A nonlinear ultrasonic modulation approach for the detection and localisation of contact defects

Andreades, Christos; Fierro, Gian Piero Malfense; Meo, Michele

doi:10.1016/j.ymssp.2021.108088

Cited by 15 publications

(4 citation statements)

References 51 publications

(58 reference statements)

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“…C. Andreades et al [84] propose an ultrasonic phased array technique based on nonlinear modulation of dual frequency excitation to increase the sensitivity and accuracy of contact detection. The work has shown that the nonlinear array method can detect multiple contact defects in samples and has a higher localisation accuracy than the traditional linear phase array method.…”

Section: Natural Frequencymentioning

confidence: 99%

Nonlinear Vibration Analysis of Beam and Plate with Closed Crack: A Review

Tewelde

Krawczuk

2022

Acta Mechanica Et Automatica

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The effect of nonlinearity is high sensitivity in damage detection, especially for closed cracks and delamination. This review illustrates the results of several researchers dealing with nonlinear effects caused by the closure of cracks in the structure, i.e., beam and plate structures. Early detection of damage is an important aspect for the structure and, therefore, continuous progress is being made in developing new and effective methods that use nonlinear effects for early detection of damage and barely visible cracks, i.e., closed cracks and delamination, as well as for the determination of crack size and location. After analysing various methods, the merits, drawbacks and prospects of a number of nonlinear vibration methods for structural damage detection are discussed, and recommendations are made for future researchers.

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Section: Natural Frequencymentioning

confidence: 99%

Nonlinear Vibration Analysis of Beam and Plate with Closed Crack: A Review

Tewelde

Krawczuk

2022

Acta Mechanica Et Automatica

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“…In recent years, a small number of domestic and foreign scholars have conducted research on nonlinear ultrasound imaging based on phased array systems, taking into account the linear imaging concept in ultrasound phased array systems [1][2][3]. For example, OHARA et al from Tohoku University in Japan [1][2] used commercial phased array systems and phased array probes to detect fatigue cracks in metal specimens under different loading conditions and used the extracted second harmonic components for nonlinear imaging.…”

Section: Introductionmentioning

confidence: 99%

Research on microcracks detection of metal plate based on nonlinear ultrasound

Zhan,

Liu

2024

J. Phys.: Conf. Ser.

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In recent years, phased array ultrasonic non-destructive testing technology has been increasingly applied in the field of non-destructive testing. However, current phased array ultrasonic testing is based on traditional linear ultrasound and is not sensitive to defects such as microcracks in materials. This article proposes a nonlinear ultrasonic phased array detection technology—fundamental amplitude difference. Nonlinear components are obtained by subtracting the transmission of even and odd elements from the transmission of all elements in a phased array. First, to improve the detection effect, MATLAB software is used to simulate and study probes with different parameters. Under the premise of meeting the probe design standards, the various parameters of the probes are determined. Then, an experimental model was established using the finite element tool Abaqus. The relationship between microcracks of different lengths and nonlinear components was calculated by constructing multiple microcrack damage models. The final simulation results show that as the size of microcracks increases, the corresponding nonlinear components also gradually increase, which can more accurately detect nonlinear components and improve detection accuracy.

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“…The ultrasonic flaw detection technique is a major type of pipe testing. Some studies [1][2][3][4][5] have shown that the technique has great potential for non-destructive testing applications. When ultrasound is traveling through the tested material, parts of the wave is reflected back by the flaw, and the waveform is changed.…”

Section: Introductionmentioning

confidence: 99%

A method of estimation for the area and direction of pipe crack

Chen

2022

J. Phys.: Conf. Ser.

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Crack direction will affect the ultrasonic wave reflected from it. Firstly, the correlation between crack direction and the reflected energy of ultrasonic is analyzed. Then, a mathematical model of crack direction and its reflected energy is developed due to the theory and methods of function approximation. Finally, aiming at the problem that the crack area must be known when using the model to estimate the crack direction, By observing the probability distribution of reflected wave energy of cracks with different areas and directions at different measurement distances, Using its law and mathematical model, an algorithm for estimating crack area and crack direction is designed. According to the related experiments, the study confirmed that both the estimation errors of the crack area and direction by the method are 5.25% and 8.21%, respectively.

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A nonlinear ultrasonic modulation approach for the detection and localisation of contact defects

Cited by 15 publications

References 51 publications

Nonlinear Vibration Analysis of Beam and Plate with Closed Crack: A Review

Nonlinear Vibration Analysis of Beam and Plate with Closed Crack: A Review

Research on microcracks detection of metal plate based on nonlinear ultrasound

A method of estimation for the area and direction of pipe crack

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