Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 10, Part 2American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 124
... stress range A. This stress range is modelled by a Weibull distribution Fso ( Ao ) = 1- exp ( - ( - > Δα A TABLE 1 : Basic variable distributions Basic Variables ( 40 ) ( 41 ) Initial crack size Crack initiation time Maximum crack size ...
... stress range A. This stress range is modelled by a Weibull distribution Fso ( Ao ) = 1- exp ( - ( - > Δα A TABLE 1 : Basic variable distributions Basic Variables ( 40 ) ( 41 ) Initial crack size Crack initiation time Maximum crack size ...
Page 127
... stress cycles N the mean of fatigue life Pf failure probability Sp practical fatigue stress range S estimated fatigue stress range Seff equivalent estimated fatigue stress range under stochastic load Smax maximum stress range in NT fatigue ...
... stress cycles N the mean of fatigue life Pf failure probability Sp practical fatigue stress range S estimated fatigue stress range Seff equivalent estimated fatigue stress range under stochastic load Smax maximum stress range in NT fatigue ...
Page 135
... stress range Probability of failure Strength Maximum stress in a cycle Minimum stress in a cycle Sop Crack opening stress Speak , Strough Peak and trough in a stress cycle Residual stress caused by welding or pre - load in threaded ...
... stress range Probability of failure Strength Maximum stress in a cycle Minimum stress in a cycle Sop Crack opening stress Speak , Strough Peak and trough in a stress cycle Residual stress caused by welding or pre - load in threaded ...
Contents
Spectral Modelling of Sea States With Multiple Wave Systems | 13 |
Statistical and Physical Models of Nonlinear Random Waves | 23 |
Extrapolation of Design Waves in the Gulf of Guineal | 33 |
Copyright | |
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amplitude applied approximation assumed bending moment calculated coefficient component computed condition considered correlation corresponding crack growth crack length damage damping defined density function detected deterministic effect element Engineering equation estimated evaluation failure probability Figure fracture mechanics frequency fuzzy Gaussian given hindcast inspection integral joints limit state function linear load lognormal maintenance matrix maximum mean value method nonlinear normal normal distribution obtained offshore structures order statistics parameters partial safety factors plate platform probabilistic probability density probability density function probability of failure procedure random variables redundancy reliability analysis reliability index repair residual stresses response sample seastates shear ship shown significant wave height simulation spectra spectrum standard deviation statistical stiffness storm strength stress range structural reliability surface system reliability Table tendon tension tion transfer function uncertainty updated variation vector vector process vertical wave bending Weibull Weibull distribution welded yield stress