Abstract: The fuzzy sets theory is introduced into the fatigue reliability analysis. The concepts of maximizing set and minimizing set are
developed to decide the ordering value of each fuzzy number, and
these values can be used to determine the order of the fuzzy
number. On the basis of the works mentioned above, the membership
function defining the fuzzy safety event can be calculated, and
then the fuzzy reliability in the case of random stress and fuzzy
fatigue strength is deduced. An example is given to illustrate
the method.
Key words: Maximizing
set Minimizing set Total utility value Fatigue strength Fuzzy
reliability
*
This project
is supported by National Natural Science Foundation of China. Manuscript received on
July 8, 1999; revised manuscript November 22, 1999
|