Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 10, Part 5American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 102
... curve ( Lotsberg and Andersen , 1985 ) . The slope m of the S - N curve is sometimes seen to be introduced as a random quantity . However , based on a typical scatter of the S - N data , a variability of the constant K is sufficient in ...
... curve ( Lotsberg and Andersen , 1985 ) . The slope m of the S - N curve is sometimes seen to be introduced as a random quantity . However , based on a typical scatter of the S - N data , a variability of the constant K is sufficient in ...
Page 107
... curve ( high U , ) moves into the low cycle fatigue ( high strain ) area . Figure 10 gives similar curves for the site in 80 m water depth . The total damage ( deterministic estimate ) is lower here than for the case in 30 m water depth ...
... curve ( high U , ) moves into the low cycle fatigue ( high strain ) area . Figure 10 gives similar curves for the site in 80 m water depth . The total damage ( deterministic estimate ) is lower here than for the case in 30 m water depth ...
Page 112
... curve D = 0.02 X cos ( ) X X - curve X H / T ( 10 % incr . ) , D = 0.3 Антр D = 0.1 -- D = 0.3 3000 4000 5000 D 0 4000 5000 6225 Ws W ( N / m ) Fig 11 - Importance factors , F2 curve 30 m water depth - ( % ) 50 40 30 20 20 10 K W S f m ...
... curve D = 0.02 X cos ( ) X X - curve X H / T ( 10 % incr . ) , D = 0.3 Антр D = 0.1 -- D = 0.3 3000 4000 5000 D 0 4000 5000 6225 Ws W ( N / m ) Fig 11 - Importance factors , F2 curve 30 m water depth - ( % ) 50 40 30 20 20 10 K W S f m ...
Contents
Propagation and Diffraction of Cnoidal Waves | 9 |
Dynamic Stresses and Motions of Offshore Pipelines During Laying | 17 |
TimeDevelopment of Scour Induced Free Spans of Pipelines | 25 |
Copyright | |
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applied axial base metal brazing cables calculated carbon equivalent chemical composition cnoidal waves coating cooling crack CTOD curve cycle defects developed dew point temperature diameter dynamic tension force effect electrode equation field Figure fitness-for-purpose flaws flow foam forge welding fracture fracture mechanics free span frequency friction welding gas pipeline GMAW Gr.B HAZ hardness heat input hydrocarbon dew point induction heating inner pipe installation insulation internal J-Lay length line pipe linepipe load material maximum measured mechanical properties method microstructure nonlinear offshore pipelines operation ovalization parameters pipe material pipe wall pipeline plate pressure problem procedure propagation PUFI PWHT ratio reeling S-N curves seam weld simulation Specimen steel stress surface T-cross portion tensile strength thermal thermal insulation toughness tube UOE pipe velocity wall thickness water depth water dew point weld metal X80 grade yield strength