Interest in using the higher harmonic generation of ultrasonic guided wave modes for
nondestructive evaluation continues to grow tremendously as the understanding of …

This article investigates some important aspects of material behavior responsible for
acoustic nonlinearity. Even though the discussion is based on a specific constitutive model …

In this article, we present a new constitutive model for studying ultrasonic third harmonic
generation in elastic solids. The model is hyperelastic in nature with two parameters …

Finite element models with explicitly modelled mesoscale heterogeneity in material are
introduced to numerically investigate the correlation between the ultrasonic higher …

Non-cumulative higher and sub-harmonic Lamb wave mode generation as a result of partial-
debond of piezoelectric wafer transducers (PWT) bonded onto an Aluminium plate, is …

Current robotic systems often lack a deeper understanding of their surroundings, even if they
are equipped with visual sensors like RGB-D cameras. Knowledge of the mechanical …

We develop a thermodynamic framework for modeling nonlinear ultrasonic damage sensing
and prognosis in materials undergoing progressive damage. The framework is based on the …

Current robotic systems often lack a deeper understanding of their surroundings, even if they
are equipped with visual sensors like RGB-D cameras. Knowledge of the mechanical …

When ultrasonic waves propagate through media, the material nonlinearity triggers the
generation of higher-order harmonics (HOH), the frequency of which are integer multiples of …

Guided wave mode selection, which considers the application, structure, material properties
and geometry, is crucial for defect detection and characterization. This requires …