Nondestructive testing and evaluation (NDT&E) are commonly used in the industry for their
ability to identify damage and assess material conditions. Ultrasonic testing (UT) is one of …

There are some limitations when conventional ultrasonic testing methods are used for
testing early damage in metal parts. With the continuous development of acoustics and …

Research into the use of nonlinear ultrasonic guided waves for nondestructive evaluation is
expanding at a high rate because of the great potential benefit that they possess for early …

This paper experimentally investigates the early stage damage caused by the surface
corrosion in thin plates based on two nonlinear Lamb wave methods, which are the low …

Fatigue damage is difficult to detect and evaluate non-destructively, specifically at its early
stages (before the macro-crack formation). In this study, fatigue damage is evaluated based …

This paper presents a delamination damage detection technique based on the nonlinear
response of Lamb waves in composite laminates. In the approach, a network of transducers …

Nonlinear guided wave has been recognized as a potential means to characterize the state
of material microstructures in solids. However, nonlinear guided wave approaches based on …

Recently, the technique of nonlinear Lamb wave mixing has been developed for the
detection of fatigue crack in engineering structures. In this technique, two or three Lamb …

This paper reports an investigation on the use of Rayleigh wave mixing method for the
debonding detection in concrete structures strengthened with externally bonded fibre …

Many engineering structural elements make use of adhesively bonded joints due to its
lighter weight, load distribution and transmission mechanisms. The safety of the structure …