Ultrasonic C-scan detection research for effective connection area of arc-stud-weld joints

Dong, Jun; Xu, Guangchen; Wei, Lingbo; Fan, Guoquan; Gu, Xiaopeng

doi:10.1007/s00170-019-04118-x

Cited by 6 publications

(1 citation statement)

References 27 publications

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“…Timely identification and damage diagnosis are essential for ensuring the regular operation of equipment and the routine application of infrastructure [6,7]. The current technology is mainly nondestructive testing (NDT), including visual inspection [8,9], c-scan [10,11], eddy current testing [12], and penetrant testing [13,14]. These technologies are either labor-intensive, require expensive facilities and skilled operators, or are inaccurate due to environmental factors such as measurement noise, which limits the development of NDT.…”

Section: Introductionmentioning

confidence: 99%

Research on bolt looseness monitoring based on electromechanical impedance transmissibility technology

Guo

et al. 2023

Smart Mater. Struct.

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Centralized damage, such as bolt looseness, is one of the most common types of damage in bridge structures. Thus, early detection of such damage is essential for bridge maintenance. Detection methods based on transmittance functions (TFs) have been widely studied. These functions use a T matrix to calculate damage indicators and reflect changes in dynamic parameters, such as natural structural frequencies. However, existing research has shown that the excitation position significantly impacts the T matrix. Therefore, this study proposes a new method based on electromechanical impedance (EMI) for local damage characterization, namely, EMI-TF. A series of comparative tests shows that the EMI-TF process is more sensitive and accurate than the traditional TFs. In addition, the sensitivity of the EMI-TF and EMI methods is compared. Results show that using EMI-TF technology can achieve the localization of minor damage at lower frequencies, which, to some extent, overcomes the limitations of the traditional EMI method that can only detect minor damage at high frequencies. The repeatability of EMI-TF is also studied separately in experiments, with 10 repeated experiments conducted. Results show that the experimental results of EMI-TF have high repeatability.

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Section: Introductionmentioning

confidence: 99%

Research on bolt looseness monitoring based on electromechanical impedance transmissibility technology

Guo

et al. 2023

Smart Mater. Struct.

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Welding quality evaluation for refill friction stir spot welding based on three-dimensional feature of ultrasonic image

Liu

et al. 2022

Weld World

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Study on prediction of tensile-shear strength of weld spot based on an improved neural network algorithm

2022

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Ultrasonic C-scan detection research for effective connection area of arc-stud-weld joints

Cited by 6 publications

References 27 publications

Research on bolt looseness monitoring based on electromechanical impedance transmissibility technology

Research on bolt looseness monitoring based on electromechanical impedance transmissibility technology

Welding quality evaluation for refill friction stir spot welding based on three-dimensional feature of ultrasonic image

Study on prediction of tensile-shear strength of weld spot based on an improved neural network algorithm

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