title: Damage Detection Based on Power Dissipation Measured with PZT Sensors through the Combination of Electro-Mechanical Impedances and Guided Waves.
abstract: The use of piezoelectric ceramic transducers (such as Lead-Zirconate-Titanate-PZT) has become more and more widespread for Structural Health Monitoring (SHM) applications. Among all the techniques that are based on this smart sensing solution, guided waves and electro-mechanical impedance techniques have found wider acceptance, and so more studies and experimental works can be found containing these applications. However, even though these two techniques can be considered as complementary to each other, little work can be found focused on the combination of them in order to define a new and integrated damage detection procedure. In this work, this combination of techniques has been studied by proposing a new integrated damage indicator based on Electro-Mechanical Power Dissipation (EMPD). The applicability of this proposed technique has been tested through different experimental tests, with both lab-scale and real-scale structures.
authors.affiliation: Department of Structural Mechanics, Technical University of Madrid, C/ José Gutiérrez Abascal, 2, Madrid 28006, Spain. enrique.sevillano@upm.es.
authors.forename: Enrique
authors.initials: E
authors.lastname: Sevillano
authors.affiliation: Department of Structural Mechanics, Technical University of Madrid, C/ José Gutiérrez Abascal, 2, Madrid 28006, Spain. rui.sun@alumnos.upm.es.
authors.forename: Rui
authors.initials: R
authors.lastname: Sun
authors.affiliation: Department of Structural Mechanics, Technical University of Madrid, C/ José Gutiérrez Abascal, 2, Madrid 28006, Spain. ricardo.perera@upm.es.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Perera
keywords: PZT sensors; electro-mechanical impedance; electro-mechanical power dissipation; guided wave; non-destructive testing; structural health monitoring