Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 5American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 39
... tube . The pressure at which the tube at the bottom of the picture was bent was high enough to initiate a propagating buckle which collapsed one side of the test specimen . ( The propagation pressure of this tube was P / P = 0.323 ...
... tube . The pressure at which the tube at the bottom of the picture was bent was high enough to initiate a propagating buckle which collapsed one side of the test specimen . ( The propagation pressure of this tube was P / P = 0.323 ...
Page 40
... tube under external pressure ( P ) . The tube has mean radius Ro and wall thickness t . The Ro / t values of interest are low enough so that buckling occurs in the plastic range . Because the tube is long , we assume that buckling ...
... tube under external pressure ( P ) . The tube has mean radius Ro and wall thickness t . The Ro / t values of interest are low enough so that buckling occurs in the plastic range . Because the tube is long , we assume that buckling ...
Page 99
... tubes and helically wound reinforcing cables are modelled individually . The improvement in the results obtained with the incorporation of the new thick tube layer is demonstrated for a flexible pipe with D / t = 5 . Extensive finite ...
... tubes and helically wound reinforcing cables are modelled individually . The improvement in the results obtained with the incorporation of the new thick tube layer is demonstrated for a flexible pipe with D / t = 5 . Extensive finite ...
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Common terms and phrases
actuator analysis applied assessment axial ball valve Beaufort Sea bending bifurcation break-out buckling calculations check valve circumferential Cisco field coefficient collapse corrosion crack ensembles crack tip damage deformation density distribution effect equations ESD valve Figure flow force fracture fracture mechanics free span function HAZ toughness Houston hydrodynamic ice feature ice hole ice keel ice scour increase installation layer length line pipe Lougheed Island material maximum method mode shape Offshore Mechanics Offshore Technology Conference on-bottom stability parameters partial safety factors pearlite permafrost pipe displacement pipe weight pipeline plastic plate platform predicted pressure procedure radial ratio reliability riser rupture scour hole seabed seastate shows simulated Sotberg stability design strength stress structure Submarine Pipelines subsea subsea ESD surface Table tensile tensile strength tracers tube uncertainty values variables velocity vertical wave yield strength