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
... factor and the αi reliability index : Xi [ 9 ] In general , for load related 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 ...
... factor and the αi reliability index : Xi [ 9 ] In general , for load related 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 ...
Page 52
... factors as : Y1 SE - Ya < 0 [ 17 ] Y4 is the partial safety factor for CTOD , With regard to statistical data for the main variables in Eqn . [ 17 ] , the applied stress and the residual stress are generally taken to be normally ...
... factors as : Y1 SE - Ya < 0 [ 17 ] Y4 is the partial safety factor for CTOD , With regard to statistical data for the main variables in Eqn . [ 17 ] , the applied stress and the residual stress are generally taken to be normally ...
Page 132
... factors , and in addi- tion by the fact that an increase of the COV of the scaling factors by a factor of 3 gave no significant effect on P. Application of a lognormal distribution for the scaling factors similarly gave a negligible ...
... factors , and in addi- tion by the fact that an increase of the COV of the scaling factors by a factor of 3 gave no significant effect on P. Application of a lognormal distribution for the scaling factors similarly gave a negligible ...
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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