A Modified Electro-Mechanical Impedance Model of Piezoelectric Actuator-Sensors for Debonding Detection of Composite Patches

By Y. G. Xu, Gui-Rong Liu. 2002

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Application of Electromechanical Impedance Technique for Engineering Structures: Review and Future Issues (2010, unknown): “Researchers (Xu and Liu, 2002; Bhalla and Soh, 2004a,b,c) have suggested that the PZT transducer should be bonded to the structure using an adhesive of high shear modulus and smallest practicable thickness.”
Piezoelectric Transducer-Based Structural Health Monitoring for Aircraft Applications (2019, methodology): “Based on the previous study [22,32], the piezoelectric transducer driven system is regarded as a Spring-Mass-Damping (SMD) system (see Figure 7).”
Structural identification and damage diagnosis using self-sensing piezo-impedance transducers (2006, background): “Assuming perfect bonding between the PZT patch and the host structure, the effect of the bonding layer (Xu and Liu 2002, Nguyen et al 2004) is thus ignored and the entire structure is represented by its driving point mechanical impedance, resembling a black box.”
Overview of Piezoelectric Impedance-Based Health Monitoring and Path Forward (2003, methodology): “A debonding detection method for composite patches is proposed based on the coupled use of the impedance method and hybrid genetic algorithms (Xu and Liu, 2002).”
Electromechanical Impedance Modeling for Adhesively Bonded Piezo-Transducers (2004, methodology): “Modified impedance model of Xu and Liu (2002) including bond layer.”