quantifying the changes in notional reliability levels that result from redesigning an existing aframax tanker to comply with Common Structural Rules (CSR) for Double Hull Oil Tankers. The probability of structural failure is calculated using a first-order reliability method. The evaluation of the wave-induced load effects that occur during long-term operation of the ship in the seaway is carried out in accordance to IACS recommended procedure, while transfer functions are calculated using sink-source 3D linear method. The still water loads are defined on the basis of a statistical analysis of loading conditions from the loading manual. The ultimate collapse bending moment of the midship cross section, which is used as the basis for the reliability formulation, is evaluated by progressive collapse analysis according to CSR.

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