Nonlinear features of ultrasonic guided waves (GWs) is studied for debonding detection and
location estimation in rebar reinforced concrete structure. The study shows that the presence …

In engineering structures, metal materials always endure fatigue cracks under long-term
service. There has been a demand for developing a structural health monitoring method to …

Simultaneous presence of multiple fatigue cracks in the same structural element is a critical
problem affecting system safety. However, initiation and growth of these cracks is affected by …

A numerical study including a fatigue crack trajectory simulation was undertaken by means
of separating morphing and adaptive remeshing technology (SMART) Crack Growth in …

The sensitivity of ultrasonic wave interactions to material and geometric nonlinearities
makes them very useful for nondestructive characterization. The ability of guided waves to …

This article presents a Nonlinear Electro-Mechanical Impedance Spectroscopy (NEMIS)
methodology for fatigue crack monitoring. Different from the conventional Electro …

This article presents the investigation of nonlinear scattering features of guided waves from
rivet hole nucleated fatigue cracks considering the rough contact surface condition. A small …

Wideband laser-generated Rayleigh waves have been extensively exploited for surface
crack characterization, most of which, nonetheless, are of a nature of either numerical …

This article presents an efficient numerical approach to the investigation of nonlinear
scattering and mode conversion phenomena of Lamb waves as they interact with breathing …

This article presents an improved nonlinear ultrasonic technique for fatigue damage
detection utilizing a kind of carefully designed aluminum-lead composite metamaterial. It …