The guided Lamb wave is widely acknowledged as one of the most encouraging tools for
quantitative identification of damage in composite structures, and relevant research has …

Rock bolts have been widely used as rock reinforcing members in underground coal mine
roadways and tunnels. Failures of rock bolts occur as a result of overloading, corrosion …

Guided-wave (GW) approaches have shown potential in various initial laboratory
demonstrations as a solution to structural health monitoring (SHM) for damage prognosis …

The capability of embedded piezoelectric wafer active sensors (PWAS) to excite and detect
tuned Lamb waves for structural health monitoring is explored. First, a brief review of Lamb …

This work focuses on an ultrasonic guided wave structural health monitoring (SHM) system
development for aircraft wing inspection. In part I of the study, a detailed description of a real …

This paper presents experimental and theoretical analyses of the second harmonic
generation due to non-linear interaction of Lamb waves with a fatigue crack. Three …

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 …

Among the various schemes being considered for structural health monitoring (SHM),
guided wave (GW) testing in particular has shown great promise. While GW testing using …

In this paper we review the state of the art in an emerging new technology: embedded
ultrasonic non-destructive evaluation (NDE). Embedded ultrasonic NDE permits active …

The capability of embedded piezoelectric wafer active sensors (PWAS) to perform in-situ
nondestructive evaluation (NDE) is explored. Theoretical developments and laboratory tests …