1320 Damage detection in CFRP laminates by broadband Lamb wave propagation using MFC actuator and FBG sensor
Details
In this research, we constructed a wave propagation system consisting of an MFC actuator to generate Lamb waves and an FBG sensor to receive the propagated waves. This system can send and receive broadband ultrasonic waves in CFRP laminates. Hence, we could identify the mode dispersion of Lamb waves propagating in a CFRP quasi-isotropic laminate by sending ultrasonic waves with different frequencies and comparing the result with theoretical dispersion curves. Moreover, we propagated the waves in the laminate with an artificial delamination. As a result, it was found that this system can obtain more effective information for detection of delamination.
