Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 5American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 15
... strain curves were measured . The interpass time was 10 seconds and the strain rate 10 sec - 1 . The flow stress of 1 % copper - bearing steel was larger than that of copper - free steel . However , after the three reductions , it ...
... strain curves were measured . The interpass time was 10 seconds and the strain rate 10 sec - 1 . The flow stress of 1 % copper - bearing steel was larger than that of copper - free steel . However , after the three reductions , it ...
Page 43
... Strain Zero Axial Force 103 0.01 0.02 0.03 0.04 AD . Dmes / Do 0.5 × 103 Fig . 6 Bifurcation pressures for various Do / t values for axially restrained tubes . X - 52 /E=1.51x10-3 n = 12 80- Plane Strain PD 21 ( ksi ) - 60- 40- 20 20 X ...
... Strain Zero Axial Force 103 0.01 0.02 0.03 0.04 AD . Dmes / Do 0.5 × 103 Fig . 6 Bifurcation pressures for various Do / t values for axially restrained tubes . X - 52 /E=1.51x10-3 n = 12 80- Plane Strain PD 21 ( ksi ) - 60- 40- 20 20 X ...
Page 100
... strain variation and are used in the equilibrium equation . Associated with the layer deformations are normal stresses and strains in the longitudinal , circumferential and radial directions in addition to a shear stress and strain ...
... strain variation and are used in the equilibrium equation . Associated with the layer deformations are normal stresses and strains in the longitudinal , circumferential and radial directions in addition to a shear stress and strain ...
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addition analysis applied approach assessment assumed bending calculations caused considered CONTINUE corrosion crack damage deformation depth described diameter direction displacement distribution effect energy Engineering ensemble equations factors failure field Figure flow force fracture function given hole included increase initial installation internal layer length limit load material maximum mean measured mechanical method mode movement obtained occurred Offshore operation parameters pipe pipeline plastic plate platform position predicted presented pressure probability problem procedure properties radial range reduced relative reliability resistance response safety scaling scour seabed shown shows simulated soil solution span stability steel strain strength stress structure subsea surface Table term thickness toughness tracers tube uncertainty values valve variables wall wave weight weld