Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 3American Society of Mechanical Engineers, 2001 - Arctic regions |
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Page 88
Virgin steel ( SM490YB ) Nominal strain , Eave . ( Ao - A ) / A ( % ) ( a ) Nominal stress - nominal strain curve . ( b ) Load displacement of crosshead Center of specimen ( c ) Micrographs of the sectioned specimens near the center of ...
Virgin steel ( SM490YB ) Nominal strain , Eave . ( Ao - A ) / A ( % ) ( a ) Nominal stress - nominal strain curve . ( b ) Load displacement of crosshead Center of specimen ( c ) Micrographs of the sectioned specimens near the center of ...
Page 91
2000 Virgin steel ( SM490YB ) Smooth bar 1500 True stress , s = P / A ( MPa ) 1000 S2 = P / A ( Experiment ) 500 P max S = 5 / ( 1 + a / 4R ) a : Net radius R : Radius of curvature Stress triaxiality , omō 1.4 1.0 1.2 Virgin steel ...
2000 Virgin steel ( SM490YB ) Smooth bar 1500 True stress , s = P / A ( MPa ) 1000 S2 = P / A ( Experiment ) 500 P max S = 5 / ( 1 + a / 4R ) a : Net radius R : Radius of curvature Stress triaxiality , omō 1.4 1.0 1.2 Virgin steel ...
Page 92
... virgin steel . Equivalent stress , ō ( MPa ) 800 700- Virgin. and coalescence of micro - voids ( secondary voids ) would play an important role to nucleate the ductile crack as well as that for virgin steel . Then , on the basis of these ...
... virgin steel . Equivalent stress , ō ( MPa ) 800 700- Virgin. and coalescence of micro - voids ( secondary voids ) would play an important role to nucleate the ductile crack as well as that for virgin steel . Then , on the basis of these ...
Contents
Fatigue Capacity | 1 |
OMAE2001MAT3011 | 11 |
OMAE2001MAT3013 | 17 |
Copyright | |
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analysis applied Arctic Engineering assessment axial base metal bending brittle buckling calculated CGHAZ Charpy impact Charpy impact test components compressive Conference on Offshore crack arrest crack growth criterion CTOD test cycle defined deformation developed discrete displacement distribution DQEM ductile crack initiation dynamic effect elastic equation evaluated failure fatigue cracks ferrite Figure finite element flexible pipe FPSO Fracture Mechanics fracture toughness function fusion line hot spot hull indentation linepipe loading material maximum mechanical properties Mechanics and Arctic method microstructure node notch obtained Offshore Mechanics offshore structures parameters performed pipeline predicted pressure region Rio de Janeiro riser S-N curves shown in Fig shows simulated specimens steel plates stress concentration stress intensity factor surface cracks surface layer Table temperature tensile strength thermal thickness underwater underwater welding virgin steel Weibull distribution weld metal weld toe welded joints weldment yield strength