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 178
... Assessment For the cracked offshore structures that are servicing in ocean environment , the fracture safety assessment on them is very necessary . A fitness - for - propose approach is generally applied in the assessment . The cracked ...
... Assessment For the cracked offshore structures that are servicing in ocean environment , the fracture safety assessment on them is very necessary . A fitness - for - propose approach is generally applied in the assessment . The cracked ...
Page 248
... assessment method is shown to give very conservative predictions for applied CTOD . The main reason for the apparent over - conservatism is the assumption of plane stress at the crack tip . The remainder of this discussion is based on ...
... assessment method is shown to give very conservative predictions for applied CTOD . The main reason for the apparent over - conservatism is the assumption of plane stress at the crack tip . The remainder of this discussion is based on ...
Page 249
... assessment method ( CTOD design curve ) proved to be over - conservative , predicting fracture in all the cases . Level III assessment assuming plane strain at the crack tip would predict failure in weld metal , non - failure in parent ...
... assessment method ( CTOD design curve ) proved to be over - conservative , predicting fracture in all the cases . Level III assessment assuming plane strain at the crack tip would predict failure in weld metal , non - failure in parent ...
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