The most common researched area of damage in a composite material such as carbon fibre
reinforced plastics (CFRP) used currently in aircraft construction is barely visible impact …

In this paper, an approach is presented to model the propagation of elastic waves and their
interaction with defects in plate structures. The formulation is based on the Scaled Boundary …

Guided wavefield analysis methods for detection and quantification of crack damage in an
aluminum plate are presented in this paper. New wavenumber components created by …

A three dimensional (3D) hybrid method combining the classical finite element (FE) method
with the semi-analytical finite element (SAFE) technique is developed. This hybrid method is …

Tomography imaging of defects using ultrasonic Lamb waves has attracted much attention
in nondestructive testing of plates. However, there are two challenges for robust localization …

Plate-like structures can be characterized by a variety of abrupt geometric changes affecting
the Lamb wave propagation, similarly to damage occurring in service. Therefore, a deep …

Ultrasonic Lamb waves are affected by structural discontinuities (eg stiffeners, ribs or joints),
and it is necessary to understand the quantitative characteristics of their influence on the …

In this paper we demonstrate a non-destructive, non-contact detection method for small
defects in thin polymer plates using an air coupled ultrasonic (ACUS) setup. There exist …

The interactions between ultrasonic waves and damage provide crucial information for
developing effective damage detection techniques in various fields, including non …

This paper addresses an analytical and experimental analysis based on the physics of the
Lamb wave propagation and interaction with the discontinuity. An analytical method called …