Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 4American Society of Mechanical Engineers, 2001 - Arctic regions |
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Page 66
Stress , P 50.0000 0.0000 -50.0000 -100.0000 -150.0000 -200.0000 -250.0000 -300.0000 -350.0000 Y -24.2 -17.5 -10.8 -4.0 2.7 9.4 16.2 22.9 29.6 36.3 43.1 25.6 16.7 -7.9 9.7 wwwwwwwwww Fig . 12 Bending moment , KN * m So , as it is ...
Stress , P 50.0000 0.0000 -50.0000 -100.0000 -150.0000 -200.0000 -250.0000 -300.0000 -350.0000 Y -24.2 -17.5 -10.8 -4.0 2.7 9.4 16.2 22.9 29.6 36.3 43.1 25.6 16.7 -7.9 9.7 wwwwwwwwww Fig . 12 Bending moment , KN * m So , as it is ...
Page 67
... stress amplitude σ takes into account stress concentration due to the pipe wall defects and is calculated as follows : The calculation was carried out using FEM program ANSYS v.5.3 . Using the described method , limit pressure was ...
... stress amplitude σ takes into account stress concentration due to the pipe wall defects and is calculated as follows : The calculation was carried out using FEM program ANSYS v.5.3 . Using the described method , limit pressure was ...
Page 172
... stress field is maintained in the reference field . The actual stress field is a ) stress critical stress increasing constraint 2 Distance from crack tip b ) Jreference increasing constraint Jer ; ef Jerl Jcr2 Japplied Figure 2. a ...
... stress field is maintained in the reference field . The actual stress field is a ) stress critical stress increasing constraint 2 Distance from crack tip b ) Jreference increasing constraint Jer ; ef Jerl Jcr2 Japplied Figure 2. a ...
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Common terms and phrases
accretion analysis annulus Arctic Engineering Arctic Ocean axial loading behavior bending stiffness Bohai buckle arrestor cable calculated carrier pipe catenary coefficient collapse compressive Conference on Offshore configuration corrosion crack damping ratio deepwater defect deformation Det Norske Veritas developed diameter displacement dynamic elastic experimental failure pressures Figure finite element finite element analysis flexible pipe flowline fluid fracture freespans gauge grooves heat transfer heat transfer coefficient hummocks ice force ice load ice sheet increase installation insulation internal pressure layer length liner maximum Mechanics and Arctic method Offshore Mechanics operation parameters PETROBRAS phase pipeline pipeline system plastic predicted ratio reeling Rio de Janeiro riser system risk sagging sand scour sea ice seabed shear stress simulation soil specimens stamukhas steel strain strain gauges stress structure subsea surface temperature tension tests thermal thickness titanium values velocity water depth weld wrinkle