巻号一覧
37 巻, 10 号
選択された号の論文の10件中1～10を表示しています
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滝澤 章1981 年 37 巻 10 号 p. P345-P352
発行日: 1981/10/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (581K) -
飯島 俊郎, 金 在〓1981 年 37 巻 10 号 p. P353-P360
発行日: 1981/10/10
公開日: 2008/11/28
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上出 健二, 真鍋 征一1981 年 37 巻 10 号 p. P361-P368
発行日: 1981/10/10
公開日: 2008/11/28
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清水 剛夫1981 年 37 巻 10 号 p. P369-P375
発行日: 1981/10/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (503K) -
木村 尚史1981 年 37 巻 10 号 p. P376-P379
発行日: 1981/10/10
公開日: 2008/11/28
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第3報分子配向と粘弾性異方性との相関性葭原 法, 福島 昭夫, 渡辺 寧, 中井 明美, 野村 春治, 河合 弘廸1981 年 37 巻 10 号 p. T387-T414
発行日: 1981/10/10
公開日: 2008/11/28
ジャーナル フリーポリエチレンテレフタレートの恒時動的粘弾性の温度依存性データ(-150～200°C)からα, βおよびγ(αI, αII, β, γI, γII, γIII)の各緩和機構を分離する現象論的な方法を,次の3つの仮定の基に誘導した。すなわち, (1)粘弾性関数に対する各緩和機構の寄与の加成性, (2)各緩和機構内に独立に時間-温度換算則の成立,および(3)各緩和機構の損失弾性率関数の還元対数周波数あるいは絶対温度の逆数に対するプロットが単一の極大をもつ対称形で与えられる。
各緩和機構(第j機構)の損失弾性率の絶対温度の逆数プロットをガウス関数に仮定して,その最大値Aj,分散の鋭さC*j,積分緩和強度ΔEjと結晶および非晶鎖セグメントの配向分布の2次および4次モーメンととの相関係数を,種々の一軸および直交二軸延伸,熱処理物について求めた。
分子配向の最も高い相関がΔEjに見出され,次の3つの結論が得られた。すなわち, (i) β力学分散は非晶鎖セグメントの配向緩和のみならず結晶高次組織の配向緩和に相関をもつ, (ii) αI力学分散は結晶高次組織中の結晶粒の回転緩和に関連し,結晶(100)面が最も滑り易い面であるとすれば,結晶α-軸(ベンゼン面に垂直な結晶軸)まわりの結晶粒の回転の可能性が高い, (iii)γ(γIIおよびγIII)力学分散は非晶鎖セグメントの局所的な変形緩和に関連する。抄録全体を表示PDF形式でダウンロード (1716K) -
中山 晃1981 年 37 巻 10 号 p. T415-T419
発行日: 1981/10/10
公開日: 2008/11/28
ジャーナル フリーIn order to clarify the bending properties of the laminated clothes having regularly different bending rigidities, such as the padded clothes or the quilting coats, a non-uniform beam model whose bending rigidity is variant along the direction of the length is supposed. On the basis of the model an analytical method on the bending behaviour is considered.
It was proved that the analytical method using “Area-moment method” was effective for describing the bending of the laminated clothes with the ease in calculating with a micro computer.
By this method, if the distribution of bending rigidity and weight in a laminated cloth is previously known, it is possible to obtain the correct deflection curve.
Furthermore, referring to the deflection curve of the laminated cloth, the partially unknown bending rigidity can be calculated.抄録全体を表示PDF形式でダウンロード (354K) -
伴 菊夫, 大塚 裕光, 高橋 清久1981 年 37 巻 10 号 p. T420-T425
発行日: 1981/10/10
公開日: 2008/11/28
ジャーナル フリーThe effect of hoop winding on tensile and compressive properties of glass fiber reinforced plastic (GFRP)-filament winding (FW) pipes has been investigated experimentally. Winding angles of the helical filaments in FW pipes were ±20°, ±30°, ±45°, and ±60°.
Both in tensile and compressive tests, specimens with the same shape and size were used. As for the specimen with hoop winding, Young's moduli on tension and compression are nearly equal. But the breaking strengths of the specimens with winding angle of ±20° and ±30° are considerably larger on tension than on compression, because of the difference of the failure modes: On tension, tensile breakage of fibers (+θ) and shear slippage between fibers (-θ) are observed simultaneously. While on compression, the fibers (±θ) are buckled and broken by bending.
The effects of adding the hoop winding (winding angle_??_90°) to the GFRP-FW pipe are as follows: (1) On tension, Young's modulus and Poisson's ratio decrease and breaking strength increases. (2) On compression, Young's modulus and breaking strength increase remarkably. (3) The pantographic deformation observed on tensile test of the ±45° specimen without hoop winding is restricted. (4) The helical propagation of cracks observed on compression of the specimen without hoop winding is arrested by adding the hoop winding.抄録全体を表示PDF形式でダウンロード (922K) -
馬越 芳子, 石川 欣造1981 年 37 巻 10 号 p. T426-T432
発行日: 1981/10/10
公開日: 2008/11/28
ジャーナル フリーThe structure characteristics of silk plain fabrics were studied by means of high speed scanning microscopy (E. D. P.) pattern and the contact printing image.
The results obtained are summarized as follows.
1. The areas of the openings in the fabrics were 11-12% (gray), 3% (habutae) and 2% (crape). The shapes of the openings were: habutae and gray fabrics, in slit form with symmetry in respect to the perpendicular axis, and crape, in fusi- or triangle form with unsymmetry in respect to the perpendicular axis.
2. E. D. P. patterns were observed as checked patterns which differed depending on the warp shifting up and down at the intersection of warp and filling lines.
3. Judging from the optical properties, the fine structures of the silk plain fabrics were figured in detail in the fraunhofer diffraction patterns of the contact printing images.
4. In the fraunhofer pattern of E. D. P. pattern, the diffusion around the interference points are observed as equivalent density outlines.
5. Fraunhofer patterns of the silk plain fabrics contain exact informations of the area, number, form, size and position of the opening.抄録全体を表示PDF形式でダウンロード (2113K) -
清水 慶昭, 木村 光雄1981 年 37 巻 10 号 p. T433-T436
発行日: 1981/10/10
公開日: 2008/11/28
ジャーナル フリーAdsorptions of 1, 2-ethane disulfonic acid (EDSA), 1, 4-butane disulfonic acid (BDSA) and sulfuric acid as the model compounds of dibasic dyes on polyamide were studied by NMR, the adsorption experiment and the flow type microcalorimetry.
The results obtained are as follows:
(1) The adsorption isotherms of alkyldisulfonic acids and sulfuric acid on polyamide were the Langmuir type.
(2) Only one of the two sulfonic acid groups in alkyldisulfonic acids seemed to take part in adsorption.
(3) -Δμ°I is of alkyldisulfonic acids were larger than that of the corresponding alkylmonosulfonic acids, because of the larger -ΔH°C•θ=1 and ΔS°C•I.
(4) ΔS°C•I and |Δδ| of BDSA were larger than those of EDSA. These are due to the larger contribution of the hydrophorbic hydration in the former.
(5) ΔS°C•I was positive and decreased with temperature in all cases.抄録全体を表示PDF形式でダウンロード (226K)
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