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 129
... range Am Then , the nominal stress range Aoom was calculated from Ao . = Aεom x E , where E Young's modulus ( assumed to be DOW BOM DOW 207,000N / mm3 ) . HS = The strain gauges on the chord were used to determine the hot spot stress range ...
... range Am Then , the nominal stress range Aoom was calculated from Ao . = Aεom x E , where E Young's modulus ( assumed to be DOW BOM DOW 207,000N / mm3 ) . HS = The strain gauges on the chord were used to determine the hot spot stress range ...
Page 134
... range , N / mm2 450 400 350 300 250 Calculated hot spot stress range , N / mm2 120 10 200 150 2 ៖ ៖ ៖ ៖ ៖ T △ Type A ( Normal ) Type B ( Poor ) Type C ( AWS improved ) Type D ( Peaky ) Type E ( Type D ground to meet AWS ) Type F ...
... range , N / mm2 450 400 350 300 250 Calculated hot spot stress range , N / mm2 120 10 200 150 2 ៖ ៖ ៖ ៖ ៖ T △ Type A ( Normal ) Type B ( Poor ) Type C ( AWS improved ) Type D ( Peaky ) Type E ( Type D ground to meet AWS ) Type F ...
Page 136
Crack tim Saad p 1 FIG . 200 Growth rate mm / cycle Stress range. Aop - Aog ( 1 - alT ) [ 1 ] where : Ao is the bending stress component of the hot spot stress range at crack depth a , Ao is the bending stress range in the absence of the ...
Crack tim Saad p 1 FIG . 200 Growth rate mm / cycle Stress range. Aop - Aog ( 1 - alT ) [ 1 ] where : Ao is the bending stress component of the hot spot stress range at crack depth a , Ao is the bending stress range in the absence of the ...
Contents
FATIGUE GUIDANCE FOR OFFSHORE STRUCTURES | 1 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 14 |
STRUCTURAL INTEGRITY METHODS FOR WELDED COMPONENTS | 55 |
Copyright | |
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analysis applied assessment austenitic axial behaviour bending brace calculated cathodic protection Charpy chord Corrosion Fatigue crack depth crack front crack growth rate crack propagation crack tip CTOD cycles defect deformation developed 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 notch offshore structures parameters parametric equations parent plate peening pipe plate thickness predictions Proc procedure region repair residual stress ring-stiffened joints riser S-N curve sea water seawater shown in Fig strain stress concentration stress concentration factor stress intensity factor stress range surface cracks Table tensile test results titanium TMCP tubular joints tested values weld metal weld toe welded joints weldment yield strength