Ultrasonic vibrothermography using low-power actuators: An impact damage detection case study

Lamboul, B.; Passilly, F.; Roche, Jean‐Michel; Balageas, D.

doi:10.1063/1.4914626

Cited by 7 publications

(4 citation statements)

References 15 publications

(18 reference statements)

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“…Surface cracked and uncracked shafts were subjected to excitation using a low-power ultrasonic cleaning transducer. The application of a low-power ultrasonic cleaning transducer as an excitation source for VT has been previously published (40)(41)(42). Cracks can propagate when applied force exceeds the resistance of the material, resulting in the release of stored energy (43).…”

Section: Computational Study Of Surface Cracked and Uncracked Shaft O...mentioning

confidence: 99%

Development of Temperature-strain Prediction Based on Deformation-induced Heating Mechanism in SCM440 Surface Cracked Shaft under Ultrasonic Excitation

Lap-Arparat,

Tuchinda

2024

IJE

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The mechanisms behind temperature and material deformation in vibrothermography remain questionable, presenting a gap in understanding. This study investigates the deformation-induced mechanism, focusing solely on the heat generation associated with strain development. Both experimental and simulation approaches are incorporated. The experimental segment explores the temperature-strain relationship of SCM440 material, commonly used for rotating shafts. This behavior is examined through the connection between temperature change and material deformation during a uniaxial tensile test. Results indicate that temperature change and distribution can be predicted based on plastic strain development. Finite Element Method (FEM) simulation is utilized to model the excitation of a shaft with and without an elliptic surface crack. Various cracked shaft configurations are investigated, revealing distinct strain generation and distribution patterns. High strain alteration is notably observed around the crack tips, enabling the detection of shaft discontinuity. Consequently, a temperature prediction technique is developed to estimate temperature based on strain alteration during deformation. Adequate excitation power and the use of a high-sensitivity IR camera are recommended for the effective application of the temperature prediction technique. Additionally, this study provides insights into understanding the utility and limitations of vibrothermography for inspecting engineering component damage based on experimental temperature-strain relationships and computational predictions of strain distribution in cracked shafts under excitation. These findings offer guidance for engineering applications and future research endeavors.

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Section: Computational Study Of Surface Cracked and Uncracked Shaft O...mentioning

confidence: 99%

Development of Temperature-strain Prediction Based on Deformation-induced Heating Mechanism in SCM440 Surface Cracked Shaft under Ultrasonic Excitation

Lap-Arparat,

Tuchinda

2024

IJE

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“…There are a few reported works on vibrothermography with low-power actuator, but most of them focus on composite sample rather than metal parts. Balageas et al [ 40 ] utilized an adhesive bonded piezoelectric disc to perform lock-in detection on a carbon fiber reinforced polymer (CFRP) plate. The results showed the effectiveness of the detection based on low-power piezoelectric disks depends on the optimization of the exciter parameters, such as the excitation frequency, the modulation frequency, and the amplitude.…”

Section: Brief Literature Reviewmentioning

confidence: 99%

Experimental Investigation on the Detection of Multiple Surface Cracks Using Vibrothermography with a Low-Power Piezoceramic Actuator

Xie

Zhang

et al. 2017

Sensors

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Vibrothermography often employs a high-power actuator to generate heat on a specimen to reveal damage, however, the high-power actuator brings inconvenience to the application and possibly introduces additional damage to the inspected objects. This study uses a low-power piezoceramic transducer as the actuator of vibrothermography and explores its ability to detect multiple surface cracks in a metal part. Experiments were conducted on a thin aluminum beam with three cracks in different orientations. Detailed analyses of both thermograms and temperature data are presented to validate the proposed vibrothermography method. To further investigate the performance of the proposed vibrothermography method, we experimentally studied the effects of several critical factors, including the amplitude of excitation signal, specimen constraints, relative position between the transducer and cracks (the transducer is mounted on the same or the opposite side with the cracks). The results demonstrate that all cracks can be detected conveniently and simultaneously by using the proposed low-power vibrothermography. We also found that the magnitude of excitation signal and the specimen constraints have a great influence on detection results. Combined with effective data processing methods, such as Fourier transformation employed in this study, the proposed method provides a promising potential to detect multiple cracks on a metal surface in a safe and effective manner.

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“…As a result, several experimental studies utilized a low-power actuator for VT detection, which is called low-power vibrothermography (LVT). Lamboul et al [28] investigated the impact damage detection in carbon/epoxy composite panels using a lock-in VT with the low-power piezoceramic disc. Hedayatrasa et al [29] presented a stand-alone vibrothermographic spectroscopy procedure for LVT detection.…”

Section: Introductionmentioning

confidence: 99%

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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Ultrasonic vibrothermography using low-power actuators: An impact damage detection case study

Cited by 7 publications

References 15 publications

Development of Temperature-strain Prediction Based on Deformation-induced Heating Mechanism in SCM440 Surface Cracked Shaft under Ultrasonic Excitation

Development of Temperature-strain Prediction Based on Deformation-induced Heating Mechanism in SCM440 Surface Cracked Shaft under Ultrasonic Excitation

Experimental Investigation on the Detection of Multiple Surface Cracks Using Vibrothermography with a Low-Power Piezoceramic Actuator

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

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