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 35
... limit load instability soon after bifurcation . For thicker pipes , the bifurcation occurs in the plastic range and is followed again by a limit load instability ( see Fig . 1a ) . In a pressure control en- vironment , like the sea ...
... limit load instability soon after bifurcation . For thicker pipes , the bifurcation occurs in the plastic range and is followed again by a limit load instability ( see Fig . 1a ) . In a pressure control en- vironment , like the sea ...
Page 39
... limit load instabilities . For lower values of pressure the bifurcation in- stabilities precede the limit loads and are seen to be in good agreement with the experimental results . Clearly for this geom- etry and material the limit load ...
... limit load instabilities . For lower values of pressure the bifurcation in- stabilities precede the limit loads and are seen to be in good agreement with the experimental results . Clearly for this geom- etry and material the limit load ...
Page 150
... limit . This question has been addressed in [ 4,22 ] . Based on experience obtained from a large number simulations , it was found that for a pipe weight designed on the basis of an extreme event with a reasonably small displacement limit ...
... limit . This question has been addressed in [ 4,22 ] . Based on experience obtained from a large number simulations , it was found that for a pipe weight designed on the basis of an extreme event with a reasonably small displacement limit ...
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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