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  • Summary & Details

Study on Non-Destructive Evaluation of Fiber Content for Advanced Quality Assessment of Recycled CFRP Thermal Diffusivity Measurement Using Active Thermography

リサイクルCFRPの品質評価の高度化に向けた繊維含有率の非破壊評価に関する研究 アクティブサーモグラフィ法による熱拡散率計測

Detailed Information

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, 3) 豊田中央研究所, 4) トヨタ自動車
Affiliation(E)1) Kyoto University of Education, 2) Toyota Motor, 3) Toyota Central R&D Labs., 4) Toyota Motor
Abstract(J)炭素繊維強化複合材料(CFRP)の中でも,リサイクル繊維を用いたCFRP(リサイクルCFRP)が近年注目されている.リサイクルCFRPの品質評価においては,繊維含有率の均一性を非破壊で評価することが重要である.CFRPの厚さ方向の繊維含有率を評価する指標として,著者らは厚さ方向の熱拡散率に着目した.本研究では,フラッシュランプを用いたアクティブサーモグラフィ法をCFRPに適用し,厚さ方向の熱拡散率を計測した.さらに,熱拡散率を用いた繊維含有率評価の可能性について検討した.

Translation

Abstract(E)Recently, recycled carbon fiber reinforced polymer (recycled CFRP) composites, which are made from recycled fibers, have attracted considerable interest. In the quality assessment of recycled CFRP composites, non-destructive evaluation of fiber content uniformity is important. As an indicator reflecting the through-thickness fiber content in CFRP composites, we focused on their out-of-plane thermal diffusivity. In this study, active thermography using a flash lamp was applied to CFRP composites to measure their out-of-plane thermal diffusivity. Furthermore, the feasibility of evaluating fiber content using the out-of-plane thermal diffusivity was investigated.

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