Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 18, Part 4American Society of Mechanical Engineers, 1999 - Arctic regions |
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Page 63
... Et is the peak pipe bending strain Since an ovality limit is seen as serviceability limit state , the load factors are all taken as unity and a maximum bending strain of 1.5 % is calculated using the formulation presented above .
... Et is the peak pipe bending strain Since an ovality limit is seen as serviceability limit state , the load factors are all taken as unity and a maximum bending strain of 1.5 % is calculated using the formulation presented above .
Page 64
w 1.0 % 324 Eb W8 0.9413D , EI 324 Ovality = 2 0.06 1+ -0.005 120 ( 8.7 ) X 8.7 - goos ) 2009-2013 - = + 0.005 = 0.015 0.5 % Bending Strain , Ed and the maximum bending strain in the side wall of the pipe may be estimated as : 0.0 % 0 2 ...
w 1.0 % 324 Eb W8 0.9413D , EI 324 Ovality = 2 0.06 1+ -0.005 120 ( 8.7 ) X 8.7 - goos ) 2009-2013 - = + 0.005 = 0.015 0.5 % Bending Strain , Ed and the maximum bending strain in the side wall of the pipe may be estimated as : 0.0 % 0 2 ...
Page 278
Storm data – 100 years Maximum wave height Associated mean period Surface current velocity Bottom current velocity 14.6 m 13.0 s 1.34 m / s 0.55 m / s Vessel Motions Turret position ( bow ) 125 m fore of COG Maximum vessel offset +90 m ...
Storm data – 100 years Maximum wave height Associated mean period Surface current velocity Bottom current velocity 14.6 m 13.0 s 1.34 m / s 0.55 m / s Vessel Motions Turret position ( bow ) 125 m fore of COG Maximum vessel offset +90 m ...
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Contents
PIPELINE RELIABILITY AND LIMIT STATES DESIGN | 1 |
DESIGN OF PIPELINES AND RISERS | 5 |
OMAE99PIPE5019 | 21 |
Copyright | |
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acceptable allowable analysis applied approach ASME assessment associated assumed axial bending branch buckling calculated capacity Conference considered construction Copyright corrosion cost crack defect defined deformation dent depth described determine developed diameter direction displacement distribution effect element Engineering equation factor failure field Figure force fracture function fuzzy given heat increase initial input inspection installation internal internal pressure joint length limit load material maximum measured Mechanics method modes neural networks obtained occur Offshore operating parameters performed pipe pipeline plastic possible predicted presented pressure probability problem range reduce reliability represent respectively risk safety sand shown shows soil specified specimens standard steel strain strength stress structural surface Table Technology temperature valve wall thickness weld yield