The paper provides a state of the art review of guided wave based structural health
monitoring (SHM). First, the fundamental concepts of guided wave propagation and its …

In this paper, some recent piezoelectric wafer active sensors (PWAS) progress achieved in
our laboratory for active materials and smart structures (LAMSS) at the University of South …

Delamination in composite structures is characterized by a resonant cavity wherein a
fraction of an ultrasonic guided wave may be trapped. Based on this wave trapping …

This study proposes a complete noncontact laser ultrasonic wavefield imaging technique to
automatically detect and visualize hidden delamination and debonding in composite …

Ultrasonics is an NDT (Non-Destructive Testing) technique used to detect faults in structural
components by applying a set of techniques and classifying them accordingly. This paper …

Increase in the demand for reliable structural health information led to the development of
Structural Health Monitoring (SHM). Prediction of upcoming accidents and estimation of …

Carbon fibre composite laminates are increasingly being used for aerospace structures due
to their low weight and improved mechanical performance. Impact damage can cause …

Laminated composites are susceptible to delamination due to their weak transverse tensile
and interlaminar shear strengths as compared to their in-plane properties. Delamination …

This study presents a novel method for composite damage identification using Lamb wave.
A probabilistic integration of the elliptical loci method and the RAPID (reconstruction …

Composite laminate has extensive usage in the aerospace and automotive industries. Thus
delamination, one of its most prevalent and challenging failure modes, has attracted …