Finite element simulation of photoacoustic fiber optic sensors for surface corrosion detection on a steel rod

Tang, Qixiang; Twumasi, Jones Owusu; Hu, Jie; Wang, Xingwei; Yu, Tzuyang

doi:10.1117/12.2295032

Cited by 8 publications

(10 citation statements)

References 5 publications

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“…In the past, FEM had been applied for simulating ultrasonic wave propagation for damage detection [14][15][16]. Among various signal processing techniques, short-time Fourier transform (STFT) has been demonstrated as an applicable approach for analyzing the transient response of ultrasonic wave propagation in the time-frequency domain [17]. In this research, cylindrical geometry was numerically modeled by six steel rod models (one intact and five corroded) in a commercially available finite element package (ABAQUS 2016) [18].…”

Section: Finite Element Simulationmentioning

confidence: 99%

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Surface Rust Detection Using Ultrasonic Waves in a Cylindrical Geometry by Finite Element Simulation

Tang¹,

Du²,

Hu³

et al. 2018

Preprint

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Detection of early stage corrosion on slender steel members is crucial for preventing 1 buckling failures of steel structures. An active photoacoustic fiber optic sensors (FOS) system 2 has been reported for early stage steel corrosion detection of steel plates and rebars using surface 3 ultrasonic waves. The objective of this paper is to investigate the surface corrosion/rust detection 4 problem on steel rods using numerically simulated surface ultrasonic waves. The finite element 5 method (FEM) is applied in simulating the propagation of ultrasonic waves on steel rod models. 6Transmission mode of damage detection is adopted, in which one source (transmitter) and one sensor 7 (receiver) are considered. In this research, radial displacements at the receiver were simulated and 8 analyzed by short-time Fourier transform (STFT) for detecting, locating, and quantifying a surface 9 rust located between the transmitter and the receiver. From our time domain and frequency domain 10 analyses, it is found that the presence, location, and dimensions (length, width, and depth) of surface 11 rust can be estimated by ultrasonic waves propagating through the surface rust.

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Section: Finite Element Simulationmentioning

confidence: 99%

“…From the differential 1-MHz curve in Fig. 10 (b), a propagation velocity model from literature [17] for elastic waves on a cylindrical geometry was used.…”

Section: Surface Rust Detectionmentioning

confidence: 99%

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Surface Rust Detection Using Ultrasonic Waves in a Cylindrical Geometry by Finite Element Simulation

Tang¹,

Du²,

Hu³

et al. 2018

Preprint

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“…In this paper, for the signal generator part, the electronic transducer has been replaced by fiber optic sensor [5][6][7][8][9][10][11][12][13]. Since it is fabricated by optical fibers, the fiber optic signal generator can survive in a higher temperature than the traditional electronic transducers.…”

Section: Introductionmentioning

confidence: 99%

A fiber optic ultrasonic sensing system for 2D temperature field monitoring using optically generated acoustic waves

Zhou

Guo

Ma³

et al. 2019

Photonics and Education in Measurement Science 2019

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In this paper, we present a novel fiber optic ultrasonic sensing system to conduct a 2D temperature field monitoring. The fiber optic ultrasonic sensing system was used as an ultrasonic pyrometer to measure the temperature field. The ultrasonic pyrometer was based on the thermal dependence of the speed of sound in air. The speed of a sound wave traveling in a medium was proportional to the medium's temperature. A fiber optic ultrasonic generator and a microphone were used as the ultrasonic signal generator and receiver, respectively. A carbon black-Polydimethylsiloxane (PDMS) material was utilized as the photoacoustic material for the fiber optic ultrasonic generator. A test was performed outside of a lab furnace, the testing area temperature range was from 26°C to 70°C. A 2D temperature field was mapped. The 2D temperature field map matched with the reference thermocouple results. This system could lead to the development of a new generation temperature sensor for temperature field monitoring in coalfired boilers or exhaust gas temperature monitoring for turbine engines.

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“…A lot of numerical models have been developed for numerical simulation of wave propagation in rod structures, like Harari and Turkel (1995), Seemann (1996) and so on. Finite element method is one of the most widely used one and has been applied in simulation of ultrasonic wave propagation by many researchers like Tang and Yu (2017) and Tang et al (2018), but FEM is mesh dependent to get a accurate enough result, Chen et al (2012) proposed that at least 10 nodes per wavelength are required to get an accurate simulation results based on the "rule of thumb". Hence the element size must be very small especially when the frequency of ultrasonic wave is very high.…”

Section: Introductionmentioning

confidence: 99%

Nondestructive ultrasonic testing in rod structure with a novel numerical Laplace based wavelet finite element method

Zhang

Shen

et al. 2018

Lat. Am. j. solids struct.

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Rod structure has been widely used in aerospace engineering and civil engineering. Nondestructive testing is a very important method applied to detect unseen flaws in structures, ultrasonic wave nondestructive testing has been used in many areas. Finite Element Method is one of the most widely used numerical methods but would have a high cost when doing simulation on ultrasonic wave due to the requirement of small time interval and element size. Wavelet based finite element method could improve the spatial resolution with fewer elements needed but still needs very small time interval. Laplace transform could easily convert the time domain into frequency and then inverse to time domain. This paper presents an innovative method combining Laplace transform and B-spline wavelet on interval (BSWI) finite element method, which could not only decrease the element number but also increase the time integration interval. Moreover, this innovative method is applied to simulate the ultrasonic wave propagation in 1D rod structure as well as used for nondestructive testing of damages in rod structures.

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Finite element simulation of photoacoustic fiber optic sensors for surface corrosion detection on a steel rod

Cited by 8 publications

References 5 publications

Surface Rust Detection Using Ultrasonic Waves in a Cylindrical Geometry by Finite Element Simulation

Surface Rust Detection Using Ultrasonic Waves in a Cylindrical Geometry by Finite Element Simulation

A fiber optic ultrasonic sensing system for 2D temperature field monitoring using optically generated acoustic waves

Nondestructive ultrasonic testing in rod structure with a novel numerical Laplace based wavelet finite element method

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