The probability of failure of steel jacket platforms subjected to fatigue damage is computed by means of Monte Carlo simulations using limit state functions in which wave, wind, and deck loadings are expressed in terms of empirical functions of uncertain maximum wave height. Limit state functions associated with the base shear capacity of the jacket and the shear capacity of the deck legs were used. The sensitivity of the probability of failure to the coefficient of variation of resistance, of wave height, of resistance and loading biases, and to parameters in empirical loading functions, as well as the influence of the reserve strength ratio is analyzed using a simplified limit state function. Results from simulations are compared to those obtained with a formulation that relates the reserve strength ratio to the reliability index. An application to risk based inspection planning for extension of the service life of a platform is given.
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e-mail: eheredia@imp.mx
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November 2008
Research Papers
Reliability Analysis of Marine Platforms Subject to Fatigue Damage for Risk Based Inspection Planning
Ernesto Heredia-Zavoni,
e-mail: eheredia@imp.mx
Ernesto Heredia-Zavoni
Instituto Mexicano del Petróleo
, Eje Central Lázaro Cárdenas 152, Distrito Federale 07730, Mexico
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Francisco Silva-González,
Francisco Silva-González
Instituto Mexicano del Petróleo
, Eje Central Lázaro Cárdenas 152, Distrito Federale 07730, Mexico
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Roberto Montes-Iturrizaga
Roberto Montes-Iturrizaga
Instituto Mexicano del Petróleo
, Eje Central Lázaro Cárdenas 152, Distrito Federale 07730, Mexico
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Ernesto Heredia-Zavoni
Instituto Mexicano del Petróleo
, Eje Central Lázaro Cárdenas 152, Distrito Federale 07730, Mexicoe-mail: eheredia@imp.mx
Francisco Silva-González
Instituto Mexicano del Petróleo
, Eje Central Lázaro Cárdenas 152, Distrito Federale 07730, Mexico
Roberto Montes-Iturrizaga
Instituto Mexicano del Petróleo
, Eje Central Lázaro Cárdenas 152, Distrito Federale 07730, MexicoJ. Offshore Mech. Arct. Eng. Nov 2008, 130(4): 041001 (9 pages)
Published Online: September 29, 2008
Article history
Received:
September 18, 2006
Revised:
November 15, 2007
Published:
September 29, 2008
Citation
Heredia-Zavoni, E., Silva-González, F., and Montes-Iturrizaga, R. (September 29, 2008). "Reliability Analysis of Marine Platforms Subject to Fatigue Damage for Risk Based Inspection Planning." ASME. J. Offshore Mech. Arct. Eng. November 2008; 130(4): 041001. https://doi.org/10.1115/1.2904945
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