暴露サンプルを用いた防食塗膜下の劣化部検知手法の開発

抄録

The purpose of this study is to develop of detective method for degradation under paint film using exposure sample. Fundamental experiments for development of nondestructive evaluation method by using characteristics on propagation of low-frequency waves in coating thin plate were carried out. The proposed detective method applied distribution of response of deflection amplitude at degradation part and no degradation part in coating thin plate model to low-frequency incident wave.
The distinct responses of deflection amplitude at degradation part and no degradation part were obtained although using low-frequency waves. The results of the experiments show that it is possible to detect for degradation in coating thin plate by proposed nondestructive evaluation method.