... Process A pure statistical approach was not appropriate to develop a design curve given the nature of the data set in the case of this project. Typical fatigue data is generated by testing three separate stress amplitude values with equal number of tests at each stress amplitude. Each stress amplitude...

..., the principal stress will be determined using the full ship FE analysis with the design loads obtained from the CFD simulations. For the strength assessment, the principal stress amplitudes at the probability levels of 10-8 will be calculated. For the simplified fatigue assessment, the Table 1 Design waves...

... += Static von Mises Stress: The stresses are combined using the von Mises criterion. 2 222 hrrbectbecth VM = Dynamic Stress Calculation Dynamic stresses include variations due tension, bending and frictional stresses. Dynamic Axial Stress Amplitude Due to Tension: j j At A T The dynamic tension...

... top end vibration stress amplitude deep sea riser upstream oil & gas future deep sea riser design amplitude transducer fatigue stress quay riser tension fluctuation axial resonance transverse vibration axial vibration test setup model testing OTC 8701 LARGE SCALE MODEL TESTING...

... formula stress amplitude fatigue life contact pressure coefficient pipe fatigue limit reinforcement layer fatigue property reinforcement strips frictional force upstream oil & gas pressure reinforcement layer flexible pipe curvature change tensile reinforcement layer...

... and dynamic behaviour of the 6,000 m riser system – the comparison procedure of different riser set ups – material, coating endurance, added mass and drag force coefficient test riser time step riser 2 excitation amplitude stress amplitude rda axial stress vibration pipe upper end...

.... This equivalent stress parameter has been extended to fracture mechanics analysis in terms of an effective stress intensity and to fatigue life estimation. offshore structure condition applicable fatigue data loading history stress amplitude stress concept equivalent stress spectrum fatigue data...

... stress amplitude cable design fatigue strength steel wire sheath pipeline corrosion subsea system zinc anode subsurface corrosion corrosion management seawater steel upstream oil & gas resistance riser corrosion OTC 4052 SELF-PROTECTED, LONG-LIFE DEEP SEA MOORING CABLE by Bernard...

... position crack length monte carlo technique stress amplitude simulation crack growth loading fatigue life plane tubular joint sequence calculation artificial intelligence hydraulic fracturing cycle analysis OTC 3698 FATIGUE ANALYSIS OF ATUBULAR JOINT BROKEN UNDER WAVES AND CURRENTS...

... on the previous observations it seems reasonable for design purposes to impose for the cumulative value ~(n/N) a lower bound value of 0.6. For several predetermined ratios of the nom- inal maximum stress amplitude in the horizontal branch"(crmax) to the specified allowable stress(cra),cumulative damage values ~(n...