並んだ切欠を有する半無限平板における応力について

概要

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The fatigue strength of material is closely connected with the stress concentration due to a notch and the value of maximum stress in a specimen with several notches is in general somewhat diminished by the interference of notches. To investigate the interference, we consider the stress distribution using the next transformation [numerical formula] where z=x+iy, w=u+iv. C_m are chosen according to the boundary form. The stress function F is composed of fundamental stress function F_0 and additional stress function F_a, and each function is given by φ_0+xφ_1,where φ_0 and φ_1 are harmonic functions. The results of calculation show that the concentrated stress is decreased by the interference of notches comparing with the case single notch. The fact is available for engineering problems to increase the fatigue strength of structure.
一般社団法人日本機械学会の論文
1951-11-20