## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 14, Part 5American Society of Mechanical Engineers, 1995 - Arctic regions |

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Page 305

This node defines the objective or value

optimization . If the value

value for preferable choices , the optimal choice can be identified as the one that

...

This node defines the objective or value

**function**that is used as a basis foroptimization . If the value

**function**is defined such that it gives a higher expectedvalue for preferable choices , the optimal choice can be identified as the one that

...

Page 394

The use of this design enables to approximate the response surface through as a

second order polynomial

depending on these seven parameters : - diameter diameter - to - thickness ratio

...

The use of this design enables to approximate the response surface through as a

second order polynomial

**function**. If the pipe local behaviour is assumeddepending on these seven parameters : - diameter diameter - to - thickness ratio

...

Page 456

A penalty

penalty 2 1.05 1.10 1.15 1,20 1,25 1.30 1.35 YmY , in which the sum is over K = 4

design cases , and B ; is the reliability index for the ith design case expressed as

...

A penalty

**function**can be defined as 5 K M = ( B ; ( Y5Ym ) – B. ) ? B 3 minimumpenalty 2 1.05 1.10 1.15 1,20 1,25 1.30 1.35 YmY , in which the sum is over K = 4

design cases , and B ; is the reliability index for the ith design case expressed as

...

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### Contents

ENVIRONMENTAL CONSIDERATIONS | 1 |

GEOTECHNICS | 65 |

VOLUME IA OFFSHORE TECHNOLOGY VOLUME III MATERIALS ENGINEERING | 125 |

Copyright | |

9 other sections not shown

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### Common terms and phrases

allowable analysis applied approach approximately assessment associated axial behaviour bending bottom calculated coating considered construction corrosion cost criteria critical crossing curve deformation depth described determined diameter direction displacement distribution effect element Engineering equation factors failure field Figure flow force function geotechnical given ground important increase indicated initial inspection installation integrity interaction internal joint length limit load lower material maximum measurements Mechanics metal method movement natural obtained occur Offshore operating parameters performed pipe pipeline possible potential predicted presented pressure procedure properties range reduced reliability representative resistance response risk safety seabed shown shows slope soil span specimen steel strain strength stress structural surface Table Technology temperature tests thickness values wall wave weld