Statistics-based baseline-free approach for rapid inspection of delamination in composite structures using ultrasonic guided waves

TL Jagadeeshwar, S Kalyani… - Structural Health …, 2022 - journals.sagepub.com
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 …

Outlier analysis for defect detection using sparse sampling in guided wave structural health monitoring

JL Tabjula, S Kanakambaran, S Kalyani… - … Control and Health …, 2021 - Wiley Online Library
We propose an outlier detection‐based statistical approach to identify and locate a defect in
composite plates using far fewer number of sensing points compared to conventional …

A nonlinear ultrasonic SHM method for impact damage localisation in composite panels using a sparse array of piezoelectric PZT transducers

C Andreades, GPM Fierro, M Meo - Ultrasonics, 2020 - Elsevier
Structural health monitoring techniques (SHM) for material damage identification have
demonstrated higher sensitivity and accuracy when relying on the assessment of nonlinear …

Guided wave propagation and scattering for structural health monitoring of stiffened composites

V Memmolo, E Monaco, ND Boffa, L Maio, F Ricci - Composite Structures, 2018 - Elsevier
Impact induced damages in stiffened composite structures are usually settled with
constrained design criteria and recurring maintenance tasks, that affect weight savings …

Visualization of hidden delamination and debonding in composites through noncontact laser ultrasonic scanning

B Park, YK An, H Sohn - Composites science and technology, 2014 - Elsevier
This study proposes a complete noncontact laser ultrasonic wavefield imaging technique to
automatically detect and visualize hidden delamination and debonding in composite …

Hybrid signal processing technique to improve the defect estimation in ultrasonic non-destructive testing of composite structures

KA Tiwari, R Raisutis, V Samaitis - Sensors, 2017 - mdpi.com
This work proposes a novel hybrid signal processing technique to extract information on
disbond-type defects from a single B-scan in the process of non-destructive testing (NDT) of …

Detection, localization and characterization of damage in plates with an in situ array of spatially distributed ultrasonic sensors

JE Michaels - Smart Materials and Structures, 2008 - iopscience.iop.org
Permanently attached piezoelectric sensors arranged in a spatially distributed array are
under consideration for structural health monitoring systems incorporating active ultrasonic …

A robust Bayesian methodology for damage localization in plate-like structures using ultrasonic guided-waves

S Cantero-Chinchilla, J Chiachío, M Chiachío… - … Systems and Signal …, 2019 - Elsevier
SHM methods for damage detection and localization in plate-like structures have typically
relied on signal post-processing techniques applied to ultrasonic guided-waves. The time of …

A novel damage index for damage identification using guided waves with application in laminated composites

S Torkamani, S Roy, ME Barkey… - Smart Materials and …, 2014 - iopscience.iop.org
In the current investigation, an innovative time-domain damage index is introduced for the
first time which is based on local statistical features of the waveform. This damage index is …

Damage identification for plate-like structures using ultrasonic guided wave based on improved MUSIC method

H Zuo, Z Yang, C Xu, S Tian, X Chen - Composite Structures, 2018 - Elsevier
The ultrasonic guided wave has emerged as one of the most prominent and promising tools
for metal and composite structures in the fields of structural health monitoring (SHM) and …