Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 3; Volume 8, Part 3American Society of Mechanical Engineers, 1989 - Arctic regions |
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Page 382
20 0.40 Through - thickness ereck depths 0.00 0.00 1.00 MILLION OF CYCLES Saddio Het spot ) Fig ... Normalized otress 10 00 06 04 02 00 00 02 04 06 09 10 He -99 % -90 % 1 bulten Noooo ) Normalized crack depth 0966 -3960 -3930 -3010 .265 ...
20 0.40 Through - thickness ereck depths 0.00 0.00 1.00 MILLION OF CYCLES Saddio Het spot ) Fig ... Normalized otress 10 00 06 04 02 00 00 02 04 06 09 10 He -99 % -90 % 1 bulten Noooo ) Normalized crack depth 0966 -3960 -3930 -3010 .265 ...
Page 441
CRACK DEPTH ( a / T ) 0.2 0.4 0.6 0.8 CRACK DEPTH ( O / T ) 0.2 0.4 0.6 0.8 0.0 0.25 LO 0.0 0.60 1.0 + 0.20 • PPI AIR o PP3 SEA / FC APP 5 SEA / CP + PP7 SEA / OP 1 PP2 AIR o PP4 SEA / FC A PP6 SEA / CP + PP8 SEA / OP 0.50 0.15 0.400 O ...
CRACK DEPTH ( a / T ) 0.2 0.4 0.6 0.8 CRACK DEPTH ( O / T ) 0.2 0.4 0.6 0.8 0.0 0.25 LO 0.0 0.60 1.0 + 0.20 • PPI AIR o PP3 SEA / FC APP 5 SEA / CP + PP7 SEA / OP 1 PP2 AIR o PP4 SEA / FC A PP6 SEA / CP + PP8 SEA / OP 0.50 0.15 0.400 O ...
Page 730
I I I I I I I J-J 0 4 8 12 16 20 24 CRACK DEPTH, mm CRACKS MOST LIKELY TO CAUSE FAILURE Figure 7 . Prior Estimates of Crack Growth and the Most Probable Cause of Failure Before the End of the Planned Service Life hand side of Figure 7 ...
I I I I I I I J-J 0 4 8 12 16 20 24 CRACK DEPTH, mm CRACKS MOST LIKELY TO CAUSE FAILURE Figure 7 . Prior Estimates of Crack Growth and the Most Probable Cause of Failure Before the End of the Planned Service Life hand side of Figure 7 ...
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Contents
THICKNESS EFFECTS | 1 |
The Plate Thickness Effect in Fatigue Predictions and Results A Review of Norwegian Work | 21 |
Thickness Weld Profile and Initial Flaw Considerations for Tubular Joints | 39 |
Copyright | |
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alloy analysis applied base behaviour bending calculated carried compared composition concrete Conference constant corrosion crack growth CTOD curve cycles defect depth determined developed distribution effect element energy Engineering equation experimental fabrication factor failure fatigue crack Figure fracture function geometry given grade grain heat higher improved increase indicated influence initiation input inspection International length limited load lower material mean measured mechanical method microstructure normal notch observed obtained occur Offshore parameters performed pipe plate potential predicted present procedure production properties protection range ratio reduced region Research shown shows specimens standard steel strain strength stress stress intensity factor stress range structure surface Table temperature tensile thickness toughness tubular joints values weld metal weld toe welded joints wide plate yield strength