Abstract: A new, more actual approach
for omitting small loads in a loading history was presented
according to crack closure, and load interactive effects which
are large on damage of components were studied. Intrinsic
periodic spectrum block representing a damage element of a load
history, a new concept, was put out. It has been proven by
theoretic analysis and tests that the modes of constructing
fatigue loading spectrum have little effect on damage of
components, which will change the incomplete knowledge on
constructing fatigue spectrum ago.
Key words:
Fatigue loading spectrum Damage Crack closure
* This project is supported by National Educational Committee and
Scientific and Technologic Committee of Liaoning Province of China. Manuscript received on March 1, 1994
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