直線みぞで連結された2円孔を有する無限板の引張り

概要

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It is well-known that, in a plate, a crack perpendicular to the direction of the tension causes a very high stress concentration at its tips and tends to spread, and the spreading can be stopped by drilling holes at the ends of the crack. Considering the above case and using the theory of elasticity, we have solved approximately the problem on the tension of an infinite plate containing two circular holes connected by a narrow slit. From the solution, it can be concluded that the stress concentration at the bottom of the circular hole decreases with the increase of the diameter of the circular hole and its value is very close to that given by the elliptic hole enveloping the two circular holes, but the former is larger than the latter.
一般社団法人日本機械学会の論文
1964-01-25