A multi-helical ultrasonic imaging approach for the structural health monitoring of cylindrical structures

Dehghan-Niri, Ehsan; Salamone, Salvatore

doi:10.1177/1475921714548937

Cited by 56 publications

(40 citation statements)

References 37 publications

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“…With the development of technology, intelligent detection technology was developed. By using an array of permanently installed piezoelectric transducers to generate and receive high‐order helical guided waves around the cylindrical structure, Dehghan‐Niri proposed an approach of metal loss defects identification based on the probabilistic imaging algorithm. By combining with Acoustic Emission technique and Guided Ultrasonic Waves, Farhidzadeh presented several full‐scale experiments to validate the feasibility of online health monitoring of the pipelines.…”

Section: Introductionmentioning

confidence: 99%

A method of pipeline corrosion detection based on hoop-strain monitoring technology

Ren

Jiang

et al. 2016

Struct. Control Health Monit.

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Summary A pipeline is often an important structure with very long service life. It is of great significance to monitor the corrosion level of a pipeline to ensure its safety operation. This paper aims to develop a new nondestructive method to detect the pipeline corrosion. It is assumed that the pipeline corrosion will result in a variation of the circumferential strain. The nondestructive detection method is based on a novel fiber Bragg grating (FBG) hoop‐strain sensor, which can accurately measure the circumferential strain of a pipeline. In this paper, the theoretical study and numerical analysis based on finite element method are detailed in our initial work. Then, tests are conducted on three steel pipes to verify the effectiveness and accuracy of this method. The results demonstrate that the FBG hoop‐strain sensor has good performance in the circumferential strain measurement and is sensitive to the variation of the circumferential strain caused by different corrosion level. The FBG hoop‐strain sensor is considered to be a promising device in pipeline corrosion monitoring. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

A method of pipeline corrosion detection based on hoop-strain monitoring technology

Ren

Jiang

et al. 2016

Struct. Control Health Monit.

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“…Under this assumption, guided wave propagation in the structure may be approximated by Lamb wave propagation due to a point source in a plate. [17][18][19] The plate-like guided waves in a thin-walled pipe are known as helical guided waves. 17 The guided wave paths between a source and a receiver are referred to as helical paths.…”

Section: Helical Guided Waves In Large Diameter Pipesmentioning

confidence: 99%

Sparse reconstruction localization of multiple acoustic emissions in large diameter pipelines

2017

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A sparse reconstruction localization method is proposed, which is capable of localizing multiple acoustic emission events occurring closely in time. The events may be due to a number of sources, such as the growth of corrosion patches or cracks. Such acoustic emissions may yield localization failure if a triangulation method is used. The proposed method is implemented both theoretically and experimentally on large diameter thin-walled pipes. Experimental examples are presented, which demonstrate the failure of a triangulation method when multiple sources are present in this structure, while highlighting the capabilities of the proposed method. The examples are generated from experimental data of simulated acoustic emission events. The data corresponds to helical guided ultrasonic waves generated in a 3 m long large diameter pipe by pencil lead breaks on its outer surface. Acoustic emission waveforms are recorded by six sparsely distributed low-profile piezoelectric transducers instrumented on the outer surface of the pipe. The same array of transducers is used for both the proposed and the triangulation method. It is demonstrated that the proposed method is able to localize multiple events occurring closely in time. Furthermore, the matching pursuit algorithm and the basis pursuit densoising approach are each evaluated as potential numerical tools in the proposed sparse reconstruction method.

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“…The initial stresses are those that result from the pressurization in Eq. (22). Material properties for steel and water that are used to generate theoretical dispersion curves are contained in Table I.…”

Section: Attenuationmentioning

confidence: 99%

Helical guided waves in liquid-filled cylindrical shells subjected to static pressurization stress

2016

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Helical guided waves in pipelines are studied under the effects of pressurization stresses from a contained liquid. The pipeline is approximated by an "unwrapped" plate waveguide, and a transfer matrix method is used to solve for guided wave velocity and attenuation dispersion curves in a multilayered plate waveguide subject to an arbitrary triaxial state of initial stress. The matrix-based model is able to incorporate both elastic and viscoelastic solid materials, as well as approximate non-uniform distributions in initial stress through the thickness of a waveguide. Experiments on a steel pipe filled with pressurized water are carried out to validate the modeling approach.

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A multi-helical ultrasonic imaging approach for the structural health monitoring of cylindrical structures

Cited by 56 publications

References 37 publications

A method of pipeline corrosion detection based on hoop-strain monitoring technology

A method of pipeline corrosion detection based on hoop-strain monitoring technology

Sparse reconstruction localization of multiple acoustic emissions in large diameter pipelines

Helical guided waves in liquid-filled cylindrical shells subjected to static pressurization stress

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