In this paper, some recent piezoelectric wafer active sensors (PWAS) progress achieved in
our laboratory for active materials and smart structures (LAMSS) at the University of South …

Elastic waves, especially guided waves, generated by a piezoelectric actuator/sensor
network, have shown great potential for on-line health monitoring of advanced aerospace …

The chapter deals with structural health monitoring (SHM) of aerospace composites. After a
brief introduction, the discussion focuses on the significant types of aerospace composite …

Aircraft smart skin technology requires the integration of large-scale, lightweight, and
integrative sensor networks with aircraft structural skin, but it is difficult to directly …

Laminated composites are susceptible to delamination due to their weak transverse tensile
and interlaminar shear strengths as compared to their in-plane properties. Delamination …

The temporal signal features of linear guided waves, as typified by the time-of-flight (ToF),
have been exploited intensively for identifying damage, with proven effectiveness in locating …

In this paper an optimal sensor placement algorithm for attaining the maximum area
coverage (MAC) within a sensor network is presented. The proposed novel approach takes …

The aim of this study is to identify disbond and high-density (HD) core region in a
honeycomb composite sandwich structure (HCSS) using ultrasonic guided waves (GWs) …

In this paper, a simple Fourier spectral-based method is proposed to calculate the modal
curvature (MC) of beams instead of the traditional central difference method. Based on the …

The spatial-wavenumber filtering technique is an effective approach to distinguish the
propagating direction and wave mode of Lamb wave in spatial-wavenumber domain …