Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 3; Volume 7, Part 3American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 261
... coarse grained HAZ actually at the fatigue crack tip . If the original fatigue crack samples coarse grain > 80 μm ( ASTM 4 ) then a low CTOD value may be obtained . Such situations have caused both complete fractures and ' pop - ins ...
... coarse grained HAZ actually at the fatigue crack tip . If the original fatigue crack samples coarse grain > 80 μm ( ASTM 4 ) then a low CTOD value may be obtained . Such situations have caused both complete fractures and ' pop - ins ...
Page 279
... coarse grained zone , but especially for the SMAW weldments it was difficult to hit this zone at the prescribed depth of 3 mm , and only a few SMAW specimens had the notch positioned in the coarse grained zone . The best positioning was ...
... coarse grained zone , but especially for the SMAW weldments it was difficult to hit this zone at the prescribed depth of 3 mm , and only a few SMAW specimens had the notch positioned in the coarse grained zone . The best positioning was ...
Page 282
In several cases it was observed that ductile crack growth could occur through the coarse grained zone without triggering a brittle fracture , fig 13 . The majority of brittle fractures were preferenti- ally initiated in the coarse grained ...
In several cases it was observed that ductile crack growth could occur through the coarse grained zone without triggering a brittle fracture , fig 13 . The majority of brittle fractures were preferenti- ally initiated in the coarse grained ...
Contents
ADVANCED COMPOSITES | 1 |
PAS2tm | 9 |
OFFSHORE TECHNOLOGY GEOTECHNICAL ENGINEERING | 24 |
Copyright | |
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abrasion accelerated cooled analysis as-welded assessment austenite axial boron brace brittle fracture CGHAZ Charpy Charpy-V chemical composition chord coarse grained concrete Conference on Offshore crack tip CTOD tests CTOD values curves defect dislocations effect energy fabrication ferrite fiber Figure finite element fracture mechanics fracture toughness fusion line grain coarsened HAZ HAZ toughness heat affected zone heat input hydrogen cracking ICCGHAZ impact increase intercritically kJ/mm layup loading low carbon martensite maximum mechanical properties Mechanics and Arctic mid-thickness niobium notch Offshore Mechanics offshore structures Oseberg parameters plastic post weld heat preheat pressure PWHT regions residual stresses sampled solidification cracking specification specimens steel plates stiffeners strain stress concentration stress intensity factor submerged arc welding surface Table temperature tensile test results TMCP transverse tubular joints weld heat treatment weld metal weld toe weldability welded joints welding procedures weldment yield strength