Abstract
The stress concentration factor of cyclic notches is influenced by the notch root radius, the notch depth, the notch pitch and so on. Therefore, the concept of the equivalent ellipse is not directly applicable to cyclic notches. In this paper, the solution is given for a half plate with cyclic notches under uniform normal stress at infinity. The formulation of this problem is treated as a Hilbert's problem and complex variable method is used to obtain the solution.
