Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 14, Part 3American Society of Mechanical Engineers, 1995 - Arctic regions |
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Page 36
Curve Mean life / Predicted Predicted Design life design life / mean life / Mean life / Design life ratio T design life Curve T mean life Design life Predicted / Predicted / Measured 3.8 0.57 0.74 0.76P curve 1.14P curve Efthymiou 4.47 ...
Curve Mean life / Predicted Predicted Design life design life / mean life / Mean life / Design life ratio T design life Curve T mean life Design life Predicted / Predicted / Measured 3.8 0.57 0.74 0.76P curve 1.14P curve Efthymiou 4.47 ...
Page 108
... Mean = 1.018 COV = 0.088 N = 28 ............... Mean = 1.553 COV = 0.178 N = 12 ( b ) UC - DENT 1.5- 0.5- 1.5 . ( c ) M - P- 08 Mean = 1.027 COV = 0.120 N = 34 ( d ) Loh U.C. 0.5- Mean = 1.08 COV = 0.123 N = 156 0 0.1 0.2 0.3 0.1 0.2 ...
... Mean = 1.018 COV = 0.088 N = 28 ............... Mean = 1.553 COV = 0.178 N = 12 ( b ) UC - DENT 1.5- 0.5- 1.5 . ( c ) M - P- 08 Mean = 1.027 COV = 0.120 N = 34 ( d ) Loh U.C. 0.5- Mean = 1.08 COV = 0.123 N = 156 0 0.1 0.2 0.3 0.1 0.2 ...
Page 186
... Mean Cov % below lower bound Mean Paul ( 1992 ) Fy = Oy 1.085 0.110 23.8 Characteristic Paul ( 1992 ) Fy = min [ o ,, 0.80 ] 1.289 0.205 13.7 Mean entire Fy = oy - All joints 1.014 0.202 47.3 Fy = Oy - y < 25 0.975 0.184 59.4 ...
... Mean Cov % below lower bound Mean Paul ( 1992 ) Fy = Oy 1.085 0.110 23.8 Characteristic Paul ( 1992 ) Fy = min [ o ,, 0.80 ] 1.289 0.205 13.7 Mean entire Fy = oy - All joints 1.014 0.202 47.3 Fy = Oy - y < 25 0.975 0.184 59.4 ...
Contents
FATIGUE GUIDANCE FOR OFFSHORE STRUCTURES | 1 |
VOLUME IA OFFSHORE TECHNOLOGY VOLUME IIIMATERIALS ENGINEERING | 18 |
STRUCTURAL INTEGRITY METHODS FOR WELDED COMPONENTS | 55 |
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analysis applied assessment axial behaviour bending brace calculated cathodic protection Charpy chord crack depth crack growth rate crack initiation crack propagation crack tip CTOD cycles defect deformation developed ductility effect Efthymiou equations evaluation experimental failure fatigue crack growth fatigue guidance fatigue lives fatigue strength fatigue tests Figure finite element finite element analysis fracture mechanics fracture toughness GCHAZ geometry hammer peening high strength steels hydrogen increase Laser welds load material measured method microstructure mismatch mixed mode multiplanar normalised notch obtained offshore structures parameters parametric equations parent plate peening pipe plate thickness predictions procedure ratio region repair residual stress ring-stiffened joints S-N curve sea water seawater shielding gas shown in Fig strain stress concentration stress concentration factor stress intensity factor stress range surface cracks Table tensile TMCP tubular joints tested undermatched values weld metal weld toe welded joints weldment yield strength