横穴をもつ中実円形はりの降状と破壊 : 第2報,実験の説明

概要

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The maximum point of stress is found in a beam of the circular cross-section with a radial hole which is perpendicular to the neutral axis. Both the yielding and the rupture of beams are analyzed by taking a strip parallel to the neutral axis at that point and by considering the effect of the surface layer which is inherent for the material. The analytical results conform very closely with the experiments of the mild steel, the plaster and the graphite shown in the 1st report. The thickness of the surface layer taken in this case is 0.20 mm for the mile steel, 0.26 mm for the plaster and 0.36 mm for the graphite. And the conclusion derived from the analytical results is that there are limits of the upper and lower stresses in the strength of beams.
一般社団法人日本機械学会の論文
1988-06-25