FRP積層T型継手における隅肉の有効性

概要

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The FRP laying-up of matting-in connection forming T-type is to be secondary bonds depending on the reinforcement each other. These matting-in angled are simplified by built-in I-beams formed flange and web, and thickness of web and width of fillet-leg are varied. The results obtained from these experiments can be summerized as follows: (1) The dimensional offect on a leg of fillet depends on σ_m/σ_0 (stress diminution factor). Where σ_0 gives maximum bending stress at the top of flanges in the solid I-beam, and σ_m gives decrease of stress owing to adherent matting-in angles. The values 0.4〜0.6 of this factor σ_m/σ_0 are suitable and conditions are obtained in 0.5〜0.6 of the factor a/(h_1/2). Where a represents the leg of fillet and h_1 is effective web height. σ_m becomes excessive in case of below 0.5, and σ_m decreases, in above 0.7, but these are not of practical use. (2) It is proved that the legs of fillets are to be reasonable dimensions when they are 35〜50 millimetres.
独立行政法人海上技術安全研究所の論文
1972-09-30