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 53
... cycle and could degrade markedly with either faster or slower cycles than the optimum . On the other hand , the as - received materials having originally poor toughness in the T orientation were relatively insensitive to thermal cycle ...
... cycle and could degrade markedly with either faster or slower cycles than the optimum . On the other hand , the as - received materials having originally poor toughness in the T orientation were relatively insensitive to thermal cycle ...
Page 55
... cycle 2 , which appears to be optimum . Overall , the effect of varying thermal cycles can be summarised by an initial improvement in toughness from cycle 1 to an optimum with cycle 2 and a subsequent degradation with the slower cycles ...
... cycle 2 , which appears to be optimum . Overall , the effect of varying thermal cycles can be summarised by an initial improvement in toughness from cycle 1 to an optimum with cycle 2 and a subsequent degradation with the slower cycles ...
Page 252
... cycles at which point the maximum saddle crack depth was 5.6mm . The specimen was then loaded in in- plane - bending ( test IPB - 1A ) . The hot spot stress range was 224 MPa and R was -1 . Loading was discontinued after 240,000 cycles ...
... cycles at which point the maximum saddle crack depth was 5.6mm . The specimen was then loaded in in- plane - bending ( test IPB - 1A ) . The hot spot stress range was 224 MPa and R was -1 . Loading was discontinued after 240,000 cycles ...
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