An experimental technique for evaluating viscoelastic damping using ultrasonic guided waves

Mehrabi, M. H.; Soorgee, Mohammad Hossein; Habibi, Hossein; Kappatos, Vassilios

doi:10.1016/j.ultras.2022.106707

Cited by 8 publications

(3 citation statements)

References 36 publications

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“…However, the damping properties for PE in the frequency range used in this study are not widely reported. To address this issue, previous studies [47,48] were used as a basis for optimizing material damping, where overall attenuation during wave propagation was represented as a function of the geometric spreading of the wavefront with increasing propagation distance, and a viscous damping term defined using the Rayleigh damping model. The corresponding parameters in these studies were fine-tuned through the curve-fitting approach to capture the experimental trend of wave mode amplitude reduction with the propagation distance.…”

Section: Development and Validation Of Numerical Models 41 Numerical ...mentioning

confidence: 99%

Guided Wave Ultrasonic Testing for Crack Detection in Polyethylene Pipes: Laboratory Experiments and Numerical Modeling

Shah,

El-Hawwat,

Wang

2023

Sensors

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The use of guided wave-based Ultrasonic Testing (UT) for monitoring Polyethylene (PE) pipes is mostly restricted to detecting defects in welded zones, despite its diversified success in monitoring metallic pipes. PE’s viscoelastic behavior and semi-crystalline structure make it prone to crack formation under extreme loads and environmental factors, which is a leading cause of pipeline failure. This state-of-the-art study aims to demonstrate the potential of UT for detecting cracks in non-welded regions of natural gas PE pipes. Laboratory experiments were conducted using a UT system consisting of low-cost piezoceramic transducers assembled in a pitch-catch configuration. The amplitude of the transmitted wave was analyzed to study wave interaction with cracks of different geometries. The frequency of the inspecting signal was optimized through wave dispersion and attenuation analysis, guiding the selection of third- and fourth- order longitudinal modes for the study. The findings revealed that cracks with lengths equal to or greater than the wavelength of the interacting mode were more easily detectable, while smaller crack lengths required greater crack depths for detection. However, there were potential limitations in the proposed technique related to crack orientation. These insights were validated using a finite element-based numerical model, confirming the potential of UT for detecting cracks in PE pipes.

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Section: Development and Validation Of Numerical Models 41 Numerical ...mentioning

confidence: 99%

Guided Wave Ultrasonic Testing for Crack Detection in Polyethylene Pipes: Laboratory Experiments and Numerical Modeling

Shah,

El-Hawwat,

Wang

2023

Sensors

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“…It is essential to analyze the noise sensitivity for the influence of non-coherent noise induced by environmental factors. The noisy signals composed of theoretical signal and noise were obtained, where the noise level is represented by the signal-to-noise ratio (SNR), and the reconstructed signals of OMP, DOMP and DMOMP are displayed in Figure 13. As the noise level increases, the SNR becomes lower, and the RES gradually becomes larger, indicating the certain influence of noise on the reconstruction accuracy.…”

Section: Sensitivity To Noisementioning

confidence: 99%

“…Ultrasonic guided waves (UGWs) have gained substantial attention in nondestructive testing (NDT) [1,2] and structural health monitoring (SHM) [3,4] for the low attenuation and high propagation velocity, which are widely adopted in the detection of pipes [5], strands [6], laminates [7], rails [8], bones [9], etc. Notably, considering the ability of UGW testing to characterize the pipe defects that may affect current and future performance, it has also been applied to fluid-filled pipes [10], underground pipes [11], underwater pipes [12], coated pipes [13] and other pipeline systems that take into account the operating situation.…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of Water-Filled Pipe Ultrasonic Guided Wave Signals in the Distance Domain by Orthogonal Matching Pursuit Based on Dispersion and Multi-Mode

Wang,

Tang,

Gong

et al. 2023

Sensors

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Ultrasonic guided waves (UGWs) in water-filled pipes are subject to more severe dispersion and attenuation than vacant pipes, posing significant challenges for defect identification and localization. To this end, a novel sparse signal decomposition method called orthogonal matching pursuit based on dispersion and multi-mode (DMOMP) was proposed, which utilizes the second-order asymptotic solution of dispersion curves and the conversion characteristics of asymmetric UGWs in the defect contact stage to reconstruct the dispersive signals and converts the time-domain dispersive signals to distance-domain non-dispersive signals by dispersion compensated time-distance mapping. The synthesized simulation results indicate that DMOMP not only exhibits higher reconstruction accuracy compared to OMP, but also reveals more accurate and stable mode recognition and localization compared to DOMP, which only considers the dispersion under perturbation and noise. In addition, the UGW testing experimental results of water-filled pipes verify the effectiveness of DMOMP, the localization accuracies of three feature signals (defct 1, defct 2 and end echo) with DMOMP are 99.10%, 98.72% and 98.36%, respectively, and the average localization accuracy of DMOMP is as high as 98.73%.

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Defect Detection and Damage Evaluation of Steel Rods Based on Ultrasonic Guided Waves

Zhu

Zhang

2022

Lecture Notes in Civil Engineering

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An experimental technique for evaluating viscoelastic damping using ultrasonic guided waves

Cited by 8 publications

References 36 publications

Guided Wave Ultrasonic Testing for Crack Detection in Polyethylene Pipes: Laboratory Experiments and Numerical Modeling

Guided Wave Ultrasonic Testing for Crack Detection in Polyethylene Pipes: Laboratory Experiments and Numerical Modeling

Reconstruction of Water-Filled Pipe Ultrasonic Guided Wave Signals in the Distance Domain by Orthogonal Matching Pursuit Based on Dispersion and Multi-Mode

Defect Detection and Damage Evaluation of Steel Rods Based on Ultrasonic Guided Waves

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