In order to study the interfacial debonding performance of prefabricated concrete structures

piezoceramic sensors are used to monitor the damage of concrete beams with/without nanomaterials.The wavelet packet theory is used to analyze the relationship between the interface debonding damage and energy consumption of the loaded beams.The experimental results show that the interfacial debonding performance of concrete beams with nanomaterials is significantly improved compared with concrete beams without nanomaterials.Time domain analysis

wavelet packet energy and damage indicators explain the reasons for the enhancement of the strength of concrete beams due to the addition of nanomaterials and qualitatively identify the degree of interface debonding damage.The experimental research proves that the active sensing method based on piezoceramic sensor has great potential to be applied in practice for inaccessible damage detection of prefabricated concrete structures interfaces.