巻号一覧
18 巻 (1992)
- 6 号 p. 219-
- 5 号 p. 177-
- 4 号 p. 139-
- 3 号 p. 95-
- 2 号 p. 55-
- 1 号 p. 1-
18 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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睦好 宏史1992 年 18 巻 3 号 p. 95-101
発行日: 1992/05/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (6937K) -
福田 宜弘1992 年 18 巻 3 号 p. 102-105
発行日: 1992/05/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (4865K) -
宮入 裕夫1992 年 18 巻 3 号 p. 106-112
発行日: 1992/05/15
公開日: 2009/08/11
ジャーナル フリーPDF形式でダウンロード (2663K) -
成田 吉弘1992 年 18 巻 3 号 p. 113-120
発行日: 1992/05/15
公開日: 2009/08/11
ジャーナル フリーThis work presents a method of analysis for solving the free vibration of symmetrically laminated composite rectangular plates having any combination of free, simply supported and clamped edges along four sides. This approach uses a Ritz method for the energy functional, and trial functions used for deflections are introduced so as to automatically include geometric boundary conditions for a prescribed boundary. A computer code was developed to calculate natural frequencies and mode shapes for the problem, and was used to demonstrate the effectiveness and accuracy of the present approach.抄録全体を表示PDF形式でダウンロード (948K) -
福田 武人, 内藤 究, 三木 光範, 杉山 吉彦1992 年 18 巻 3 号 p. 121-128
発行日: 1992/05/15
公開日: 2009/08/11
ジャーナル フリーIt is shown that the principal axis of elasticity (abbreviated to PAE) can be rotated from the structural axis by giving a specific fiber orientation or stacking sequence of a fiber composite beam. The theoretical results for PAE obtained by the use of the laminated plate theory agree with the experimental results for PAE of GFRP and CFRP laminated cantilever beams in the static flexural and torsional tests. It is illustrated from the flexural-torsion analysis and the static test that the angle of torsion at the free end of the beam is zero when the center of gravity of the beam with an eccentric mass coincides with the PAE. The natural frequencies of a beam involving an eccentric mass can be predicted by solving the characteristic equation of a simplified vibration equation of two degree-of-freedom system. The flexural-torsion coupling effects are discussed by using the coupling coefficient in the equation. Solving the vibration equation subjected to the sinusoidal excitation, it is proved that the torsional amplitude of the free end of the beam is zero when the center of gravity is on the PAE. The experimental results of the sinusoidal excitation test agree with the analytical solution of the vibration equation.抄録全体を表示PDF形式でダウンロード (894K) -
今井 義雄, 塩田 一路, 篠原 嘉一, 池野 進1992 年 18 巻 3 号 p. 129-133
発行日: 1992/05/15
公開日: 2009/08/11
ジャーナル フリーEvaluation of fiber orientation in short fiber reinforced metals (SFRM) was attempted. An etched surface at transverse cross section to extruded direction was tilted to observe by SEM. Fiber angle distribution was determined by measuring the fiber angles in the photograph. The distribution was expressed by a simple form of Y=100/(1+Xm), and m shows the degree of orientation. This method is easy and reliable to evaluate the fiber orientation in SFRM, and is useful to standardize the evaluation method.抄録全体を表示PDF形式でダウンロード (2070K)
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