Ultrasonic Guided Wave Characterization and Inspection of Laminate Fiber-Reinforced Composite Plates

Глушков, Е. В.; Glushkova, Natalia; Eremin, Artem; Евдокимов, А. А.; Lammering, Rolf

doi:10.1007/978-3-319-26324-3_31

Cited by 3 publications

(4 citation statements)

References 9 publications

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“…This dataset will be helpful in the verification of numerical methods simulating wave propagation in composite materials. 9–16 This wave field data are also beneficial for the verification of image processing tools for acoustic wave field analysis and spectroscopy. 17–22 Section “Guided wave measurements part II: SHM measurements” presents the SHM measurements of the CFRP plate at constant temperature where a surface-mounted reversible defect model was placed at several positions on the structure.…”

Section: Introductionmentioning

confidence: 99%

Open Guided Waves: online platform for ultrasonic guided wave measurements

Moll

Kathol

Fritzen

et al. 2018

Structural Health Monitoring

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Ultrasonic guided waves have been used successfully in structural health monitoring systems to detect damage in isotropic and composite materials with simple and complex geometry. A limitation of current research is given by a lack of freely available benchmark measurements to comparatively evaluate existing methods. This article introduces the extendable online platform Open Guided Waves ( http://www.open-guided-waves.de ) where high-quality and well-documented datasets for guided wave-based inspections are provided. In this article, we describe quasi-isotropic carbon-fiber-reinforced polymer plates with embedded piezoelectric transducers as a first benchmark structure. Intentionally, this is a structure of medium complexity to enable many researchers to apply their methods. In a first step, ultrasound and X-ray measurements were acquired to verify pristine conditions. Next, mechanical testing was done to determine the stiffness tensor and sample density based on standard test procedures. Guided wave measurements were divided into two parts: first, acoustic wave fields were acquired for a broad range of frequencies by three-dimensional scanning laser Doppler vibrometry. Second, structural health monitoring measurements in the carbon-fiber-reinforced polymer plate were collected at constant temperature using a distributed transducer network and a surface-mounted reversible defect model. Initial results serving as validation are presented and discussed.

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Section: Introductionmentioning

confidence: 99%

Open Guided Waves: online platform for ultrasonic guided wave measurements

Moll

Kathol

Fritzen

et al. 2018

Structural Health Monitoring

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“…The goal of the inversion procedure is to find a set of lamina constants (𝐸 ) 2 𝑁 𝑖=1 (5) where 𝑑 is the discrepancy metric, 𝑐 𝑝,𝑝𝑟𝑒𝑑 (𝜔 𝑖 ) is the phase velocity spectrum from SAFE analysis, 𝑐 𝑝,𝑒𝑥𝑝 (𝜔 𝑖 ) is the phase velocity spectrum from experimental measurements, and 𝑁 is the number of samples in the spectrum. Simulated annealing (SA), as schematized in Fig.…”

Section: Simulated Annealing Algorithmmentioning

confidence: 99%

“…The property inversion convergence is shown in Fig. 4(c), with the horizontal axis denoting the error between the identified constants and the ground truth values, versus the vertical axis denoting the discrepancy metric 𝑑 as calculated in (5). The final identification results at the end of the FSA optimization procedure are marked by a star with a pointing arrow in each plot.…”

Section: Moduli Identification In Composite Panels 41 Proof-of-concep...mentioning

confidence: 99%

“…Due to these complexities, the majority use of guided wave has been focused on defect detection, with much fewer attention on lamina property identification. Known as an inverse problem, property identification using guided waves involves modeling the laminated waveguide and some optimization tasks to update the model parameters [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

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An ultrasonic scanning system for damage detection in composite built-up panels by inversion of guided wave dispersion curves

Huang

Dela-Cueva

Katko

et al. 2023

Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVII

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This paper proposes an ultrasonic scanning system for the inspection of stiffened composite panels used in modern aircraft construction. Conventional ultrasonic scanning systems usually track individual features of the propagating waves (e.g. amplitude, velocity, etc. at specific frequencies). The proposed scanning system, instead, is able to track the full dispersion curve across a significant frequency range, and, through an inversion process, to identify the elastic constants of the panel at each scanning position for an enhanced inspection. The proposed scanning system utilized a “single-input-dual-output" (SIDO) scheme whereby ultrasonic guided waves are excited by an impact and detected by two air-coupled ultrasonic sensors. At each scanning point, the system extracts the phase velocity dispersion curves of the panel via a phase spectral analysis of the measured waveforms. The measured dispersion curve is then fed to an inversion algorithm that identifies the composite engineering constants through an optimization loop. The Semi-Analytical Finite Element (SAFE) method is used as the forward model in the inversion procedure. Validation experiments were performed on a stiffened skin-to-stringer CFRP panel with impact-type damage present on the hat shape stringer cap. The system showed an ability to detect the internal damage with access only to the outer skin. The ability to track the elastic constants of the test part is quite relevant to the ultimate goal of determining the part residual strength using the ultrasound scanning system.

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Dynamic behaviour of piezoelectric sensors and their application in crack identification for SHM

Yu¹

2017

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Ultrasonic Guided Wave Characterization and Inspection of Laminate Fiber-Reinforced Composite Plates

Cited by 3 publications

References 9 publications

Open Guided Waves: online platform for ultrasonic guided wave measurements

Open Guided Waves: online platform for ultrasonic guided wave measurements

An ultrasonic scanning system for damage detection in composite built-up panels by inversion of guided wave dispersion curves

Dynamic behaviour of piezoelectric sensors and their application in crack identification for SHM

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