研究論文
アコースティックエミッション測定を用いた炭素繊維強化プラスチックス接着継手の健全性評価手法の検討
2020 年 46 巻 4 号 p. 137-142
詳細
2020 年 46 巻 4 号 p. 137-142
In this study, we used the acoustic emission (AE) method to evaluate the integrity of a carbon fiber-reinforced plastic (CFRP) single-lap joint. We fabricated single-lap joints with different adherends, surface roughness and contamination conditions. For these joints, AE measurements were conducted under tensile shear adhesion strength tests to investigate the possibility of evaluating the state of adhesion. The shear adhesion strength for unidirectional CFRP was higher than that for textile CFRP. Surface roughening effectively improved the strength and contamination degraded the strength at the tips of the joint. AE measurement results suggested the possibility of integrity monitoring for CFRP joints by focusing on whether the Kaiser effect is effective.
