Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 120
... stress cycles . The range of the stress intensity factor AK is a function of the far field stress range and the size and geometry of the crack and is expressed as AK Дo Y ( a ) Vа = ( 3 ) wheresova is the theoretical result for the stress ...
... stress cycles . The range of the stress intensity factor AK is a function of the far field stress range and the size and geometry of the crack and is expressed as AK Дo Y ( a ) Vа = ( 3 ) wheresova is the theoretical result for the stress ...
Page 124
... stress range Ao . This stress range is modelled by a Weibull distribution 0.5 0.15 TABLE 1 : Basic variable distributions Basic Variables Distribution Initial crack size Gamma Crack initiation time Exponential Maximum crack size Fixed ...
... stress range Ao . This stress range is modelled by a Weibull distribution 0.5 0.15 TABLE 1 : Basic variable distributions Basic Variables Distribution Initial crack size Gamma Crack initiation time Exponential Maximum crack size Fixed ...
Page 127
... stress cycles N the mean of fatigue life Pf failure probability Sp practical fatigue stress range $ estimated fatigue stress range Seff equivalent estimated fatigue stress range under stochastic load maximum stress range in NT fatigue ...
... stress cycles N the mean of fatigue life Pf failure probability Sp practical fatigue stress range $ estimated fatigue stress range Seff equivalent estimated fatigue stress range under stochastic load maximum stress range in NT fatigue ...
Contents
VORTEX SHEDDING AND VIBRATION | 187 |
OCEAN WAVES AND CURRENT | 209 |
COMPUTATIONAL METHODS | 247 |
Copyright | |
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added mass amplitude analysis approximately average body boundary condition cable calculated circular cylinder components computed correlation density diffraction displacement distribution drag coefficient dynamic effects Ekofisk Engineering experimental field Figure finite element floating flow fluid free surface frequency domain function Green function horizontal hydrodynamic hydrodynamic forces incident wave integral equation irregular waves length lift force linear load low-frequency matrix maximum measured method mode mode shapes mooring motion natural frequency nonlinear obtained Ocean Offshore Structures OMAE open boundary oscillation parameters phase velocity platform predicted present pressure problem random waves ratio response Reynolds number riser Sarpkaya seabed second-order ship simulation small forward solitary wave solution spectral spectrum stiffness surge tank tanker tension tether theory transverse values vector velocity potential vertical vessel vibration vortex vortices water depth wave drift damping wave forces wave height wave profile