Numerical simulation of the heat generation process at vibrating contact defects

Truyaert, Kevin; Delrue, Steven; Aleshin, Vladislav; Abeele, Koen Van Den

doi:10.21611/qirt.2018.088

Cited by 4 publications

(4 citation statements)

References 9 publications

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“…The coupled thermal-electrical-mechanical analysis concludes that friction and viscoelastic losses are the heat sources of crack defects. Interestingly, this point was well supported by the work of Truyaert et al [34]. They simulated the propagation of ultrasonic shear waves in the aluminum specimen and the heat generation from the crack interface.…”

Section: Introductionmentioning

confidence: 54%

Low-power vibrothermography detection technique for surface cracks on composite sucker rod

Liu¹,

Xu²,

Zhang³

et al. 2023

Smart Mater. Struct.

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Composite sucker rods are becoming increasingly popular in oil fields owing to their light weight and corrosion resistance. However, various defects may appear in the manufacturing and service of sucker rods. Unfortunately, research on defect detection is still insufficient for composite sucker rods. This study explores a surface crack detection technique for composite sucker rods based on low-power vibrothermography (LVT). First, an improved low-power piezoceramic actuator with a curved bottom is designed for rod-like structure. Second, the entire processes of LVT-based surface crack detection, including excitation signal generation, mechanical wave propagation, and heat generation at defects, are simulated and analyzed using the finite element method. The heat generation mechanism and characteristic at cracks are revealed by coupled thermo-electro-mechanical analysis. The superiority of the improved actuator is reflected by comparison with the conventional actuator. In addition, the simulation investigates the optimal excitation signal amplitude and circumferential angle between the actuator and the crack. Finally, a series of LVT detection experiments were conducted on a composite sucker rod with surface cracks, which not only proved the effectiveness of the LVT, but also validated the conclusions of the numerical simulations. The maximum temperature rise at the crack is 5.54 °C by using the improved actuator. Numerical simulation and experimental results demonstrate that the surface cracks of the composite sucker rod can be effectively detected using LVT with an improved piezoceramic actuator. This study provides a new direction for extending vibrothermography to the non-destructive testing of composite rod-like structures.

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Section: Introductionmentioning

confidence: 54%

Low-power vibrothermography detection technique for surface cracks on composite sucker rod

Liu¹,

Xu²,

Zhang³

et al. 2023

Smart Mater. Struct.

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“…They examined these mechanisms using experimental evidences, such as testing a samples including cracks and applying vibrations on the frequency range of 20–40 kHz. In 2018, Truyaert et al 24 studied generated heat in some samples using a numerical method. In this paper, it is shown that friction mechanism, will cause heat generation in different conditions of contact at the defect area.…”

Section: Introductionmentioning

confidence: 99%

Defect detection by laser shear interferometry based on the thermal response of materials with vibratory loading

Nasrabad

Akbari

Karfi

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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Laser shear interferometry or shearography is one of the optical and non-contact methods for measuring surface displacements. Shearography can be used in non-destructive testing by applying a kind of excitation such as partial vacuum, mechanical and thermal loadings. Parameters of the excitation techniques significantly affect the test results. In many cases, these loading methods deform the whole surface reducing the detection capability of the technique. This paper considers the vibratory loading method as an alternative to the previously mentioned standard methods. In this method, local heat is generated at the defected area due to the internal and external damping of the piece. A simulation has been conducted using COMSOL software to estimate the generated local heat due to the vibratory loading. The local temperature at the defect area is measured, and the simulation results are validated with an experimental infrared thermography test. The experimental shearography setup is adjusted, and the defects are detected. By comparing the results with those of typical thermal loadings, it has been shown that the fringe patterns obtained by the presented method have higher quality.

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“…The localized strain energy density around the defect and the resultant (normal and tangential) interaction of the defect's interfaces dissipate the vibrational energy as heat. Depending on the orientation, asperities and stress state of the defect, various heating mechanisms come into effect including: rubbing friction, adhesion hysteresis, viscoelastic damping, thermoelastic damping, and even plastic deformation at the crack tips [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Vibrothermographic spectroscopy with thermal latency compensation for effective identification of local defect resonance frequencies of a CFRP with BVID

Hedayatrasa

Segers

Poelman

et al. 2020

NDT & E International

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Numerical simulation of the heat generation process at vibrating contact defects

Cited by 4 publications

References 9 publications

Low-power vibrothermography detection technique for surface cracks on composite sucker rod

Low-power vibrothermography detection technique for surface cracks on composite sucker rod

Defect detection by laser shear interferometry based on the thermal response of materials with vibratory loading

Vibrothermographic spectroscopy with thermal latency compensation for effective identification of local defect resonance frequencies of a CFRP with BVID

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