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 …

It is crucial to detect and evaluate early material degradation caused by micro-cracks in key
engineering structures. This paper investigates the resonant behavior of one-way Lamb …

When an ultrasonic pulse propagates in a thin plate, nonlinear Lamb waves with higher
harmonics and a zero-frequency component (ZFC) will be generated because of the …

This article derives the solution to the guided wave fields in a double-layer plate consisting
of two sublayers. It is assumed that the two sublayers are linearly elastic. They are bonded …

This paper describes the use of a wave mixing technique to monitor thermal aging of
adhesive joints. This newly developed technique measures the acoustic nonlinearity …

This paper derives the resonance conditions for one-way resonant mixing of nonlinear Lamb
waves. Two mode triplets are identified that satisfy such resonance conditions. It is also …

This paper studies the interactions of two plane waves in elastic solids with quadratic
nonlinearity. In particular, the necessary and sufficient conditions for resonant mixing of two …

An ultrasonic evaluation method of interfacial bonding quality from layered structures is
proposed for enhancing the testing accuracy. The ultrasonic reflection and transmission …

Adhesive joints are extensive used in various industrial applications. Bonded quality is
crucial for ensuring structural integrity and safety. In this study, the nonlinear non-collinear …

Cyclic loading or other stresses can lead to development of cracks and crack growth in
mechanical structures, leading to eventual failure. While ultrasound imaging can be used for …