## 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 65

RELIABILITY ANALYSIS OF TLP TETHER SYSTEMS G. Jiao , T. Moan , and M. J. Marley Division of Marine Structures The Norwegian Institute of Technology Trondheim , Norway The corresponding

RELIABILITY ANALYSIS OF TLP TETHER SYSTEMS G. Jiao , T. Moan , and M. J. Marley Division of Marine Structures The Norwegian Institute of Technology Trondheim , Norway The corresponding

**failure**probability of one leg will be reduced.Page 69

for n = Upon the first tether

for n = Upon the first tether

**failure**, the axial variable stress in the remaining tethers in the same leg increases by a factor of n / ( n1 ) . As the bending stress is not affected , which is 70 % of the total variable stress ...Page 312

The fundamental concept of this approach is to balance and best utilise resources in a life cycle . It can aid the understanding of the interaction between safety and economic considerations . For example , high non - structural

The fundamental concept of this approach is to balance and best utilise resources in a life cycle . It can aid the understanding of the interaction between safety and economic considerations . For example , high non - structural

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### Contents

OFFSHORE TECHNOLOGY PART | 33 |

Extreme Forces on Large AxiSymmetric Offshore Structures in Directional Seas | 49 |

RELIABILITYBASED DESIGN AND INSPECTION | 55 |

Copyright | |

14 other sections not shown

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### Common terms and phrases

analysis applied approach approximately assessment assumed average basic calculated coefficient component computed considered constant corresponding cost crack growth curve cycles damage defect density depends depth derived described determined developed deviation distribution drag effects Engineering equation equivalent estimated evaluated example expected extreme factor failure failure probability fatigue Figure force fracture frequency function geometry given important included increase indicated initial inspection integration joints limit linear load Lognormal material maximum mean measured mechanics method normal obtained offshore structures operation parameters performed period platform predicted present pressure probabilistic probability procedure random variable range ratio reference relative reliability represent requirements respectively response risk safety sensitivity shown shows significant simulation standard statistical storm strength stress structure surface Table tension tether tubular uncertainty variables variation wave wave height weld