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 77
... welds . As a rule , origins of weld failures are flaws inherent in welding processes . The traditional acceptance ... girth welds are produced annually on pipes of 57 to 1420 - mm diameters . Quality of performing welds , i.e. the ...
... welds . As a rule , origins of weld failures are flaws inherent in welding processes . The traditional acceptance ... girth welds are produced annually on pipes of 57 to 1420 - mm diameters . Quality of performing welds , i.e. the ...
Page 80
... GIRTH WELDS WITH LOP AND HI - LOW One of the most common flaws in thin- walled pipe girth welds is lop , i.e. lack of penetration at the root . This type of flaw is often coincident with hi - low , i.e. pipe mis- alignment . To produce ...
... GIRTH WELDS WITH LOP AND HI - LOW One of the most common flaws in thin- walled pipe girth welds is lop , i.e. lack of penetration at the root . This type of flaw is often coincident with hi - low , i.e. pipe mis- alignment . To produce ...
Page 83
... welds in the first place and can be explained , in terms of computation model , by that shear will propagate through ... girth welds of 32 - mm and 57 - mm diameter Steel 10 pipes by 2.75 and 3.5 mm thick , respectively , and 300 mm long ...
... welds in the first place and can be explained , in terms of computation model , by that shear will propagate through ... girth welds of 32 - mm and 57 - mm diameter Steel 10 pipes by 2.75 and 3.5 mm thick , respectively , and 300 mm long ...
Contents
Design of the Troll Multiphase Transport System | 1 |
Propagation and Diffraction of Cnoidal Waves | 9 |
Dynamic Stresses and Motions of Offshore Pipelines During Laying | 17 |
Copyright | |
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applied axial base metal brazing cables calculated carbon equivalent chemical composition cnoidal waves coating cooling crack curve cycle defects developed dew point temperature diameter dynamic tension force effect electrode equation failure field Figure fitness-for-purpose flaws flow foam forge welding fracture fracture mechanics free span frequency friction welding gas pipeline glycol GMAW Gr.B HAZ hardness heat input hydrocarbon dew point induction heating inner pipe installation insulation J-Lay length line pipe linepipe load material maximum measured mechanical properties method nonlinear offshore pipelines operation parameters pipe material pipe wall pipeline Pipeline Technology ASME plate pressure problem procedure propagation PUFI PWHT 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