Advanced composite materials are prone to various types of damage during-manufacturing
and long-time service. Ultrasonic detection methods have been widely employed to detect …

Shear horizontal (SH) waves are of great importance in structural health monitoring (SHM)
and nondestructive testing (NDT), since the lowest order SH wave in isotropic plates is non …

For the monitoring of plate structures, phased array guided wave has great application
prospects to effectively determine damage location and size. Locating damage via phased …

This paper presented development work of an in situ method for damage detection in thin-
wall structures using embedded two-dimensional ultrasonic phased arrays. Piezoelectric …

The dispersion effect of Lamb waves can cause different degree of phase distortion of array
signals, which will make the classical multiple signal classification (MUSIC) algorithm no …

This paper presents a new crack size quantification method based on in-situ Lamb wave
testing and Bayesian method. The proposed method uses coupon test to develop a baseline …

Probability-based diagnostic imaging, as one of the damage identification methods using
ultrasonic guided waves, has been attracting increasing attention by researchers in the …

In this paper we propose a concept and report experimental results based on a circular array
of Piezoelectric Wafer Active Sensors (PWASs) for rapid localization and parametric …

Guided wave based structural health monitoring (SHM) has been regarded as an effective
tool to detect the early damage in large structures and thus avoid possible catastrophic …

Interdigital transducers (IDTs), thanks to their multiple capabilities have the potential of
increasing versatility of SHM systems. Migration of the IDT technology in SHM systems and …