@article{oai:jaxa.repo.nii.ac.jp:00032260,
 author = {山脇, 弘一 and 植村, 益次 and YAMAWAKI, Koichi and UEMURA, Masuji},
 issue = {2_A},
 journal = {東京大学宇宙航空研究所報告},
 month = {Apr},
 note = {特に比強度が高いのを利用して,フィラメント・ワィンディング(FW)法によるせんい強化プラスチック材をロケットチャンバへ適用する開発研究が進められてきた.しかしFW材は剛性が低く,ダイバージェンスなど空力弾性の観点から問題となり,FW材構造の剛性値を的確に把握することが重要である.本文は以上の目的からFW材の弾性係数を理論的に解析し,各種の弾性試験を行なって実験値と比較し,両者の良好な一致を得た結果について述べる.すなわち,まずFW材の構成材である一方向強化材の直交異方性材料としての弾性常数について,前報でContiguity factorという経験係数をせんい含有率の関数として導入した解析式を発表したが,今回さらにせんいの正方配列を考慮した理論式を提示し,せんい含有率の関数として示す式を導く.次にこれら一方向強化材の弾性常数に基づいて,斜交巻きFW円筒材や,実際の円筒形ロケットチャンバで見られる斜交巻き+周巻き併用構造などの多層積層材の弾性常数の算出式を導びき,各種巻き角度での実験結果と比較した結果を示す., In the previous paper, the authors presented analytical formulae for the elastic moduli of unidirectional fiber-reinforced composite materials. In these expressions, an empirical coefficient such as contiguity factor has been used, which is similar with one proposed by Tsai, but is assumed to be a linear function of fiber volume fraction. In the present paper, refining the previous research, the analytical formulae are first proposed by considering the square array of reinforced fibers without introducing an empirical factor used in the previous paper. Comparing with the proposed formulae by other authors, these analytical values agree well with the experimental results on glassfiber/epoxy composites which are obtained by the authors. In addition, the analytical formulae for elastic moduli of multilayered composite, that is, the helical-wound cylinder or the alternating helical and circumferential winding cylinder such as applied to rocket chamber, are proposed by using the elastic moduli of unidirectional fiber-reinforced materials proposed firstly in the present paper. These analytical values show a good agreement with the experimental values on filament-wound cylinders of various sorts of winding angle which are obtained by the authors., 資料番号: SA0125424000},
 pages = {315--333},
 title = {一方向強化材と多層積層複合材の弾性常数の一解析},
 volume = {7},
 year = {1971}
}