Fatigue life of randomly loaded structures

We study a complicated problem of estimation of the fatigue life of randomly loaded structures. Typical operating conditions are determined by a collection of statistical parameters which characterize random loading and the influence of the environment. These characteristics were either theoretically determined or experimentally measured with regard for stress concentrators and properties of stationary and nonstationary processes and then applied to the evaluation of fatigue life by using the hypothesis of accumulation of fatigue damages and either deterministic or probabilistic approach.