In high cycle fatigue, the stress amplitude is close to the fatigue limit
, so the term of ([DELTA][[sigma].
The sharp boundaries of primary type I graphite nucleated in pearlitic matrix drastically reduces the notch toughness of material and prematurely failed against safe life stress based design philosophy under fatigue limit
Estimating expected information gains for experimental designs with application to the random fatigue limit
The specimen had reached its fatigue limit
in this load phase.
is the main parameter used to calculate the EIFS.
The stress curve or fatigue limit
is found by repeating millions of loading/unloading events on a sample to generate a stress curve of calculated cycles-to-failure.
However, it was also found that for both welded and unwelded PA6GF, the maximum fatigue limit
stress was ~45% of the tensile strength regardless of the temperature.
The result of processing fatigue test dataset using models of fatigue curve with random fatigue limit
is presented in paper (Pascual, Meeker 1999).
The staircase method was used to obtain accurate values of the fatigue limit
stress for base metal and for welded metallic alloys corresponding to the fixed number of cycle.
According to (Shigley & Mitchel, 1983) the correction factors of fatigue limit
Among the topics are multi-functional composite fatigue, developing a benchmark example for predicting delamination fatigue growth, modeling fatigue damage in long-fiber thermoplastics, assessing fatigue limit
predictors of graphite/epoxy co-cured composite joints through quasi-static acoustic emission count peaks, and stiffness and fatigue behavior of composite elliptic springs.
Being different from common met al material, FRP material has no obvious fatigue limit