Guided waves in a composite winglet structure: Numerical and experimental investigations

Luca, A. De; Perfetto, Donato; Fenza, Angelo De; Petrone, Giuseppe; Caputo, Francesco

doi:10.1016/j.compstruct.2018.11.048

Cited by 42 publications

(32 citation statements)

References 14 publications

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“…FOS sensors ensure a higher sensitivity to the detection of the debonding and monitoring of its propagation, while PZT sensors/actuators ensure a higher sensitivity to the impact damage detection. 15,16,21,25,43 Higher FOS spatial resolution, distributed very close to the debonding line ensures the possibility to measure a debonding, even of 1 mm. Moreover, the use of both the sensors for the damage detection could also ensure a redundancy of the system that is going to be the object of next activities.…”

Section: Shm System Architecture and Methodologymentioning

confidence: 99%

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Application of structural health monitoring techniques to composite wing panels

Romano

Ciminello

Sorrentino

et al. 2019

Journal of Composite Materials

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This detailed study proposes a structural health monitoring system which enables the identification, localisation, and correct measurement analysis, in relation to the damage and debonding induced by low energy impacts within aircraft composite wing panels. The said system has been envisaged as an offline system which aims to be considered as a valid alternative method in relation to the current first two maintenance approach levels: visual inspection, which is to be followed if necessary by ultrasonic scanning techniques. The architecture includes two different technologies which act at different frequency ranges: high-frequency sensors/actuators piezoceramics and low-frequency distributed fiber optic sensors. Experimental and numerical results on small stiffened panels are illustrated in this study, where technological verification and validation have been assessed within a laboratory-controlled environment. In addition, the potential benefit by utilising such techniques within the design of the aircraft composite structures has also been illustrated; in comparison with the current aircraft composite structures, a higher weight saving and better performing structures is foreseen.

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Section: Shm System Architecture and Methodologymentioning

confidence: 99%

“…The PZT system algorithm developed at CIRA is based on a triangulation analysis method based on the propagation of ultrasonic waves inside the structure (Lamb waves 11–15 ). Any discontinuity within the structure, if crossed by a wave, generates an additional wave representing the perturbation.…”

Section: Introductionmentioning

confidence: 99%

Application of structural health monitoring techniques to composite wing panels

Romano

Ciminello

Sorrentino

et al. 2019

Journal of Composite Materials

View full text Add to dashboard Cite

show abstract

“…The best principle of mesh generation is to transfer the minimum wavelength to 10 units [20]. To satisfy this principle, the mesh length is calculated as follows:Le≤λmin10=2.13 normalmm…”

Section: Identification and Imaging Of Double Crack Damage Based Omentioning

confidence: 99%

Double Crack Damage Identification of Welded Steel Structure Based on LAMB WAVES of S0 Mode

Sun

et al. 2019

Materials

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Steel structures are widely used in large-span bridges, offshore platforms, mining equipment and other large-scale buildings. The damage of steel structures will cause significant safety risks in a project. Therefore, it is of great significance to identify and study damage to steel structures. In this study, the propagation of Lamb waves in a steel plate with double cracks is simulated. Using finite element analysis and experimental study, damage identification and damage imaging of double crack damage to a steel plate are performed, and the numerical simulation results are in good agreement with the experimental results. Considering the reflection and transmission of Lamb waves at the welding seam, the location and imaging of crack damage in a welded steel plate are also studied. The imaging results obtained from simulation and experiment show high level in accuracy. By comparing the amplitude of the signal in the propagation process, it is concluded that the transmission energy at the weld seam decreases.

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“…GW is a kind of stress wave that can propagate along waveguides such as pipes and plate-like structures. Although many researchers applied the GW technique to detect the damage of composite panels and stiffened structures on delamination, fatigue damage, repair patch disbond, and internal damage of concrete structures using damage indicators or damage imaging [7,8,9,10,11,12,13,14,15,16,17,18,19,20,21], only a few studies aimed at lap joints to investigate their failure characteristics [1,2,3,4,22,23,24]. Nevertheless, when used for detecting complex structures, the scattering properties of GW are usually very complicated and difficult to analyze; thus, another active monitoring technique called EMI is taken into consideration.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of Fiber-Reinforced Composite Single-Lap Joint with Electromechanical Impedance of Piezoelectric Transducer

et al. 2019

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The single-lap joint of fiber-reinforced composites is a common structure in the field of structure repair, which has excellent mechanical properties. To study and monitor its quasi-static response behavior under external load, two methodologies called effective structural mechanical impedance (ESMI) and reduced-ESMI (R-ESMI) are presented in this article. A two-dimensional electromechanical impedance (EMI) model for a surface-bonded square piezoelectric transducer (PZT) is adopted to extract more sensitive signatures from the measured raw signatures. There are two major advantages of the monitoring scheme based on ESMI and R-ESMI signatures: (1) excellent monitoring results with less signatures to process, (2) the ability to monitor the quasi-static behavior of a single-lap joint with previously ignored susceptance signatures. Combining the extracted ESMI signatures with the index of root-mean-square deviation, the quasi-static behavior of single-lap joints can be effectively quantified. To test the effectiveness of ESMI methodology, verifying experiments were conducted. The experimental results convincingly demonstrated that the presented ESMI and R-ESMI methodologies have good feasibility in monitoring the quasi-static behavior of a fiber-reinforced composite single-lap joint. The proposed method has potential application in the field of structural health monitoring (SHM).

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Guided waves in a composite winglet structure: Numerical and experimental investigations

Cited by 42 publications

References 14 publications

Application of structural health monitoring techniques to composite wing panels

Application of structural health monitoring techniques to composite wing panels

Double Crack Damage Identification of Welded Steel Structure Based on LAMB WAVES of S0 Mode

Monitoring of Fiber-Reinforced Composite Single-Lap Joint with Electromechanical Impedance of Piezoelectric Transducer

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