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 51
... variables , α , s This O and for resistance related variables a≥ 0 . is the basic parameter required to derive partial safety factors . The partial safety factor format has been developed to treat uncertainties in different variables ...
... variables , α , s This O and for resistance related variables a≥ 0 . is the basic parameter required to derive partial safety factors . The partial safety factor format has been developed to treat uncertainties in different variables ...
Page 52
... variables X , with small sensitivity coefficients should be represented by their mean values ( e.g. pipe dimensions , material properties ) and those with large sensitivity factors by their characteristic values ( e.g. fracture ...
... variables X , with small sensitivity coefficients should be represented by their mean values ( e.g. pipe dimensions , material properties ) and those with large sensitivity factors by their characteristic values ( e.g. fracture ...
Page 131
... variables is found by varying one parameter at a time while holding all others fixed at the base case value . Table 2 summari- zes the simulation matrix and gives the mean value , Hy , and the COV , of displacement response . Table 2 ...
... variables is found by varying one parameter at a time while holding all others fixed at the base case value . Table 2 summari- zes the simulation matrix and gives the mean value , Hy , and the COV , of displacement response . Table 2 ...
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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