Finite element analysis for the damage detection of light pole structures

Tang, Qixiang; Yu, Tzuyang; Jen, M R F

doi:10.1117/12.2075689

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Various nondestructive evaluation/testing (NDE/T) and structural health monitoring (SHM) techniques have been applied to steel structures [1]. Example techniques include visual testing [2], modal analysis [3], eddy current testing [4], thermal infrared testing [5], and ultrasonic testing [6,7]. Among these techniques, piezoelectric transducers (PZTs) and fiber optic sensors (FOSs) are widely used in SHM for corrosion detection.…”

Section: Introductionmentioning

confidence: 99%

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

Tang

et al. 2018

Infrastructures

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Detection of early-stage corrosion on slender steel members is crucial for preventing buckling failures of steel structures. An active photoacoustic fiber optic sensor (FOS) system is reported herein for the early-stage steel corrosion detection of steel plates and rebars using surface ultrasonic waves. The objective of this study is to investigate a potential method for detecting surface corrosion/rust of steel rods using numerically simulated surface ultrasonic waves. The finite element method (FEM) was applied in the simulation of propagating ultrasonic waves on steel rod models. The pitch-catch mode of damage detection was adopted, in which one source (transmitter) and one sensor (receiver) were considered. In this research, radial displacements at the receiver were simulated and analyzed by short-time Fourier transform (STFT) for detecting, locating, and quantifying surface rust located between the transmitter and the receiver. From our time domain and frequency domain analyses, it was found that the presence, location, and dimensions (length, width, and depth) of surface rust can be estimated by ultrasonic wave propagation.

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Section: Introductionmentioning

confidence: 99%

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

Tang

et al. 2018

Infrastructures

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“…Various nondestructive evaluation/testing (NDE/T) and structural health monitoring (SHM) techniques have been applied to steel structures [1]. Example techniques include visual testing [2], modal analysis [3], Eddy current testing [4], thermal infrared testing [5], and ultrasonic testing [6,7]. Among these techniques, fiber optic sensors (FOS) represent a popular approach for long-term monitoring of steel structures [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…3.47(10 − s 3 ) 2 + 39.9 2 − t 2 − 3.47s 3 (10 − s 3 ) 2 +39.9 2 + 155.58t 2 − 33.31s 3 = 0 (20) ⇒ 5871.27 − 102.71 − 20371.8 − 240.8s 3 + 12.…”

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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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Comprehensive performance analysis and optimal design of smart light pole for cooperative vehicle infrastructure system

Zhang

Liu

Gou

et al. 2021

Nanotechnology Reviews

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On the basis of the finite element theory, in this study, a theoretical design and simulation practice to carry out steady-state static analysis, structural dynamics analysis, and electromagnetic interferencecharacteristics analysis on smart light poles, is combined. On this basis, a design of modular weight reduction and cost reduction was proposed, which realized the multi-objective parameter optimization of the smart light pole. The simulation results show that the mass of the optimized light pole can be reduced by 14.2%, and the material cost can be reduced by 14.7%. At the same time, the comprehensive performance of the optimized smart light pole can still meet the design requirements of the industry standards. The research results provide a reference for the lightweight design and the comprehensive analysis of the smart light pole in the future.

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Finite element analysis for the damage detection of light pole structures

Cited by 3 publications

References 7 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

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

Comprehensive performance analysis and optimal design of smart light pole for cooperative vehicle infrastructure system

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