This article deals with the problem of residual life estimation. Fatigue test results of different metals and alloys under variable amplitude with two blocks cycles are represented. The results are showing that there are no any dependence... more
This article deals with the problem of residual life estimation. Fatigue test results of different metals and alloys under variable amplitude with two blocks cycles are represented. The results are showing that there are no any dependence with significant coefficient of determination between prior cyclic loading and residual durability. It is shown that test results can be represented in the form of a prior cyclic loading – residual durability correlation field with high dispersion that could be explained by high and low frequency process. This effect is considered within the bounds of synergetic discretely-likelihood fatigue model. According to correlation field structure feature it was offered to use for residual durability calculation the points of correlation field envelope low part as fiducial line. Introduction Any aircraft structure designing demands of two conflicting objectives solution: cost efficiency and operational safety providing. Cost efficiency is formed by aircraft...
