Experimental study of guided wave propagation and damage detection in large diameter pipe filled by different fluids

Song, Zhenhua; Qi, Xiangshang; Liu, Zenghua; Ma, Hongwei

doi:10.1016/j.ndteint.2017.10.002

Cited by 20 publications

(5 citation statements)

References 17 publications

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“…The main feature of Lamb waves is their ability to travel over long distances with a very little energy loss. Many previous studies reported an excellent sensitivity of these waves to the presence of damage in different metallic and composite structures such as beams [21], [22], plates [23], [24], pipes [25], [26] as well in structures made of concrete [27]. These studies also demonstrated that Lamb waves have a great potential for development of cost-effective methods for non-destructive safety inspections or on-line monitoring systems [28], [29].…”

Section: Structural Health Monitoring Using Guided Wavesmentioning

confidence: 66%

Finite element prediction of acoustoelastic effect associated with Lamb wave propagation in pre-stressed plates

Yang

Mohabuth

et al. 2019

Smart Mater. Struct.

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The paper presents outcomes of a finite element (FE) study of acoustoelastic effect associated with Lamb wave propagation in plates subjected to homogeneous bi-axial and bending stresses.In particular, the change of the phase velocity of the fundamental Lamb wave modes is obtained for different stress levels, bi-axial stress ratios and wave propagation angles. A comparison of the obtained numerical results with an analytical solution demonstrates a very good agreement.Moreover, the influence of bending stress on the wave velocities and wave front profile is further investigated numerically. There are currently no analytical results for this case. The developed and validated FE modelling approach can help to address several issues in the current non-destructive inspections including: in the investigation of changing stress conditions on the defect detection as well as in an adaptation of the existing Lamb wave-based defect evaluation systems to monitoring of stress too. The latter may have many benefits from sharing the same hardware for the purpose of maintaining structural integrity of thin-walled structural components. . Acoustoelastic effect of Lamb wave propagationAcoustoelastic effect is defined as the effect of the applied stress on the wave propagation in a media. It has been studied since the development of the finite deformation theory by Murnaghan [40], who formulated the material nonlinearity using third order elastic constants. Some pioneering studies in this area include the research of Hughes and Kelly [41], who derived equations relating the wave velocity to the applied stress and experimentally measured the acoustoelastic effect. Another experimental study of Egle and Bray [42] demonstrated how to obtain higher-order elastic constants from experiments with bulk waves. In the literature, many developments and studies in the acoustoelasticity mainly focused on and utilised bulk waves (Pau and Scalea [43]). The acoustoelastic effect is usually quantified = (20) So, equation (19), with the energy function presented in equation (16) can be translated to, ¬ = J -. © © = J -. © © © = J -. %)( ) % ©where T is the second Piola-Kirchhoff (PK2) stress. The stress in VUMAT must be updated with the equation at the end ( + ∆ ) of an integration step and stored in stressNew(i), based on the values of F and U given in the subroutine at the end of previous step ( ). Numerical Case Studies 3D Finite Element ModelA 3D FE model of a 6061-T6 aluminium plate was developed with ABAQUS software and the wave propagation problem was solved by the explicit integration approach [49]. The materialproperties of the 6061-T6 aluminium are listed in Table 1. The thickness of the plate is 3.2mm and the in-plane dimension is 240mm×240mm. The element type used in the model is the 8-

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Section: Structural Health Monitoring Using Guided Wavesmentioning

confidence: 66%

Finite element prediction of acoustoelastic effect associated with Lamb wave propagation in pre-stressed plates

Yang

Mohabuth

et al. 2019

Smart Mater. Struct.

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“…Since water cannot withstand shear, the UGWs in water cylinders have no torsional modes, and only 10 longitudinal modes Lw(0,0-9) exist, as illustrated in Figure 2b. In spite of Lwp(0,m) and Twp(0,m) in Figure 2c, the α-mode can also be observed, which is dominated by radial displacement with dispersion in the low-frequency band and is similar to the Scholte wave with almost no dispersion in the high-frequency band [38,39]. Furthermore, there seems to be no influence of water on Tp(0,1) and Lp(0,1), whereas Lp(0,2) is split into multiple modes Lwp(0,2-10) by Lw(0,1-9), which means that Lwp(0,2-10) can be considered to be the combination of two water cylinder modes and a vacant pipe mode for the mode coupling of UGWs in different media [40].…”

Section: Dispersionmentioning

confidence: 97%

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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“…Some applications can be conducted using only the axially propagating longitudinal guided wave, thus, the rectangular piezoelectric longitudinal transducer is the optimal choice [50]. For example, the relationship between the reflection of the longitudinal guided wave and the characteristics of defect [51,52], the longitudinal guided wave reflected from a coated or wall-filled pipeline [53]. Two rings of rectangular piezoelectric longitudinal transducers can be adjacently arranged for guided wave excitation and reception, as shown in figure 13(c) [54].…”

Section: Piezoelectric Longitudinal Transducer Arraymentioning

confidence: 99%

A review of non-axisymmetric guided waves and their corresponding transducers for defect detection in circular tube structures

Fang

2023

Smart Mater. Struct.

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An axisymmetric guided wave mode is excited independently within a circular tube structure to reduce the complexity of signal interpretation through the prevention of unwanted wave polarisations and reflections. However, it is difficult to use the axisymmetric guided wave to determine the circumferential position and coverage of a defect within the circular tube structure. Non-axisymmetric guided waves can be used to mitigate the limitation of the axisymmetric guided wave through the adoption of a partially covered transducer design and analysis of the propagation characteristics. The partial excitation of non-axisymmetric guided waves can facilitate the arrangement of a transducer during defect detection. This paper reviews state-of-the-art research on non-axisymmetric guided waves for determining the axial positions, circumferential positions, and circumferential lengths of defects. First, the fundamental analysis of a specific non-axisymmetric guided wave mode based on the normal mode expansion method and beam directivity analysis method reveals that the propagation characteristics of the wave mode are closely related to the working principle and configuration of the corresponding transducer. Then, the advantages and disadvantages of the different types of transducers and transducer arrays for the excitation of non-axisymmetric guided waves are introduced and discussed. Finally, the current defect detection methods based on non-axisymmetric guided waves are discussed and summarised. This review can promote the application of non-axisymmetric guided waves in defect detection.

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Experimental study of guided wave propagation and damage detection in large diameter pipe filled by different fluids

Cited by 20 publications

References 17 publications

Finite element prediction of acoustoelastic effect associated with Lamb wave propagation in pre-stressed plates

Finite element prediction of acoustoelastic effect associated with Lamb wave propagation in pre-stressed plates

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

A review of non-axisymmetric guided waves and their corresponding transducers for defect detection in circular tube structures

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