フィラメント・ワインディング・パイプの強度および曲げ疲れ強度

Material type: 文書・図像類

Author: 野口, 義男ほか

Publisher: 航空宇宙技術研究所

Publication date: 1977-08

Material Format: Digital

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Note (General)：: This paper presents the results of analysis and tests conducted on the static bending strength of carbon fiber filament-wound(F・W) cylindrical pipe al...

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Material Type: 文書・図像類
Title: フィラメント・ワインディング・パイプの強度および曲げ疲れ強度
Author/Editor: 野口, 義男
古田, 敏康
NOGUCHI, Yoshio
FURUTA, Toshiyasu
Author Heading: 野口, 義男
古田, 敏康
NOGUCHI, Yoshio
FURUTA, Toshiyasu
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1977-08
Publication Date (W3CDTF): 1977-08
Alternative Title: Static and Flexural Fatigue Strength of Filament-Wound Pipe
Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-509
No. or year of volume/issue: 509
Volume: 509
Pages: 9-
ISSN (Periodical Title): ISSN : 0389-4010
Text Language Code: jpn
Target Audience: 一般
Note (General): This paper presents the results of analysis and tests conducted on the static bending strength of carbon fiber filament-wound(F・W) cylindrical pipe along with the results of tests on flexural fatigue strength of the same F・W pipe. The relationship between the winding angles of F・W pipe and fracture strength under pure bending was also investigated. The analytical method for the fracture strength of F・W pipe was as follows; the three-dimensional stress components referring to the plane including fibers were analysed, taking into account elastic failure prior to overall fracture, then comparing with the fundamental strengths corresponding to the four kinds of fracture mechanisms of unidirectional fiber reinforced composites. The results of the analysis showed that the fracture modes under pure bending of helical wound pipe was determined in relationship to the winding angle; 1.Winding angle α=0°～10°, Fracture caused by compression stress in the fiber direction. 2.Winding angle α=15°～30°, Fracture caused stress normal to fibers. 3.Winding angle α=35°～50°, Fracture caused by shear stress. 4.Winding angle α=55°～90°, Fracture caused by tensile stress normal to fibers. Static and flexural fatigue tests were performed on carbon fiber F・W pipe with helical winding angles of α=15°, 25°, 35°, 45°. The fatigue test on F・W cylindrical pipe was successfully carried out using a newly-devised chuck. Both fracture strength and fracture modes obtained in the bending fracture test coincide with the analytical results. The results of the flexural fatigue test showed the ratio of the flexural fatigue strength at 10(exp 7) cycles to the static bending strength to be about 0.3 for helical winding angle α=15°, 25°, and about 0.2, for α=35°, 45°.
資料番号: NALTR0509000
レポート番号: NAL TR-509
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ