巻号一覧
16 巻 (1990)
- 6 号 p. 219-
- 5 号 p. 173-
- 4 号 p. 123-
- 3 号 p. 85-
- 2 号 p. 43-
- 1 号 p. 1-
16 巻, 4 号
選択された号の論文の7件中1～7を表示しています
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伊藤 昌行, 鈴木 隆夫, 中橋 昌子, 竹田 博光1990 年 16 巻 4 号 p. 123-131
発行日: 1990/07/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (9120K) -
中橋 昌子1990 年 16 巻 4 号 p. 131a
発行日: 1990/07/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (118K) -
松山 一夫, 中川 好正1990 年 16 巻 4 号 p. 132-138
発行日: 1990/07/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (822K) -
久山 徹也, 尹 昊圭, 高橋 清久1990 年 16 巻 4 号 p. 139-146
発行日: 1990/07/15
公開日: 2009/08/11
ジャーナル フリーThe transverse stress-strain relation of the unidirectional fiber composite is investigated theoretically taking into account of the matrix yielding and the interfacial adhesion. The matrix yielding is determined by the average tensile stress in the matrix. Three types of the fiber/matrix interfacial bondings are considered ; (1) perfect adhesion, (2) interfacial slippage and (3) cavity formation. Numerical results are compared with the experimental data on the unidirectional Boron fiber/Aluminum composite reported by Kyono et al., and the following conclusions are obtained. The stress applied to the composite corresponding to the matrix yielding increases gradually with the increase of the fiber volume fraction (Vf). Comparing with this increase of the stress applied to the composite, the transverse Young's modulus of the composite increases more rapidly as Vf increases. Therefore, the strain of the composite corresponding to the matrix yielding decreases remarkably with the increase of Vf. Because the radial tensile stress at the fiber/matrix interface is larger for Vf=30% than for Vf=50%, the interface is easy to be debonded and to form the cavity for Vf=30%.抄録全体を表示PDF形式でダウンロード (805K) -
高橋 清久, 久山 徹也, 尹 昊圭, 中島 和夫1990 年 16 巻 4 号 p. 147-154
発行日: 1990/07/15
公開日: 2009/08/11
ジャーナル フリーIn a preceding paper, the interfacial slippage model of the unidirectional fiber composite was developed assuming that the fiber and the matrix were both isotropic. By the use of this model, the elastic moduli and the stress distribution in the transverse cross-section of the composite can be predicted. In this paper, the interfacial slippage model has been extended to the composite reinforced with transversely isotropic fiber. The predicted transverse Young's moduli of the unidirectional carbon fiber/PEEK composites are compared with the experimental results. In the experiment, two types of unidirectional carbon fiber/PEEK composites are prepared : (a) from prepreg sheet and (b) from the cloth woven using the warp of carbon fiber and the weft of PEEK fiber. The transverse Young's modulus of the specimen (a) coincides with the theoretical results assuming the perfect adhesion at the carbon fiber/PEEK interface. On the other hand, the experimental result, of specimen (b) rather coincides with the theoretical prediction based on the interfacial slippage model.抄録全体を表示PDF形式でダウンロード (680K) -
浜田 泰以, 前川 善一郎, 横山 敦士, 藤田 章洋1990 年 16 巻 4 号 p. 155-162
発行日: 1990/07/15
公開日: 2009/08/11
ジャーナル フリーIt is often mentioned that braided fabric is useful as one of techniques to realize the concept of near-net shape in the reinforcement configuration of composite materials. One of important problems in composite structures is how to connect this material with other structures. It is well known that the unskillful design of joints often causes the bearing capacity of composite structure to be reduced, even if each member in structures possesses the sufficient strength and stiffness. Therefore, a particular attention is required in designing the connection or the joints of composite structures. In this paper, we discuss the joint strength of specimen with braided hole reinforced with fibers around hole. The flat bar specimens are fabricated with glass fiber and epoxy resin by hand lay up method. The flat bar contain one braided hole. To compare joint performance between braided hole and machined hole, the specimens with machined hole are prepared. Joint test in tension are carried out. Bearing failure which doesn't lead to catastrophic fracture always occurs at any joint geometries in the case of braided hole. Braided hole can be realized high joint performance with small joint geometry.抄録全体を表示PDF形式でダウンロード (7372K) -
劔持 潔1990 年 16 巻 4 号 p. 163-165
発行日: 1990/07/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (387K)
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