A Baseline and Vision of Ultrasonic Guided Wave Inspection Potential

Rose, Joseph L.

doi:10.1115/1.1491272

Cited by 568 publications

(322 citation statements)

References 141 publications

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“…Many factors could affect the wave propagation and scattering [16][17][18]. The properties of guided waves in anisotropic plates are more complicated than those in isotropic plates [19,20]. The plate geometry, material properties, fibre arrangement, fibre orientation, transducer frequency, excitation mode and type of impact damage are among the factors.…”

Section: Introductionmentioning

confidence: 99%

Propagation and scattering of guided waves in composite plates with defects

Murat

Fromme

2022

Int. J. Automot. Mech. Eng.

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Failure in aerospace composites owing to low-velocity impact raises a significant maintenance concern because it can lead to invisible damage. For the aerospace industry, such defects pose a potential danger to the structural integrity of aircraft. This in turn jeopardises passenger safety and incurs high repair costs. Hence, it is important to efficiently monitor composite structures during the service life. In this study, the potential of low-frequency guided ultrasonic waves for health monitoring in laminated composite plates is investigated. This study focuses on the use of the first antisymmetric guided wave mode (A0). The first part of this study is to investigate the propagation of the A0 mode in three different undamaged composite plates experimentally. The dispersive and anisotropic behaviour are in agreement with the results of finite element simulations and semi-analytical analysis. The final part of this study presents the scattering of guided waves at the impact damage using a non-contact laser interferometer. Significant scattering activities were observed and the impact damage size can be estimated to be about 10 × 25 mm. In conclusion, these results demonstrate the potential of guided ultrasonic waves for the inspection of aerospace composite structures.

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Section: Introductionmentioning

confidence: 99%

Propagation and scattering of guided waves in composite plates with defects

Murat

Fromme

2022

Int. J. Automot. Mech. Eng.

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“…The spacing and frequency is then adjusted to excite various Lamb wave modes in the test structure. (Rose, 2002) Another method is to bond a piezoelectric actuator, usually in the form of a thin patch, directly to the surface of the test structure. The actuator is excited with a burst waveform, such as a windowed sinusoid, at a specific frequency.…”

Section: Typical Testing Methods With Lamb Wavesmentioning

confidence: 99%

Pipeline Structural Health Monitoring Using Macro-fiber Composite Active Sensors

Thien

2006

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The United States economy is heavily dependent upon a vast network of pipeline systems to transport and distribute the nation's energy resources. As this network of pipelines continues to age, monitoring and maintaining its structural integrity remains essential to the nation's energy interests. Numerous pipeline accidents over the past several years have resulted in hundreds of fatalities and billions of dollars in property damages. These accidents show that the current monitoring methods are not sufficient and leave a considerable margin for improvement. To avoid such catastrophes, more thorough methods are needed.As a solution, the research of this thesis proposes a structural health monitoring (SHM) system for pipeline networks. By implementing a SHM system with pipelines, their structural integrity can be continuously monitored, reducing the overall risks and costs associated with current methods. The proposed SHM system relies upon the deployment of macro-fiber composite (MFC) patches for the sensor array. Because MFC patches are flexible and resilient, they can be permanently mounted to the curved surface of a pipeline's main body. From this location, the MFC patches are used to monitor the structural integrity of the entire pipeline.Two damage detection techniques, guided wave and impedance methods, were implemented as part of the proposed SHM system. However, both techniques utilize the same MFC patches. This dual use of the MFC patches enables the proposed SHM system to require only a single sensor array. The presented Lamb wave methods demonstrated the ability to correctly identify and locate the presence of damage in the main body of the pipeline system, including simulated cracks and actual corrosion damage. The presented impedance methods demonstrated the ability to correctly identify and locate the presence of damage in the flanged joints of the pipeline system, including the loosening of bolts on the flanges. In addition to damage to the actual pipeline itself, the proposed methods were used to demonstrate the capability of detecting deposits inside of pipelines. Monitoring these deposits can prevent clogging and other hazardous situations.Finally, suggestions are made regarding future research issues which are needed to advance this research. Because the research of this thesis has only demonstrated the feasibility of the techniques for such a SHM system, these issues require attention before any commercial applications can be realized.

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“…Therefore, the non-destructive testing (NDT) of pipelines has become an important discipline for infrastructure management. Using ultrasonic guided waves is an effective method for long-range pipeline inspection; it has received considerable attention [1][2][3][4] and has been exploited successfully from a commercial point of view [5]. In guided wave pipeline inspection, the guided waves are emitted by active sensors which propagate along the pipeline structure under inspection.…”

Section: Measurement Science and Technologymentioning

confidence: 99%

An adaptive sparse deconvolution method for distinguishing the overlapping echoes of ultrasonic guided waves for pipeline crack inspection

Chang

Zhao

et al. 2017

Meas. Sci. Technol.

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In guided wave pipeline inspection, echoes reflected from closely spaced reflectors generally overlap, meaning useful information is lost. To solve the overlapping problem, sparse deconvolution methods have been developed in the past decade. However, conventional sparse deconvolution methods have limitations in handling guided wave signals, because the input signal is directly used as the prototype of the convolution matrix, without considering the waveform change caused by the dispersion properties of the guided wave. In this paper, an adaptive sparse deconvolution (ASD) method is proposed to overcome these limitations. First, the Gaussian echo model is employed to adaptively estimate the column prototype of the convolution matrix instead of directly using the input signal as the prototype. Then, the convolution matrix is constructed upon the estimated results. Third, the split augmented Lagrangian shrinkage (SALSA) algorithm is introduced to solve the deconvolution problem with high computational efficiency. To verify the effectiveness of the proposed method, guided wave signals obtained from pipeline inspection are investigated numerically and experimentally. Compared to conventional sparse deconvolution methods, e.g. the l 1 -norm deconvolution method, the proposed method shows better performance in handling the echo overlap problem in the guided wave signal.

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A Baseline and Vision of Ultrasonic Guided Wave Inspection Potential

Cited by 568 publications

References 141 publications

Propagation and scattering of guided waves in composite plates with defects

Propagation and scattering of guided waves in composite plates with defects

Pipeline Structural Health Monitoring Using Macro-fiber Composite Active Sensors

An adaptive sparse deconvolution method for distinguishing the overlapping echoes of ultrasonic guided waves for pipeline crack inspection

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