Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 3American Society of Mechanical Engineers, 2002 - Arctic regions |
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Page 56
... Calculated 5 10 15 20 Anglerange ( deg 25 30 upc Ис = π [ p ̧ds R2 2EA sin2 a FIGURE 6 - SELECTED SLIP FORMULATION FIGURE 7 - MEASURED VERSUS CALCULATED MAXIMUM STRESS RANGE FOR ANGULAR POS . 0 ° Total Stress [ MPa ] 550 500 Position 90 ...
... Calculated 5 10 15 20 Anglerange ( deg 25 30 upc Ис = π [ p ̧ds R2 2EA sin2 a FIGURE 6 - SELECTED SLIP FORMULATION FIGURE 7 - MEASURED VERSUS CALCULATED MAXIMUM STRESS RANGE FOR ANGULAR POS . 0 ° Total Stress [ MPa ] 550 500 Position 90 ...
Page 57
... Calculated -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 Angle ( deg ) FIGURE 10- COMPARISON OF TOTAL STRESS HISTORY - STATION 1.5– ANGULAR POS . 0 ° – TEST 6 - Total stress ( MPa ) -100 100 50 Measured Calculated Total stress ...
... Calculated -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 Angle ( deg ) FIGURE 10- COMPARISON OF TOTAL STRESS HISTORY - STATION 1.5– ANGULAR POS . 0 ° – TEST 6 - Total stress ( MPa ) -100 100 50 Measured Calculated Total stress ...
Page 108
... calculated the maximum nominal tensile stresses for the different sections of the legs based on the 100 - year wave . The most critical girth weld is CW80 , which comprise the transition between 420 and 690 steel . CW80 has a nominal ...
... calculated the maximum nominal tensile stresses for the different sections of the legs based on the 100 - year wave . The most critical girth weld is CW80 , which comprise the transition between 420 and 690 steel . CW80 has a nominal ...
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21st International Conference alloys analysis anchor applied assessment axial calculated coating coefficient composite compressive Conference on Offshore corrosion crack growth crack initiation damage defect deformation depth Det Norske Veritas developed diameter displacement distribution effect Engineering June 23-28 equation evaluation failure fatigue crack fatigue test Figure finite element flaw flexible pipe flowline fracture mechanics fracture toughness function Grade heat hydrogen hydrogen embrittlement ice load increase installation insulation integrity joint laser weld layer length longitudinal maximum measured mechanical properties method Norsk Hydro Norway Offshore Mechanics parameters performed piezoelectric pipeline plastic plate predicted pressure reliability residual stress rope S-N curve safety factors sensors shown simulation solution specimens steel strain strength stress range surface syntactic foam Table Technology temperature tensile tension thermal thermal conductivity thermal insulation thickness titanium titanium risers uncertainties variables velocity Weibull distribution yield strength