Acoustical methods have been widely used for almost 30 years for flaw detection,
visualization, and local parameter measurement of different materials. Acoustical techniques …

Ultrasonic guided waves in solid media have become a critically important subject in
nondestructive testing and structural health monitoring, as new faster, more sensitive, and …

Research into ultrasonic NDE techniques for the inspection of multilayered structures relies
strongly on the use of modeling tools which calculate dispersion curves and reflection and …

Ultrasonic guided wave inspection is expanding rapidly to many different areas of
manufacturing and in-service inspection. The purpose of this paper is to provide a vision of …

Abstract Shear-Horizontally (SH) polarized, ultrasonic, guided wave modes are considered
in order to infer changes in the adhesive properties at several interfaces located within an …

This research combines laser ultrasonic techniques with the two-dimensional Fourier
transform (2D-FFT) to characterize adhesive bond properties. The experimental procedure …

The role of plate waves in the inspection of adhesive and diffusion bonded joints is
examined. This involves a review of the modal techniques which have been proposed for …

The monitoring of adhesively bonded joints by ultrasonic guided waves is the general topic
of this paper. Specifically, composite-to-composite joints representative of the wing skin-to …

An experimental method based on the nonlinear ultrasonic technique is presented to
evaluate fatigue damage of an adhesive joint. In this paper, specimens made from AZ31 …

The objective of this research is to use analytical and computational models to develop a
quantitative understanding of the propagation of guided Lamb waves in multi-layered …