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 | 1 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 28 |
OFFSHORE TECHNOLOGY | 56 |
Copyright | |
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addition allowable analysis applied approximately areas assessment associated assumed bending buckle calculated carried coating concrete considered construction corrosion crack criteria curvature deformation depth described determined developed diameter direction displacement distribution effect Engineering environment equations expected experiment factor failure field Figure flow force free spans increase initial installation interaction internal joint length limit load longitudinal lower material maximum measured mechanical method movement observed obtained occur Offshore operating parameters performed pile pipe pipeline pits plastic position predicted present pressure problem produced Quality range reduced relative resistance respectively response sand scour seabed shear shown shows significant simulated soil solution specimens stability steel stiffness strain strength stress structural subjected surface Table Technology temperature thickness values wall wave weld yield zone