1987 Volume 53 Issue 491 Pages 1397-1401
In the low-cycle fatigue design based on testing of geometrically similar models, the scatter of fatigue life is taken into account using the factor for the statistical variation in test results, Kss = 1.470 - 0.044γ, the formula given by the ASME Boiler and Pressure Vessel Code, where γ is the umber of replicate tests. In the present paper, this formula has been examined by calculating the upper confidence limit of the probability of failure PfU for the design service cycles as determined using the above formula. It was found that PfU varied with η and γ, where ηwas the coefficient of variation of the fatigue life. An alternative formula was proposed which made PfU independent of η and γ.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Transactions of the Japan Society of Mechanical Engineers Series C
Transactions of the Japan Society of Mechanical Engineers Series B
