Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 11, Part 3American Society of Mechanical Engineers, 1992 - Arctic regions |
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Page 555
... SEA - WATER ( FC ) /R=0.80 Air O Sea Water 46900 10 STRESS INTENSITY FACTOR RANGE , MPa√m Fig . 17 Fatigue crack growth rates for EH36 in air and seawater at R - 0.8 . Fatigue Crack Growth Rate , mm / cycle 10 -2 10-3 10 O 10 10 R ...
... SEA - WATER ( FC ) /R=0.80 Air O Sea Water 46900 10 STRESS INTENSITY FACTOR RANGE , MPa√m Fig . 17 Fatigue crack growth rates for EH36 in air and seawater at R - 0.8 . Fatigue Crack Growth Rate , mm / cycle 10 -2 10-3 10 O 10 10 R ...
Page 574
... Seawater 0+ 0.0 0.5 1.0 1.5 2.0 a ( t ) ( mm ) Figure 20 : Schematic representation of FCGR - AK trend . Figure 21. Transition AK vs. transition crack length for five steels . Table 7. Initial and transition test data in seawater . 1000 ...
... Seawater 0+ 0.0 0.5 1.0 1.5 2.0 a ( t ) ( mm ) Figure 20 : Schematic representation of FCGR - AK trend . Figure 21. Transition AK vs. transition crack length for five steels . Table 7. Initial and transition test data in seawater . 1000 ...
Page 578
... seawater be reduced by a factor of two for all lives . This is illustrated in Figure 2 , where design curves for 26 mm thick tubular joints in air and seawater environments are shown . Like the DOE guidelines , the life is reduced by a ...
... seawater be reduced by a factor of two for all lives . This is illustrated in Figure 2 , where design curves for 26 mm thick tubular joints in air and seawater environments are shown . Like the DOE guidelines , the life is reduced by a ...
Contents
WELD METAL AND HAZ PROPERTIES | 1 |
ADVANCES IN STEEL AND WELDING | 65 |
Development of HSLA Steel With 80Ksi Yield Strength for Offshore Tubular Applications | 73 |
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amplitude analysis applied assessment austenite axial load base metal behaviour bending bolt bolted joint brace brittle calculated CGHAZ chord composite compression crack depth crack front CTOD curve defects delamination diameter duplex effect elastic elastomer energy equations experimental failure fatigue crack growth fatigue tests ferrite finite element flexelement fracture mechanics fracture toughness fume Geesthacht geometry grain heat affected zone heat input HNBR HSLA Steels hydrogen hyperbaric increase interaction laminate layer metal yield strength method microstructure nitrogen notch obtained Offshore Structures OMAE parameters pipe plastic predictions preferential corrosion pressure procedure properties ratio region shear Shielding gas shown in Figure specimens stainless steels strain stress concentration stress intensity factors stress range surface crack T-joint Table temperature tensile strength tension thermal cycle thickness thread tubes tubular joints underwater values weld toe welded joints weldment wire yield strength zone