On the Stress Concentration in a Strip with a Row of Circular Holes Subjected to Tension

概要

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The stress concentration problem of a strip with a finite row of circular holes subjected to tension is solved numerically. The number of holes is taken from three to six. It is assumed that the holes have equal diameters and are placed on a center line of the strip at equal intervals. A numerical method is adopted in which a general form of stress function expressed in the polar coordinates and its transformed equation in the rectangular coordinates are recurrently used; the former is used with the method of Fourier analysis to satisfy the boundary conditions on the circular edges, and the latter is used with the method of Fourier transform to satisfy the boundary conditions on the rectilinear edges. Stress concentration factors are calculated and are summarized in some diagrams. The results coincide well with the solutions obtained by the finite element method.
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