ボルト締結時の締結部静的挙動に及ぼす六角ボルト頭部の影響

概要

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In this paper, influences are observed experimentally of the bolt head on the connected plate deformation and interface pressure distribution, making circular single bolted plates an object of study. And the relationships are made clear between the bolt head deformation, connected plate deformation and interface pressure distribution. And then the desired form of the bolt head is discussed from the view point of the static behavior in connecting. The following results are found. The bolt head restrains the deformation of the connected plate with little influence of the plate deformation. By the enlargement of the bolt head width across fiat B and bolt head height H, the plate deformation is restrained, the state of the interface pressure distribution becomes more uniform and the effective area of the connecting force is increased. A proper size relation exists between H and B, and it can be expressed by the head size ratio H/B. The effects of the bolt head become smaller in accordance with the increment of the connected plate thickness. But the influences remain on the compressive elastic deformation of the connected plate by the pressure of the bolt head bearing surface.
公益社団法人精密工学会の論文
1983-02-05