Structural damage detection by using hybrid time reversal process method

초록

This paper presents a hybrid time reversal process method (HTRPM) for the structural damage detection. The HTRPM is characterized by three key features: (1) In the HTRPM, the forward process of the time reversal process is conducted by the measurement while the backward process is conducted by the computation; (2) For structural damage detection, the damage signal is obtained by extracting the comparison signal from the signal reconstructed by the time reversal process; (3) The imaging method is used to visualize the damage location by using the damage signal. The HTRPM is applied to the aluminum plates and composite laminated plates. Experimental results show that the proposed HTRPM can successfully detect the damages generated in the plate specimen.