巻号一覧
23 巻 (1997)
- 6 号 p. 199-
- 5 号 p. 161-
- 4 号 p. 121-
- 3 号 p. 81-
- 2 号 p. 41-
- 1 号 p. 1-
23 巻, 3 号
選択された号の論文の6件中1～6を表示しています
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スマートコンポジット応用技術(1)航空・宇宙関連山口 泰弘1997 年 23 巻 3 号 p. 81-86
発行日: 1997/05/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (5720K) -
友永 文昭, 山田 和男, 石田 浩一, 藤山 光美1997 年 23 巻 3 号 p. 87-91
発行日: 1997/05/15
公開日: 2009/08/11
ジャーナル フリーApplication of the microbond method to thermoplastics was investigated. Adhesion (shear strength) between carbon fiber and various polypropylenes (PP) was evaluated by the microbond method. Optimum measurement conditions such as the conditioning time from droplet application to measurement and the embedded length of the fiber in the resin and the effect of viscosity (melt flow index) of the resin were studied. Shear strength was measured successfully for conditions of an embedded length from 100 to 250 μm and of a time of 3 or 4 days. In order to improve the adhesion, a maleic anhydride-grafted PP (MPP) was mixed with PP and carbon fiber was treated by various plasmas. Addition of MPP to PP increased the shear strength by 50% for untreated carbon fiber and by 70% for O2 plasma treated carbon fiber.抄録全体を表示PDF形式でダウンロード (4004K) -
李 正旺, 金原 勲, 影山 和郎, 鈴木 敏夫, 大沢 勇1997 年 23 巻 3 号 p. 92-99
発行日: 1997/05/15
公開日: 2009/08/11
ジャーナル フリーThe crack shear displacement (CSD) is theoretically four times sensitive to the crack propagation than that of the load point displacement. In this paper based on CSD measurement, a new testing method for mode II fatigue delamination growth of unidirectional CFRP laminates was developed. Mode II fatigue tests are conducted by applying the end-notched flexure (ENF) specimen and controlled by a computer through the parameter of maximum mode II energy release rate (GIImax). The crack length and the GIImax were measured through the CSD compliance. In order to measure the CSD with a high accuracy, experimental techniques, such as selection of the gage, mounting method of the gage and methods for preventing the ENF specimen from shifting during fatigue, were fully examined. Especially, with the solution of the friction problem which exists between the surfaces of the mode II crack, the accuracy and the stability of the CSD measurement have been greatly improved. As test conditions, the influence of the loading frequency and the suitable range of the normalized GIImax gradient of the GIImax-shedding test were also discussed.抄録全体を表示PDF形式でダウンロード (8055K) -
高橋 淳, 野村 正人, 津田 浩, 北出 真太郎, 永井 英幹, 剱持 潔, 林 龍一, 福田 博1997 年 23 巻 3 号 p. 100-107
発行日: 1997/05/15
公開日: 2009/08/11
ジャーナル フリーTo realize future transport such as SST (HSCT), HST and space plane, we have to develop drastic technologies for lightening weight and assuring reliability of composite structures. In this connection, authors have studied damage monitoring techniques for composite structures by using fiber optic methods. In this paper, we investigated a possibility of bearing failure monitoring of the bolted joints of C/C composites by detecting the breaking of an attached optical fiber. Results obtained are summarized as follows: (1) Damage cannot be detected unless the plastic coating of optical fibers is stripped. (2) When attaching the stripped optical fiber longitudinally to the loading direction, bearing and net tension failure can be detected though shear-out failure cannot be detected. (3) When attaching the stripped optical fiber transversely to the loading direction, both bearing and shear-out failure can be always detected. There is a proportional correlation between the distance from the optical fiber to hole edge and the pin displacement at optical fiber breaking. This attached type fiber optics is effective to apply to the practical structure monitoring, i.e., not only high temperature composite structures but also some kinds of infrastructures.抄録全体を表示PDF形式でダウンロード (5285K) -
第9章 複合材料の界面問題とマイクロ材料設計の初歩香川 豊1997 年 23 巻 3 号 p. 108-113
発行日: 1997/05/15
公開日: 2010/02/08
ジャーナル フリーPDF形式でダウンロード (3128K) -
久保村 健二, 和泉原 芳一, 澤田 健三, 石田 次雄, 相川 康浩1997 年 23 巻 3 号 p. 114-118
発行日: 1997/05/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (3818K)
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