Abstract
In this paper, the effects of a pair of symmetrical semicircular notches on the transverse flexure of an infinite strip under the state of plain bending are investigated by use of the Poisson-Kirchhoff theory of thin plates. The unknown coefficients included in the solution are determined by the method of perturbation. In order to clarify the effect of making the semicircular notches, the distributions of bending couples and the stress corcentration factor kb are calculated and plotted versus the ratio of notch diameter to strip width and Poisson's ratio of the plate material. The deflections of the strip are also calculated and shown graphically.
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