Effect of Heating Conditions on Fiber Orientation Evaluation in Carbon Fiber-Reinforced Polymer Composites Using Halogen Spot-Periodic Heating
ハロゲン点周期加熱を用いた炭素繊維強化複合材料の繊維配向評価に及ぼす加熱条件の影響
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- Publication code
- 20264395
- Paper/Info type
- JSAE Transaction
Vol.57 No.3
- Pages
- 549-555(Total 7 p)
- Date of publication
- May 2026
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Paper |
| Author(J) | 1) 赤井 淳嗣, 2) 濱田 幸宏, 3) 佐藤 康元, 4) 三国 敦 |
| Author(E) | 1) Atsushi Akai, 2) Yukihiro Hamada, 3) Yasumoto Sato, 4) Atsushi Mikuni |
| Affiliation(J) | 1) 京都教育大学, 2) トヨタ自動車(株), 3) (株)豊田中央研究所, 4) トヨタ自動車(株) |
| Abstract(J) | 炭素繊維強化複合材料は，優れた機械的特性を持ち，様々な分野で注目されている．炭素繊維強化複合材料は，繊維に平行な方向と垂直な方向で強度に違いがあるため，繊維配向の評価が重要となる．本報では，ハロゲン点周期加熱を用いた炭素繊維強化複合材料の繊維配向評価に及ぼす加熱条件の影響を調査した結果を述べる． Translation |
| Abstract(E) | Carbon fiber-reinforced polymer (CFRP) composites exhibit higher strength in the longitudinal direction than in the transverse direction of the fibers, making fiber orientation evaluation crucial. In this study, a method for evaluating fiber orientation using halogen spot-periodic heating is applied to a CFRP composite with unidirectional continuous fibers. Moreover, the heating conditions are investigated in terms of: (i) the effect of exceeding the upper limit of heating frequency on fiber orientation evaluation, (ii) the effect of heating time on fiber orientation evaluation, and (iii) the effect of spot-periodic heating on the composite's strength properties. Consequently, fiber orientation can be evaluated even when the heating frequency exceeds the upper limit, although the evaluation sensitivity decreases as the heating frequency increases. Furthermore, fiber orientation can be evaluated even when the time-series temperature variation does not reach a steady state due to short heating time, although applying a Hanning window in the frequency analysis is effective under such conditions. Finally, spot-periodic heating has no adverse effect on the composite's strength properties, because no change in the bending stress–strain relationship is observed before and after this heating. |
