セラミックスと金属の締りばめ部の破壊に及ぼす真円度と表面あらさの影響

概要

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In the previous paper, we theoretically analyzed the distributions of the contact pressures between ceramic and metal whose cylindricities were not perfect. In this paper, the distributions of the contact pressures in the circumferential direction were theoretically analyzed when the roundnesses were not perfect. The distributions of the contact pressures were changed as the degree of out-of-roundness was changed. Shear stress did not exist on the surface to be jointed. The mean contact pressures decreased with increased surface roughness. And the concentrations of the contact pressures caused by the out-of roundness were relaxed by the roughened surfaces to be joined. The effects of both out-of roundness and surface roughness on the fractures of ceramic rings were also discussed. And it was shown that the roughened surfaces to be joined prevented the ceramic rings from fracturing.
社団法人日本機械学会の論文
1988-07-25