Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 2American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 205
... mean fatigue strength and its expected uncertainty at long lives . The underlying analytical model is at present solely based on fatigue crack initiation and early crack growth and is restricted to long - life applications . Several ...
... mean fatigue strength and its expected uncertainty at long lives . The underlying analytical model is at present solely based on fatigue crack initiation and early crack growth and is restricted to long - life applications . Several ...
Page 209
... Mean and Mean 12s 1E + 07 1E + 08 Fatigue Life , Nt ( cycles ) 1E + 09 Comparison of simulation results using Eq . 11 with the fatigue test data of Nihei et al.18,19,20 for 6 mm butt weldments , R = -1 . The solid lines represent the mean ( ...
... Mean and Mean 12s 1E + 07 1E + 08 Fatigue Life , Nt ( cycles ) 1E + 09 Comparison of simulation results using Eq . 11 with the fatigue test data of Nihei et al.18,19,20 for 6 mm butt weldments , R = -1 . The solid lines represent the mean ( ...
Page 310
... mean zero up crossing wave period T2 the mean wind direction ẞ · the mean wind velocity Vw · · the mean current direction the mean current velocity Vc . A common assumption about sea environment is made here , i.e. , an indefinite sum ...
... mean zero up crossing wave period T2 the mean wind direction ẞ · the mean wind velocity Vw · · the mean current direction the mean current velocity Vc . A common assumption about sea environment is made here , i.e. , an indefinite sum ...
Contents
Investigation of the Ergodicity Assumption for Sea States in the Reliability Assessment of Offshore | 1 |
OFFSHORE TECHNOLOGY PART A | 33 |
Extreme Forces on Large AxiSymmetric Offshore Structures in Directional Seas | 49 |
Copyright | |
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amplitude applied assessment assumed axial basic variables behaviour calculated coefficient component computed considered corrosion cost crack depth crack growth rate CTOD curve defect deterministic drag force effects Engineering environmental equation estimated evaluated extreme failure mode failure probability fatigue crack growth fatigue damage fatigue failure fatigue strength Figure fracture mechanics fracture toughness frequency Gaussian geometry hindcast initial inspection instability load integration limit state function linear Lognormal LRFD material maxima maximum mean value method nonlinear normal normal distribution North Sea obtained offshore structures parameters platform predicted pressure probabilistic probability density function probability distribution quadratic random variable ratio reliability analysis reliability index residual stresses response risk S-N curve safety sea-state significant wave height simulation spectral standard deviation statistical stochastic storm stress intensity factor stress range Table tension tether tubular joints vector Weibull distribution weld weldments