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 27
... cracks may occur in the circumferential section of pipes consisting of non - linearly displaced circumferential hydrogen induced cracks joined together by radial or corrosive crack growth . Such crack ensembles found by Non ...
... cracks may occur in the circumferential section of pipes consisting of non - linearly displaced circumferential hydrogen induced cracks joined together by radial or corrosive crack growth . Such crack ensembles found by Non ...
Page 28
... crack Crack ensembles found in pipe walls can be arranged in any number of ways . They can vary in length , vary in the number of HICS and radial bridgeing cracks which constitute the ensemble . The positioning of the crack tips with ...
... crack Crack ensembles found in pipe walls can be arranged in any number of ways . They can vary in length , vary in the number of HICS and radial bridgeing cracks which constitute the ensemble . The positioning of the crack tips with ...
Page 29
... crack ensemble cannot be replaced or characterized by a single radial crack of identical projected length . The reason is found in an additional superimposed bending load due to the ensemble geometry . R45e turned out to be the most ...
... crack ensemble cannot be replaced or characterized by a single radial crack of identical projected length . The reason is found in an additional superimposed bending load due to the ensemble geometry . R45e turned out to be the most ...
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addition analysis applied approach assessment assumed bending calculations caused considered CONTINUE corrosion crack damage deformation depth described diameter direction displacement distribution effect energy Engineering ensemble equations factors failure field Figure flow force fracture function given hole included increase initial installation internal layer length limit load material maximum mean measured mechanical method mode movement obtained occurred Offshore operation parameters pipe pipeline plastic plate platform position predicted presented pressure probability problem procedure properties radial range reduced relative reliability resistance response safety scaling scour seabed shown shows simulated soil solution span stability steel strain strength stress structure subsea surface Table term thickness toughness tracers tube uncertainty values valve variables wall wave weight weld