The development of structural health monitoring (SHM) techniques is of great importance to
improve the structural efficiency and safety. With advantages of long propagation distances …

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 …

We report on the experimental observation of topologically protected edge waves in a two-
dimensional elastic hexagonal lattice. The lattice is designed to feature K-point Dirac cones …

Delaminations in composite laminates resulting from impact events may be accompanied by
minimal indication of damage at the surface. As such, inspections are required to ensure …

This paper presents an automated crack visualization technique using ultrasonic wavefield
images obtained by a complete noncontact laser scanning system. First, the complete …

We provide experimental evidence of the existence of a locally resonant sonic band gap in a
two-dimensional stubbed plate. Structures consisting of a periodic arrangement of silicone …

This research is related to a signal processing of full wavefield data as an effective tool for
detection, localization and visualization of a crack growth in thin-walled structures. Full …

We show experimentally that plate-type acoustic metamaterials can serve to totally prohibit
low frequency structure-borne sound at selective resonance frequencies ranging from 650 to …

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

This paper aims to provide an overview of the experimental and simulation works focused
on the detection, localisation and assessment of various defects in pipes by applying fast …