Abstract
In the development of objects of new technology in which increased requirements are imposed for reliability during the course of a long service time, it is necessary to have data available on the fatigue resistance of constructional materials to long cyclic loading bases (billlons of cycles and more). The obtaining of such data on normal test equipment involves large expenditures of time. For example, in order to complete i0 ~ cycles on equipment with an operating frequency of 20 Hz, 1.5 yrs are required. Therefore, fatigue tests, as a rule, are made to a base of 106-107 cycles. To obtain information on the fatigue resistance of materials to bases of up to 10g-10 ~~ cycles, high frequency machines are primarily used.
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