Abstract
In this paper, the effects of a pair of symmetrical notches on the transverse flexure of an infinite strip under the state of plain bending are investigated by the use of the Poisson-Kirchhoff theory of thin plate. The analysis is developed with the help of three fundamental solutions w00, w' and w'', and the unknown coefficients included in the function, expressing the deflection of thin plate, are determined by the method of perturbation. In order to clarify the effect of making semicircular notches, the distributions of bending couples and deflections, and the stress concentration factors are calculated and plotted versus notch diameter-strip width ratio and Poisson's ratio of the plate material.
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