Stefano Coccia

TL;DR: A sensor diagnostics and validation process that performs in situ monitoring of the operational status of piezoelectric active-sensors in structural health monitoring (SHM) applications is presented in this article.

TL;DR: In this paper, the monitoring of the composite wing skin-to-spar joint in unmanned aerial vehicles using ultrasonic guided waves was investigated. But the authors focused on the ultrasonic strength of transmission through the joints.

TL;DR: A rail inspection prototype based on these concepts is under development at the University of California at San Diego (UCSD) and feature extraction and automatic pattern recognition algorithms that are being tested in the laboratory and will be added to the prototype as discussed by the authors.

TL;DR: In this paper, the health monitoring of fiber-reinforced composite panels using ultrasonic guided waves and flexible piezocomposite transducers in a changing temperature environment is discussed.

TL;DR: In this article, an analysis of the ultrasonic wave propagation in arbitrary cross-section waveguides such as rails, with application to ultrasonic inspection, is presented, which allows for the identification of certain wave modes potentially sensitive to specific types of rail head defects.