Recently, there has been a growing interest in deploying smart materials as sensing
components of structural health monitoring systems. In this arena, piezoelectric materials …

The article presents a literature review of electromechanical impedance spectroscopy for
structural health monitoring, with emphasis in adhesively bonded joints. The concept behind …

This study presents a fatigue crack detection technique using nonlinear ultrasonic wave
modulation. Ultrasonic waves at two distinctive driving frequencies are generated and …

This article presents the investigation of a nonlinear Lamb wave time reversing technique for
fatigue crack detection and quantification. A 2D analytical framework is initially presented …

Aircraft smart skin technology requires the integration of large-scale, lightweight, and
integrative sensor networks with aircraft structural skin, but it is difficult to directly …

This study presents a reference-free fatigue crack detection technique using nonlinear
ultrasonic modulation. When low frequency (LF) and high frequency (HF) inputs generated …

The Lamb wave time reversal method has widely been investigated as a baseline-free
damage detection technique for structural health monitoring. Due to the mode tuning effects …

This paper reviews progress in acoustic emission (AE) research and its applications to high
performance composite materials and structures. The achievement and inadequacy in …

The sensitivity of Lamb wave modes to a particular defect or instance of damage is
dependent on various factors (eg, the local strain energy density due to that wave mode). As …

Carbon fiber reinforced polymer (CFRP) could be damaged by low-velocity impacts. Precise
localization of impact can increase the efficiency of nondestructive testing by narrowing the …