Inspection of adhesively bonded metallic plates, commonly used in aircraft structures,
remains challenging for modern non-destructive testing (NDT) techniques. When a probing …

Zero-group velocity (ZGV) modes in rails are studied through simulation and experiments in
this work. Local resonances associated with ZGV modes appear as distinct, sharp peaks in …

Driven by the rapid advancement in manufacturing technologies, engineering structures with
complex geometries are increasingly applied in various industries, posing challenges to the …

Residual stress and its distribution are the key indicators to ensure structural integrity.
However, current ultrasonic methods are not appropriate for complex stress measurement …

We propose a method for nondestructive characterization of progressive fatigue damage in
solid plates, using a zero-group-velocity (ZGV) Lamb mode generated and detected by …

In this paper, a non-contact non-destructive evaluation of cumulative fatigue damage in 75 μ
m-thick aluminum plates is conducted by using the first symmetric zero-group-velocity Lamb …

A laser ultrasonic method is proposed for the nondestructive evaluation (NDE) of structural
adhesive bonding. Zero-group-velocity (ZGV) resonances were generated and detected in …

A new method for detecting the forward and backward acoustic waves in the piezoelectric
plates by using a system of the acoustically isolated interdigital transducers (IDT) with the …

Abstract Zero-Group-Velocity (ZGV) guided mode has recently received particular attention
because of its highly sensitive to structural changes, such as defects. Parallel to ZGV, in the …

Lamb modes with zero group velocity at nonzero wave numbers correspond to local and
stationary resonances in isotropic plates. Lamb modes can be utilized for nondestructive …