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Nondestructive Evaluation of Hardening Degree of Epoxy Resin in CFRP with Eddy Current Testing
Hiroyuki Kosukegawa, Rie Yamada, Shinya Tamonoki, Noriyuki Sato, Keisuke Ura, Toshiyuki Takagi
65 - 72
10.3233/978-1-61499-836-5-65
Studies in Applied Electromagnetics and Mechanics
Volume 43: Electromagnetic Non-Destructive Evaluation (XXI)
Abstract

Chemiluminescence anlaysis and high-frequency eddy current testing (HF-ECT) were examined as nondestructive evaluation techniques to assess the hardening degree of epoxy resin in carbon fiber-reinforced plastic. Both techniques showed a correlation with the hardening degree of epoxy resin measured by differential scanning calorimetry. The results also indicated that the application of HF-ECT at frequencies of >50 MHz is suited for hardening degree determination.

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