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 332
4 ANALYSIS OF FATIGUE CRACK GROWTH The fatigue strength of welded joints is much lower than their base metals due to the creation of geometric stress concentrations , weld defects , microscopic metallurgical changes and residual ...
4 ANALYSIS OF FATIGUE CRACK GROWTH The fatigue strength of welded joints is much lower than their base metals due to the creation of geometric stress concentrations , weld defects , microscopic metallurgical changes and residual ...
Page 334
... crack growth ( prediction vs. experiment ) 0.80 0.79 8.60 0.50 0.40 6.30 0.20 0.10 0.00 0.00 Argan 8.00 12.00 16.00 Crack depth amm ) Fig . 12 Changes of aspect ratio due to crack propagation 6 CONCLUSIONS In this study , fatigue test and ...
... crack growth ( prediction vs. experiment ) 0.80 0.79 8.60 0.50 0.40 6.30 0.20 0.10 0.00 0.00 Argan 8.00 12.00 16.00 Crack depth amm ) Fig . 12 Changes of aspect ratio due to crack propagation 6 CONCLUSIONS In this study , fatigue test and ...
Page 384
... crack growth through the pressure barrier which in turn lead to leakage . The crack mechanism which have been experienced in the SINTEF testing have not so far been seen in risers in operation . The orientation of the crack plane ...
... crack growth through the pressure barrier which in turn lead to leakage . The crack mechanism which have been experienced in the SINTEF testing have not so far been seen in risers in operation . The orientation of the crack plane ...
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