Abstract
In this research, a remote AE measurement method with an optical fiber sensor was proposed to detect AE waves in composite materials under ultimate environments, and the effectiveness of the method was evaluated. As a result, this method was confirmed to have a broadband sensitivity. Moreover, based on the mode conversion of AE waves, the remote sensor was found to obtain the AE waves with the same waveform as that at the adhesion point of the optical fiber. Then, the relation between the dominating modes in AE waves and the damage types was clarified for a CFRP laminate. The result indicated that damage types generated under a bending load were able to be identified from the AE modes.
