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 71
CTOD ( Effective ) , mm 03 2758 50mm 355 B 50 mm 25 mm 02 255 C EM ? 01 - 01 02 03 04 0.5 0.6 07 0.8 NORMALISED STRESS 09 1 11 12 CTOD , mm 2.8 2.4 450 EMZ CTOD 2 meas CTOD off 1.6 UYS CTOD eff 1.2 LYS 0.8 0.4 T CTOD on ave UBL YS 1 01 ...
CTOD ( Effective ) , mm 03 2758 50mm 355 B 50 mm 25 mm 02 255 C EM ? 01 - 01 02 03 04 0.5 0.6 07 0.8 NORMALISED STRESS 09 1 11 12 CTOD , mm 2.8 2.4 450 EMZ CTOD 2 meas CTOD off 1.6 UYS CTOD eff 1.2 LYS 0.8 0.4 T CTOD on ave UBL YS 1 01 ...
Page 94
... CTOD values . Using these empirical correlations , the required CTOD and CVN toughness levels for pipe metal yielding were deduced . Wide plate test performance criterion The non - dimensional wide plate failure stresses ( expressed as ...
... CTOD values . Using these empirical correlations , the required CTOD and CVN toughness levels for pipe metal yielding were deduced . Wide plate test performance criterion The non - dimensional wide plate failure stresses ( expressed as ...
Page 95
... CTOD ( % ) Depth Length ( mm ) ( mm ) ( mm ) Weld metal matching ( % ) 0.51 4.2 27 7 0.46 -6 0.56 5.0 40 9 0.07 +24 0.58 3.6 24 3 0.26 -6 0.06 2.5 47 19 0.28 -3 0.63 3.9 45 40 -7 0.65 4.2 27 19 0.28 -3 0.68 3.0 49 3 0.32 -6 0.73 4.3 48 ...
... CTOD ( % ) Depth Length ( mm ) ( mm ) ( mm ) Weld metal matching ( % ) 0.51 4.2 27 7 0.46 -6 0.56 5.0 40 9 0.07 +24 0.58 3.6 24 3 0.26 -6 0.06 2.5 47 19 0.28 -3 0.63 3.9 45 40 -7 0.65 4.2 27 19 0.28 -3 0.68 3.0 49 3 0.32 -6 0.73 4.3 48 ...
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