Journal ArticleDOI
Rapid guided wave inspection of complex stiffened composite structural components using non-contact air-coupled ultrasound
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TLDR
In this article, the authors demonstrate a rapid, fully non-contact inspection technique for a full-scale complex composite structural component using air-coupled ultrasonic guided waves.About:
This article is published in Composite Structures.The article was published on 2018-12-15. It has received 34 citations till now. The article focuses on the topics: Guided wave testing & Ultrasonic sensor.read more
Citations
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Journal ArticleDOI
A Review of Electric Impedance Matching Techniques for Piezoelectric Sensors, Actuators and Transducers
TL;DR: In this article, the authors reviewed the techniques available for matching the electric impedance of piezoelectric sensors, actuators, and transducers with their accessories like amplifiers, cables, power supply, receiver electronics and power storage.
Journal ArticleDOI
Outlier analysis for defect detection using sparse sampling in guided wave structural health monitoring
Jagadeeshwar L. Tabjula,Srijith Kanakambaran,Sheetal Kalyani,Prabhu Rajagopal,Balaji Srinivasan +4 more
TL;DR: The feasibility of detection of delamination is experimentally demonstrated, whose size is comparable to the ultrasonic wavelength with probability of detection better than 90% using <1% of the total number of samples required for conventional imaging, even under conditions wherein the SNR is as low as 5 dB.
Journal ArticleDOI
Statistics-based baseline-free approach for rapid inspection of delamination in composite structures using ultrasonic guided waves
TL;DR: In this article , a baseline-free statistical approach for the identification and localization of delamination using sparse sampling and density-based spatial clustering of applications with noise (DBSCAN) technique is proposed.
Journal ArticleDOI
Ultrasonic non-destructive testing of complex titanium/carbon fibre composite joints.
TL;DR: A novel signal post-processing algorithm for reconstruction of the joint area was developed and validated experimentally and it is shown that using the proposed technique the positions of different defects can be determined.
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Detection and monitoring of delamination in composite laminates using ultrasonic guided wave
TL;DR: In this paper, the authors detected and monitored the delamination of composite double cantilever beams (DCBs) using ultrasonic guided wave and found that the occurrence time and duration of high-order harmonics are related to the length of delamination.
References
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Journal ArticleDOI
Guided Lamb waves for identification of damage in composite structures: A review
Zhongqing Su,Lin Ye,Ye Lu +2 more
TL;DR: A comprehensive review on the state of the art of Lamb wave-based damage identification approaches for composite structures, addressing the advances and achievements in these techniques in the past decades, is provided in this paper.
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Review of guided-wave structural health monitoring
TL;DR: This paper begins with an overview of damage prognosis, and a description of the basic methodology of guided-wave SHM, then reviews developments from the open literature in various aspects of this truly multidisciplinary field.
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Guided wave based structural health monitoring: A review
TL;DR: In this paper, the authors provide a state-of-the-art review of guided wave based structural health monitoring (SHM) and highlight the future directions and open areas of research in guided wave-based SHM.
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Health monitoring of aerospace composite structures – Active and passive approach
TL;DR: In this paper, an active and passive approach for impact damage detection in composite materials is presented, where the active approach is usually based on various non-destructive techniques utilizing actuators and/or receivers, while the passive approach does not involve any actuators; receivers are used to sense and or hear any perturbations caused by possible hidden damage.
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The generation, propagation, and detection of Lamb waves in plates using air‐coupled ultrasonic transducers
Michel Castaings,Peter Cawley +1 more
TL;DR: A finite element study of the generation of Lamb waves in plates from a finite air coupled transducer, the interaction of these waves with defects, and their detection using an air coupled receiver is described in this article, where the use of an ideal collimated beam in the model, instead of using the real pressure field generated by the transducers, is demonstrated to have negligible effect on the predicted Lamb waves.