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 64
... limit . After that the stress is permanent and does not depend on the displacement ( Fig . 9 ) . Therefore it can be written that : p = = c.y , 0 ≤ y < R / c R , y > R / c ( 14 ) 1980 1994 1997 -0.6 1985 1991 Pipe displacement ...
... limit . After that the stress is permanent and does not depend on the displacement ( Fig . 9 ) . Therefore it can be written that : p = = c.y , 0 ≤ y < R / c R , y > R / c ( 14 ) 1980 1994 1997 -0.6 1985 1991 Pipe displacement ...
Page 67
... limit plasticity , r is the coefficient of load cycle asymmetry , σ . , is the endurance limit , m is the material characteristic . The stress amplitude σ takes into account stress concentration due to the pipe wall defects and is ...
... limit plasticity , r is the coefficient of load cycle asymmetry , σ . , is the endurance limit , m is the material characteristic . The stress amplitude σ takes into account stress concentration due to the pipe wall defects and is ...
Page 107
... Limit Stress , ksi Hutchinson Exponent Proportional Limit Strain , in / in Pipe Net Internal Pressure , ksi Pipe Total Length , ft . || || || || || || = 0.4 Steel Modulus of Elasticity , ksi = = 29000 Steel SMYS , ksi G 65 = 52.33 ...
... Limit Stress , ksi Hutchinson Exponent Proportional Limit Strain , in / in Pipe Net Internal Pressure , ksi Pipe Total Length , ft . || || || || || || = 0.4 Steel Modulus of Elasticity , ksi = = 29000 Steel SMYS , ksi G 65 = 52.33 ...
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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