Phased array techniques for damage detection in aerospace structures

Yu, L.; Tian, Zhenhua

doi:10.1016/b978-0-08-100148-6.00010-x

Cited by 9 publications

(3 citation statements)

References 75 publications

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“…The energy leakage of the side lobe and grating lobe is the main reason for the low angular resolution, and, to a large extent, the array parameters affect the array beam directivity, where the topology is an important factor affecting the array performance [ 83 ]. With the high designability of the measuring points, the damage resolution can be improved by optimizing the array parameters.…”

Section: Detection Methods Based On the Small Amount Of Wavefield Datamentioning

confidence: 99%

A Review of Laser Ultrasonic Lamb Wave Damage Detection Methods for Thin-Walled Structures

Zheng

Luo

et al. 2023

Sensors

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Thin-walled structures, like aircraft skins and ship shells, are often several meters in size but only a few millimeters thick. By utilizing the laser ultrasonic Lamb wave detection method (LU-LDM), signals can be detected over long distances without physical contact. Additionally, this technology offers excellent flexibility in designing the measurement point distribution. The characteristics of LU-LDM are first analyzed in this review, specifically in terms of laser ultrasound and hardware configuration. Next, the methods are categorized based on three criteria: the quantity of collected wavefield data, the spectral domain, and the distribution of measurement points. The advantages and disadvantages of multiple methods are compared, and the suitable conditions for each method are summarized. Thirdly, we summarize four combined methods that balance detection efficiency and accuracy. Finally, several future development trends are suggested, and the current gaps and shortcomings in LU-LDM are highlighted. This review builds a comprehensive framework for LU-LDM for the first time, which is expected to serve as a technical reference for applying this technology in large, thin-walled structures.

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Section: Detection Methods Based On the Small Amount Of Wavefield Datamentioning

confidence: 99%

A Review of Laser Ultrasonic Lamb Wave Damage Detection Methods for Thin-Walled Structures

Zheng

Luo

et al. 2023

Sensors

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“…A non-exhaustive list of techniques relevant to detecting in-service damages in aerospace composite structures includes vibration methods, 17,18 guided waves, 19,20 phased array ultrasonic, 21 acoustic emissions, 22,23 strain based methods by fibre optic sensors, 24,25 Electromechanical impedance (EMI) 26 and electrical impedance tomography. 27,28…”

Section: Introductionmentioning

confidence: 99%

Monitoring of thermoplastic induction welding defects. Use of electromagnetic properties as a predictive tool

Mazzeschi

Núñez

Cañibano

et al. 2022

Structural Health Monitoring

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The health of thermoplastic induction welded joints was evaluated by monitoring the electromagnetic response to a time variant magnetic field through a local measurement of the attenuated and reflected field. For this purpose, a numerical model was developed to study how the joint interface affects this response in the presence and absence of a delamination and as a function of the electromagnetic characteristics of a susceptor. Using a single loop coil geometry as local magnetic field excitation and measurement, the frequency range at which the highest damage detection sensitivity occurs has been identified for different sizes of a delamination in the bond line. It has been found that the presence of a susceptor reduces the capability of damage detection for the considered values of electromagnetic properties. The obtained results are the starting point for further research activities aimed at developing an electromagnetically based sensitive layer for monitoring the health of thermoplastic joints, capable of detecting and quantifying joint damage and assessing residual fatigue life.

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“…Guided waves are widely used for on-site or laboratory testing and the inspection of composite structures [ 16 , 17 ], as well as for the detection of crack initiation and growth in metallic structures of airplanes [ 18 ]. However, this method usually requires, a specific arrangement of the sensor array [ 19 ] and there are significant challenges in terms of the respective signal processing and extraction. In fact, the detection of real-world degradation initiated by microscopic defects requires the extraction of complex nonlinear features of the waves, hence increasing significantly the processing time [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting Technologies for Structural Health Monitoring of Airplane Components—A Review

Zelenika

Hadaš

Bader

et al. 2020

Sensors

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With the aim of increasing the efficiency of maintenance and fuel usage in airplanes, structural health monitoring (SHM) of critical composite structures is increasingly expected and required. The optimized usage of this concept is subject of intensive work in the framework of the EU COST Action CA18203 “Optimising Design for Inspection” (ODIN). In this context, a thorough review of a broad range of energy harvesting (EH) technologies to be potentially used as power sources for the acoustic emission and guided wave propagation sensors of the considered SHM systems, as well as for the respective data elaboration and wireless communication modules, is provided in this work. EH devices based on the usage of kinetic energy, thermal gradients, solar radiation, airflow, and other viable energy sources, proposed so far in the literature, are thus described with a critical review of the respective specific power levels, of their potential placement on airplanes, as well as the consequently necessary power management architectures. The guidelines provided for the selection of the most appropriate EH and power management technologies create the preconditions to develop a new class of autonomous sensor nodes for the in-process, non-destructive SHM of airplane components.

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Phased array techniques for damage detection in aerospace structures

Cited by 9 publications

References 75 publications

A Review of Laser Ultrasonic Lamb Wave Damage Detection Methods for Thin-Walled Structures

A Review of Laser Ultrasonic Lamb Wave Damage Detection Methods for Thin-Walled Structures

Monitoring of thermoplastic induction welding defects. Use of electromagnetic properties as a predictive tool

Energy Harvesting Technologies for Structural Health Monitoring of Airplane Components—A Review

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