Prevailing fatigue damage evaluation approaches that make use of the acoustic nonlinearity
of guided ultrasonic waves (GUWs) are sustained by simplified models, most of which depict …

Recent advancements in fiber optic methods have enabled their use for guided wave
sensing. It opens up new possibilities for Structural Health Monitoring. The aim of this paper …

The large cutout structure is a key component in the bottom skin of an airplane wing, and is
susceptible to developing fatigue cracks under service loads. Early fatigue crack detection is …

Under complicated fatigue loading conditions, cracks initiate nd grow in the arbitrary
direction from corrosion pits in the aerospace equipment. The monitoring of crack …

In the present study frequency dependent effective spring boundary conditions are
formulated to simulate wave propagation through an interface with distributions of micro …

This paper deals with the introduction of a spectral-element method, in the time domain, to
address problems of ultrasonic wave propagation in the field of the nondestructive ultrasonic …

The second-harmonic generation of the fundamental antisymmetric Lamb wave at a closed
parallel crack in an elastic plate is studied by numerical analysis. The closed crack is …

Ultrasonic phased array is widely used for damage detection recently because of its high
sensitivity and rapid scanning without sensor movements. However, the measured signal is …

In the present study frequency-dependent effective spring boundary conditions are
introduced to describe wave propagation through an interface between two elastic isotropic …

Chemical pressure storage tanks are containers designed to store fluids at high pressures,
ie, their internal pressure is higher than the atmospheric pressure. They can come in various …