This article presents a comprehensive review of the laser-based guided ultrasonic waves
propagation imaging (G-UPI) system and respective signal/data processing methods related …

Understanding contact mechanics and adhesion processes in thin films and micro-
structured materials is fundamental in phonon and heat transport phenomena and is …

The paper presented a novel approach for characterization of defects based on laser
ultrasonic nondestructive testing. Both flat materials and curved materials are used as …

Extensive research has been conducted on zero-group-velocity (ZGV) Lamb waves in
elastic plates, demonstrating significant progress in the field of nondestructive testing …

Realistic structures with complex features have been intricate challenges for structural
health monitoring (SHM) with permanently installed transducers. Poor conformability of …

In the last decades, the use of structural adhesives has increased. Indeed, they are able to
replace advantageously traditional assembly techniques such as riveting or bolting, and …

In this paper, we present an experimental observation of the phenomenon known as zero-
group velocity (ZGV) combined harmonic generation, which is induced by the mixing of …

Different types of defects such as pores, porosity, cracks in different directions, have various
impact on the load bearing capacity and fatigue strength of metal components used in the …

This work aims at demonstrating the ability of an acoustic linear code to model the
propagation of a shock wave created by a laser impact over a metallic surface. In this …

Abstract Zero Group Velocity (ZGV) modes are peculiar guided waves that can exist in
elastic plates or cylinders, and have proved to be very sensitive tools in characterizing …