巻号一覧
15 巻 (1989)
- 6 号 p. 235-
- 5 号 p. 185-
- 4 号 p. 137-
- 3 号 p. 89-
- 2 号 p. 49-
- 1 号 p. 1-
15 巻, 3 号
選択された号の論文の8件中1～8を表示しています
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土木建築―I.土木建築構造物秋浜 繁幸1989 年 15 巻 3 号 p. 89-92
発行日: 1989/05/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (1225K) -
土木建築―II.住宅機器小柳 卓治1989 年 15 巻 3 号 p. 93-97
発行日: 1989/05/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (1981K) -
ピッチ系高強度化へのアプローチ佐藤 公隆, 松本 光昭, 吉村 徳男1989 年 15 巻 3 号 p. 98-103
発行日: 1989/05/15
公開日: 2009/08/11
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佐川 孝俊1989 年 15 巻 3 号 p. 104-108
発行日: 1989/05/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (1729K) -
岩井 宏, 植村 益次, 大久保 洋志1989 年 15 巻 3 号 p. 109-115
発行日: 1989/05/15
公開日: 2009/08/11
ジャーナル フリーThe mechanical in-plane shear testing method for advanced composite panels has not yet been authorized internationally because of its difficulty to present the uniform shear stress field and the reliable shear properties. In the present paper, the several revisions of the traditional picture-frame loading fixture are proposed to use for the in-plane shear testing method. The experiments on unidirectional and cloth-reinforced CFRP specimens and the numerical analyses by the use of FEM were performed in order to verify the advantages of these various revisions. As a result, the uniform pure shear stress state and hence the reliable higher shear strengths were obtained, because there is no large stress concentrations along edges and at corners, compared with other testing methods which used the traditional simple picture-frame fixture, two-rail or three-rail shear fixtures and JIS method. That is, in these shear tests which are used most widely at present, the lower shear strengths were obtained because of the premature failure due to stress concentration and nonuniform stress distribution. Further, it seemed that JIS method for GFRP did not give a shear fracture under combined stress conditions in unidirectional composites.抄録全体を表示PDF形式でダウンロード (4221K) -
久山 徹也, 金 雄二, 高橋 清久1989 年 15 巻 3 号 p. 116-121
発行日: 1989/05/15
公開日: 2009/08/11
ジャーナル フリーThe analytical model for the fiber/matrix interfacial slippage, developed in the preceding paper, has been extended to the prediction of the transverse elastic moduli of the unidirectional fiber composite. The isotropic elasticity is assumed for both of the fiber and the matrix, and the theory of plane strain elastic field in the transverse cross-section of the fiber composite is applied. The effective transverse elastic moduli are formulated using the principle of minimum complementary energy. Numerical calculations are conducted for the transverse tensile moduli of a boron/aluminum composite and the theoretical results are compared with the existing experimental data. The analysis developed here can be applied to the prediction of the transverse tensile stress-strain relation, if the yield stress and the stiffness degradation after the yielding are provided for the matrix aluminum.抄録全体を表示PDF形式でダウンロード (627K) -
青木 隆平, 久保 智朗, 小山 一夫, 近藤 恭平, 小林 繁夫1989 年 15 巻 3 号 p. 122-131
発行日: 1989/05/15
公開日: 2009/08/11
ジャーナル フリーTension-tension and compression-compression fatigue tests are conducted on cross-ply, angle-ply and quasi-isotropic carbon/epoxy (CFRP) laminates to characterize the damages which affect the fatigue strength. Two types of matrix-dominated damages, the transverse crackings and delaminations, are found to have significant effects on the final strength for the quasiisotropic laminates, while for the cross-ply and the angle-ply laminates, the correlations between these damages and the fatigue strength are not clear. Concise analyses of delamination onset and growth using the energy-release-rate approach are also given for quasi-isotropic laminates. Effects of stacking sequence, loading direction and ply thickness on delamination are clarified. The effective size of inherent free-edge flaws for delamination onset is also examined.抄録全体を表示PDF形式でダウンロード (1161K) -
1989 年 15 巻 3 号 p. 133-136
発行日: 1989/05/15
公開日: 2010/02/08
ジャーナル フリーPDF形式でダウンロード (593K)
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