ヘリカル巻きFW円筒の破壊強度 : III 内圧強度

概要

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In the present paper are described the results of analytical and experimental studies made on the strength of helically wound composite cylinders under internal pressure, following up the previous papers on the axial tensile strength and the torsional strength. The burst strength can be predicted by the same analytical procedure as that for axial tension or torsion; in other words, the three-dimensional plastic stress components on any plane containing fibers in each layer of the laminated composite cylinder will be analysed and related with the four kinds of fundamental strength of unidirectional reinforced composites. The results of the experimental studies on glass-epoxy composite cylinders show good agreement with the analytical fracture values including the fracture behaviors. The netting analysis customarily applied to the pressure vessel design is found to be of no use except the range of winding angle around 55°. On the other hand, the authors' views for the analysis of fracture strength of filament-wound structure can be consistently applied throughout the range of all winding angles under any kind of external loading, and the good agreement with the various kinds of experimental results proves the availability of these views of the authors'.
社団法人日本材料学会の論文
1972-04-15