Journal of Theoretical
and Applied Mechanics

30, 4, pp. 833-842, Warsaw 1992

The propagating fatigue crack length estimation based on the crack opening at the specimen edge measurement results

Czesław Goss, Jan Leśniewski, Sylwester Kłysz
The crack length measurement method on a flat specimen with single edge on crack (SEC) based the crack opening measurement results on the specimen edge is presented in this paper. This method was applied to tests of 18G2A steel specimens under constant amplitude load and also under load of constant amplitude with some singular overloadings applied at equal time intervals repeatedly.