STRESS CONCENTRATIONS IN A STRIP UNDER TENSION AND CONTAINING AN INFINITE ROW OF SEMICIRCULAR NOTCHES

摘要

The problem of determining the stresses in an infinite strip of finite breadth under tension and containing an infinite row of semicircular notches of equal radii placed at equal distances on the edges is studied theoretically. Stress concentration is calculated by a perturbation method in several cases, the radius of the notches and the distance between the centres of neighbouring notches being varied. The decrease in stress concentration is studied and compared with the results for an infinite strip under tension and containing two semicircular notches placed symmetrically on the edges. It is also compared with the stress concentrations in the simi1ar problems of an infinite strip or a semi-infinite plate with notches under tension.