Ultrasonic testing of thin walled components made of aluminum based laminates

Adamus, K.; Adamus, J.; Lacki, J.

doi:10.1016/j.compstruct.2017.12.007

Cited by 27 publications

(9 citation statements)

References 32 publications

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“…The conventional technique to detect the internal damages inside structures is non-destructive testing (NDT). The typical damage detecting methods of NDT include visual inspection [1,2], ultrasonic testing (UT) [3], eddy current testing (ECT) [4], penetrant testing (PT) [5] etc. Despite the NDT techniques having been widely applied in some industrial cases, most of them are usually performed off-line [6].…”

Section: Introductionmentioning

confidence: 99%

Health Monitoring of Metallic Structures with Electromechanical Impedance and Piezoelectric Sensors

2019

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In order to monitor the health condition of structures in a more sensitive and accurate way, a novel and universal methodology called direct coupling mechanical impedance (DCMI) for characteristic signatures extraction is presented in this paper. This methodology is used to obtain DCMI signatures from measured raw signatures (RSs) with the surface-bonded piezoelectric sensors (PZT), which is developed from a pertinent electromechanical impedance (EMI) theoretical model for surface-bonded circular PZT. The proposed DCMI methodology has the advantages of simple calculation and magnifying the signatures when compared with the existing methods. Combining the extracted DCMI signatures with the root mean square deviation (RMSD) index is able to quantify the correlation between the health condition and the signatures variation more effectively. To verify the effectiveness of proposed DCMI methodology, experiments are conducted on aluminum plates and a part of fuselage in detail. The experimental results sufficiently demonstrate that the presented universal DCMI methodology possesses better sensitivity than the raw signatures when utilized for evaluating the health condition of metallic structures, including those made of metal-matrix nanomaterials.

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Section: Introductionmentioning

confidence: 99%

Health Monitoring of Metallic Structures with Electromechanical Impedance and Piezoelectric Sensors

2019

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“…With a frequency greater than or equal to 20kHz, ultrasonic sound waves are widely used for cleaning [7], welding [8], and nondestructive testing [9]. Related studies have shown that ultrasonic vibration can produce seam filling, moistening, and bubble removal effects.…”

Section: Introductionmentioning

confidence: 99%

Study on Effect of Ultrasonic Vibration on Adhesive-film Bonding of Al/CFRP Alloy Joints

Wang,

Zhang,

Chen

et al. 2023

J. Phys.: Conf. Ser.

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The adhesive film is solid at room temperature, and it is difficult to ensure the adhesion of the adhesive film to the adhered plate during the bonding process, resulting in poor bonding quality and difficult bonding quality control. Due to the need to solve this problem, this study proposed ultrasonic to improve the bonding quality. The ultrasonic mechanism to strengthen the adhesive-film bonded of AL/CFRP (carbon fiber reinforced composites) joints was investigated. The ultrasonic vibration was applied to the bonding area after the adhesive film was attached. A double-lap shear plate test revealed a 59.6% increase in bond strength and a 34.2% increase in bond quality stability. By analyzing the temperature and viscosity of the adhesive film after ultrasonic and observing the surface morphology of the cured joint, it was found that ultrasonic could reduce the film viscosity and improve the adhesive film fluidity. At the same time, the adhesive film was promoted to fill the irregular micro pits on the adherend surface, enhancing the mechanical anchoring effect between the adhesive and the adhered plate and thus improving the bonding quality.

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“…into four categories: radiographic testing, ultrasonic testing, penetrant testing, and eddy current testing, but each has its own limitations. For example, radiographic inspection [1,2] cannot locate the depth of defects and the radiographic rays used are harmful to human bodies; ultrasonic inspection [3,4] is prone to leakage and the signal-to-noise ratio of defects is low when non-contact methods are used; eddy current inspection [5,6] is hampered by the skin effect, making it difficult to detect defects deep within the body; and the limited intelligence and reliability of penetration testing [7] make quantitative control of inspection quality difficult to achieve. As a result, new testing methods need to be developed.…”

Section: Introductionmentioning

confidence: 99%

A new magneto-acousto-electrical detection method for defects in high conductivity non-ferromagnetic materials

Yan¹,

Xu²,

Lv³

et al. 2022

J. Phys. D: Appl. Phys.

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In order to further enrich the non-destructive detection methods for defects in high conductivity non-ferromagnetic materials, a new method of magneto-acousto-electrical (MAE) defect detection method is proposed. First, a mathematical model of MAE multi-physical field coupling with coil induction was established. Then, a geometric model of the object to be tested was constructed, and the simulation software COMSOL was used to solve the physical process of MAE defect detection. Two-dimensional distributions of mass point vibration velocity, current density of the coil's cross-section and one-dimensional curves of material vibration velocity surface integral, local current, and induced voltage as a function of time, were obtained for various defect widths, defect shapes, and materials. The simulation result shows that the induction coil voltage pulse contains abundant information about the defect boundary information and the detection accuracy reaches 0.1 mm. Finally, experiments on MAE defect detection were carried out to prove the feasibility of the method. The research demonstrates a reliable method for the detection of internal defects in non-ferromagnetic materials with high electrical conductivity, such as aerospace and railways.

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Ultrasonic testing of thin walled components made of aluminum based laminates

Cited by 27 publications

References 32 publications

Health Monitoring of Metallic Structures with Electromechanical Impedance and Piezoelectric Sensors

Health Monitoring of Metallic Structures with Electromechanical Impedance and Piezoelectric Sensors

Study on Effect of Ultrasonic Vibration on Adhesive-film Bonding of Al/CFRP Alloy Joints

A new magneto-acousto-electrical detection method for defects in high conductivity non-ferromagnetic materials

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