## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 16, Parts 2-3American Society of Mechanical Engineers, 1997 - Arctic regions |

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Page 222

K , -AK ( 1 ) so ( 21 ) where a is the crack size , N is the number of cycles , AK is

the stress

the stress

the ...

K , -AK ( 1 ) so ( 21 ) where a is the crack size , N is the number of cycles , AK is

the stress

**range**intensity factor , C and m are material parameters and Ak ch isthe stress

**range**threshold intensity factor . The stress intensity factor is given bythe ...

Page 263

of fatigue stress

where p ( s ) is the probability density , oʻis the variance of random stress renge

S , So the equivalent stress

273 ) ...

of fatigue stress

**range**of onc fatigue sub - working situation is N ,, Owing towhere p ( s ) is the probability density , oʻis the variance of random stress renge

S , So the equivalent stress

**range**S. can be written by S - LEST ( 2 ) 5. - wvidi (273 ) ...

Page 180

If interaction between loading is not considered , we have da ( 10 ) = C ( AKF ) "

dN where ( 11 ) Aker = ( AKM ) . and Akef = Y ( a ) SVTO ( 12 ) where Sh is

equivalent stress

stress ...

If interaction between loading is not considered , we have da ( 10 ) = C ( AKF ) "

dN where ( 11 ) Aker = ( AKM ) . and Akef = Y ( a ) SVTO ( 12 ) where Sh is

equivalent stress

**range**defined in Eq . 6 , which is called as weighted averagestress ...

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### Contents

SPECTRAL MODELLING OF WAVES | 1 |

RISK ANALYSIS | 33 |

PROBABILISTIC MODELLING OF WAVES | 99 |

Copyright | |

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### Common terms and phrases

analysis applied approach assessment assumed bending calculated carried compared condition considered corrosion crack critical curve damage defects depth determined developed direction distribution earthquake effect element energy Engineering equation estimated evaluated experiment factor failure fatigue Figure force fracture frequency function given growth heat increase indicates initiation inspection International Japan joints length limited loading maintenance material maximum mean measured mechanical method notch observed obtained offshore operations parameters performed period pipe plate platform position prediction present pressure probability procedure properties range relative reliability reported Research respectively response risers safety ship shown shows side simulation specimens spectra standard statistical steel strain strength stress structure surface Table temperature term thickness toughness underwater wave weld metal welded joints yield