Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 13, Parts 3-5American Society of Mechanical Engineers, 1994 - Arctic regions |
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Page 3
... mean stress and stress range on the fatigue life of drillpipe in air and in a corrosive environment . Table 1 presents a summary of the number of test specimens and the stress levels used in the test program . Because the presence of ...
... mean stress and stress range on the fatigue life of drillpipe in air and in a corrosive environment . Table 1 presents a summary of the number of test specimens and the stress levels used in the test program . Because the presence of ...
Page 4
... mean stress ( taken as the sum of the residual stresses and the applied stress ) is later found to affect the fatigue life . In a corrosive environment the effect of surface residual stresses would be reduced since the corrosive test ...
... mean stress ( taken as the sum of the residual stresses and the applied stress ) is later found to affect the fatigue life . In a corrosive environment the effect of surface residual stresses would be reduced since the corrosive test ...
Page 217
... mean curves for the two environments are close to each other with the air curve giving the longest fatigue lives . This figure also shows the mean F curve adjusted to 30 mm plate thickness and a mean curve for CA data in air as reported ...
... mean curves for the two environments are close to each other with the air curve giving the longest fatigue lives . This figure also shows the mean F curve adjusted to 30 mm plate thickness and a mean curve for CA data in air as reported ...
Contents
FATIGUE AND DEFORMATION | 1 |
FRACTURE ASSESSMENT AND ANALYSIS | 37 |
FATIGUE DESIGN AND DETECTION | 73 |
Copyright | |
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analysis angle applied ASME assessment axial behaviour bending calculated cathodic protection corrosion crack growth rate crack propagation crack tip CTOD cycles deformation developed diameter displacement drillpipe dynamic elastic equation experimental factor failure fatigue crack growth fatigue strength ferrite finite element fracture mechanics fracture toughness free span geometry heat hoop stress hydrogen Ice Class increase initial installation J-Lay length limit load material maximum mbar method microstructure modulus nitrogen notch obtained offshore structures OMAE operating parameters pipe pipeline plastic Poisson's ratio predicted pressure ratio repair residual stress S-N curve scour sea ice sea water shielding gas simulated soil sour crude oil specimens steel strain rate stress intensity stress range surface Table Technology temperature tensile tubular joints values wall thickness water depth weld deposit weld metal weld toe weldment size effect wire yield strength Young's modulus