Thermal Expansion Coefficients of Unidirectional Fiber-Reinforced Composites

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  • 一方向繊維強化複合材料の熱膨張係数　ＩＩ　　ＣＦＲＰ一方向材およびエポキシ樹脂に関する実験
  • 1ホウコウ センイ キョウカ フクゴウ ザイリョウ ノ ネツ ボウチョウ ケイ
  • 第2報:CFRP一方向材およびエポキシ樹脂に関する実験

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Abstract

One point of main purpose of these experiments is to reveal certain temperature dependent behavior of thermal expansion coefficients of theconstituents of CFRP. The second purpose is a comparison between experimental and numerical results of an influence of αm on αx and αz. The third is to estimate unknown αffr and αfz of carbon fiber itself by such a comparison. Testing apparatus used here is an interferometric dilatometer utilizing gas laser which is sensitive enough to measure temperature dependent α's. Involved behavior of α's of unidirectional CFRP and Epoxy resin is elucidated by virture ofthese experiments and the authors' preceding analysis concerning this subject. For example, temperature dependency of αm has a predominant effect on αx, as it was suggested by the analysis. The estimated αfr and αfz are quite different from the corresponding values of pyrographite.

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