鋼の有機接着継手の水中における静疲労

概要

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A static fatigue test was carried out with a steel adhesive joint in distilled water at 18〜50℃, and the static fatigue damage of the adhesive was analyzed on the basis of the theory of diffusion. The main conclusions obtained are as follows : The part of the adhesive containing more water than certain critical concentration, c_r, can be supposed to be a crack. The process of the static fatigue of adhesive joints in water is considered to be a thermally activated process controlled by the stress-accelerated diffusion of water. The static fatigue life, t_f, is expressed as follows;[numericai fornula] where D^^〜 is the effective diffusion constant, ψ and c^* material constants, σ_<f*> the initial strength, and h the height of the section of specimen. The effect of side diffusion on the fatigue life is not so significant.
一般社団法人日本機械学会の論文
1991-04-25