Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2American Society of Mechanical Engineers, 2001 - Arctic regions |
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Page 278
... detection curve . The qualitative nature of the POSsibility of Detection ( POSD ) curves is shown in Fig . 3. The possibility of detection should be aimed at 95-98 % [ 2 ] This information will provide the critical crack length for the ...
... detection curve . The qualitative nature of the POSsibility of Detection ( POSD ) curves is shown in Fig . 3. The possibility of detection should be aimed at 95-98 % [ 2 ] This information will provide the critical crack length for the ...
Page 437
... detecting the crack and quantifying its size . In principle each detection technique will have a limit size of detection ( ad , o ) , under which cracks will not be identified ( Packman et al . , 1969 ) : P1 ( a ) = ( 12 ) where αL and ...
... detecting the crack and quantifying its size . In principle each detection technique will have a limit size of detection ( ad , o ) , under which cracks will not be identified ( Packman et al . , 1969 ) : P1 ( a ) = ( 12 ) where αL and ...
Page 439
... detection is described by an Exponential distribution , where the parameter a is a mean value ( see Eqn ( 16 ) ... detection , of detection and of failure . The likelihood function L , for the entire system of structural components is then ...
... detection is described by an Exponential distribution , where the parameter a is a mean value ( see Eqn ( 16 ) ... detection , of detection and of failure . The likelihood function L , for the entire system of structural components is then ...
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amplitude applied approach Arctic Engineering assessment Bay of Campeche calculated coefficient components Conference on Offshore considered corrosion cost crack growth criteria damage deck defect distribution dynamic effect element equation estimate evaluated evidential reasoning approach factor fatigue Figure FPSO frequency function fuzzy given Guedes Soares hydrostatic test inspection planning installation jack-up linear maintenance marine maximum Mechanics and Arctic method monopod nonlinear North West Shelf obtained Offshore Mechanics offshore structures operations optimal parameters peak pipe pipeline prediction probabilistic probability density probability density function probability of failure procedure random variables reliability analysis reliability index response return period Rio de Janeiro riser risk risk based inspection safety seismic ship significant wave height simulation spectral spectrum statistical steel storm stress structural reliability subsea surface Table temperature theory ultimate strength uncertainty valves velocity water depth Weibull distribution wind