Advanced modeling of embedded piezo-electric transducers for the health-monitoring of layered structures  

作　　者：Enrico Zappino Erasmo Carrera 

机构地区：[1]Department of Mechanical and Aerospace Engineering,Politecnico di Torino,Mul2 Research Group,Torino,Italy

出　　处：《International Journal of Smart and Nano Materials》2020年第4期325-342,共18页国际智能和纳米材料杂志（英文）

摘　　要：The present paper presents an innovative approach for the numerical modeling of piezo-electric transducers for the health-monitoring of layered structures.The numerical approach has been developed in the frameworks of the Carrera Unified Formulation.This computa-tional tool allows refined numerical models to be derived in a unified and efficient fashion.The use of higher-order models and the cap-ability to connect different kinematic models using the node-depen-dent kinematic approach has led to an efficient modeling technique for global-local analysis.This approach can refine the model only in those regions where it is required,e.g.,the areas where piezo-electric transducers are placed.The model has been used to study embedded and surface-mounted sensors.The accuracy of the pre-sent model has been verified by comparing the current results with numerical and experimental data from the literature.Different mod-eling solutions have been developed,mixing one-,two-and threedimensional finite elements.The results show that the use of the present modeling technique allows the computational cost to be reduced with respect to the classical approaches preserving the ccuracy of the results in the critical areas.

关 键 词：Carrera Unified Formulation Embedded Sensor Health Monitoring Layered Structures Refined models 

分 类 号：O17[理学—数学]