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 34
... obtained from experiments . AK is the stress intensity factor range at the crack tip which can be evaluated as in Eq . 1 - b , in which Q is a geometry correction factor and S represents the constant amplitude stress range at the hot ...
... obtained from experiments . AK is the stress intensity factor range at the crack tip which can be evaluated as in Eq . 1 - b , in which Q is a geometry correction factor and S represents the constant amplitude stress range at the hot ...
Page 51
... obtained from the properties of spectrum . 3 . 5 . 6 . 7 . 8 . ยท corresponding probability density function given as : It should be mentioned here that assumption underlying Eq . ( 3 ) implies that df is to be evaluated only for z dz ...
... obtained from the properties of spectrum . 3 . 5 . 6 . 7 . 8 . ยท corresponding probability density function given as : It should be mentioned here that assumption underlying Eq . ( 3 ) implies that df is to be evaluated only for z dz ...
Page 225
... obtained fairly accurately using 3 - D finite element analysis . However , these methods prove to be very expensive in fatigue crack growth predictions since stress intensity factors for various crack sizes and shapes need to be ...
... obtained fairly accurately using 3 - D finite element analysis . However , these methods prove to be very expensive in fatigue crack growth predictions since stress intensity factors for various crack sizes and shapes need to be ...
Contents
Investigation of the Ergodicity Assumption for Sea States in the Reliability Assessment of Offshore | 1 |
OFFSHORE TECHNOLOGY PART | 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 reliability 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 variation vector weld weldments