Stabilization of dispersion of characteristics of fatigue properties of constructional materials at the statistical analysis of results of fatigue tests

Аuthors

Agamirov V. L.^1*, Agamirov L. V.^2**, Vestyak V. A.^3***

1. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
2. Russian State Technological University named after K.E. Tsiolkovsky, MATI, 3, Orshanskaya str., Moscow, 121552, Russia
3. ,

*e-mail: avl095@mail.ru
**e-mail: mmk@mati.ru
***e-mail: kaf311@mai.ru

Abstract

The method of transformation the durability to destruction deals with the statistic analysis of the fatigue tests. This method stabilizes the features of the fatigue properties dispersion in connection with durability variation. It is especially actual in the process of extrapolation to the area of the long durability and the reasoning of the trusted areas for durability and for the limits of fatigue resistance.The method of the invariant statistic analysis enables to increase the accuracy of the definition of the tested characteristics and the limit of fatigue resistance. The amount of fatigue tests can be reduced as good as the total duration and cost cuts down, hence the efficiency of all the life-cycle stages of aviation products of rocket and space technology will increase.

Keywords:

fatigue tests, statistic analysis, constructional materials, aviation production, durability, reliability, resource.