Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5American Society of Mechanical Engineers, 1993 - Arctic regions |
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Page 208
... pits . In order to consider colonies of arbitrarily spaced pits a study of more complex pit geometries was undertaken . Corrosion pits of paraboloid shape , 15.05 , 25.63 and 51.21 mm in diameter and 2/3 , 1/2 and 1/3 WT deep ...
... pits . In order to consider colonies of arbitrarily spaced pits a study of more complex pit geometries was undertaken . Corrosion pits of paraboloid shape , 15.05 , 25.63 and 51.21 mm in diameter and 2/3 , 1/2 and 1/3 WT deep ...
Page 209
... pit configurations had similar burst pressure predictions . In all cases , failure was first indicated at the small deep pit . Comparison of burst pressures of the various circumferential grouping of pits was within 2 % of the burst ...
... pit configurations had similar burst pressure predictions . In all cases , failure was first indicated at the small deep pit . Comparison of burst pressures of the various circumferential grouping of pits was within 2 % of the burst ...
Page 210
... pits suggested extension of crack initiating at the deepest pit ligament to neighbouring pit ligaments . As expected ... pits are more critical than circumferentially oriented pits . Burst tests indicated an 11 % decrease in burst ...
... pits suggested extension of crack initiating at the deepest pit ligament to neighbouring pit ligaments . As expected ... pits are more critical than circumferentially oriented pits . Burst tests indicated an 11 % decrease in burst ...
Contents
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 28 |
Fire and Pollution Safety | 36 |
Probabilistic Response Modelling | 56 |
Copyright | |
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Alberta Almen strip anticorrosion coating applied assessment backfill behaviour bending buckle lengths buckling burst pressure calculated cathodic protection compression concrete configuration cost crack propagation curvature deformation depth developed diameter directional drill disbonded displacement ditch effect Engineering environment equations factor failure FE analysis flow free spans friction gas pipeline grit blasting hoop stress increase installation integrity interaction length liquid load longitudinal material maximum measured mechanical metal loss monitoring NACE niobium offshore OLGA operating OTDR overcoating parameters Permafrost pile pipeline pipeline system pits plane strain plastic polychloroprene Polypropylene predictions Qinghai resistance scour seabed sensor settlement shear shear strength shown in Figure simulated Snamprogetti soil solution specimens steel stiffness strain strain gauges strength stress stress concentration structural surface Table temperature thickness TMCP values velocity wall wave weld Zeepipe zone