Signal Quality Improvement Using a New TMSSE Algorithm: Application in Delamination Detection in Composite Materials

Benammar, Abdessalem; Kechida, Ahmed; Drai, Redouane

doi:10.1007/s10921-017-0398-4

Cited by 7 publications

(5 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, some investigations focused on ultrasonic PA signal enhancement to improve delamination inspection in composites, Abdessalem et al 122 applied the threshold modified S-transform (TMST) approach to improve image quality and resolution to enhance delamination detection; similarly, TMST and Shannon energy can be used for this aim. 123 In addition to discussing subjects, numerous modern approaches can be suggested and investigated to detect delamination defects in composite components based on ultrasonic techniques, phased arrays, and signal correlation algorithms. 54 By increment of surface curvature, the sensitivity and selectivity of NDT systems sharply decrease, and shape complexities and complex geometries induce substantial challenges to traditional NDEs.…”

Section: Complex Geometries and Compositesmentioning

confidence: 99%

Ultrasonic and phased-array inspection in titanium-based alloys: A review

Shi

Ebrahimi

Zhou

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

Ultrasonic testing procedures are among the most extensively used techniques in non-destructive testing and non-destructive evaluation systems. Meanwhile, phased array inspection or phased-array ultrasonic testing techniques as a well-known type of ultrasonic testing in advanced non-destructive testing systems are utilized in numerous applications, including oil and gas, medical imaging applications, railway, automotive, marine, and aviation industries. Phased-array ultrasonic testing-based methods can also be used in a variety of weld inspections, bond testing, thickness profiling, flaw detections, corrosion inspections, and in-service crack detection. The rapidity, safety, easiness, affordable price, and accurate visualization of phased array in measuring the defect characteristics such as size, shape, depth, and orientation allow its wide usage and even as a substitute for other inspection methods like radiographic methods. In phased array methods, more than one sound wave is employed to enhance the reliability and flexibility of inspection through the operation of several transducer assemblies, involving 16 to 256 small individual elements. Titanium having many desirable properties like high strength to weight ratio found many industrial applications, which highly necessitates its persistent inspection. For this aim, the present study focuses on the application of the phased-array ultrasonic testing technique for inspecting Ti components specifically in additive manufacturing, welding inspections, and defect detection of complex geometries and composites. Moreover, modern applications and improved computation methods are discussed. The development of phased-array ultrasonic testing inspection systems, particularly high throughput and efficient in situ and mobile equipment, and new computation methods will open new horizons toward the highly sophisticated inspection procedures.

show abstract

Section: Complex Geometries and Compositesmentioning

confidence: 99%

Ultrasonic and phased-array inspection in titanium-based alloys: A review

Shi

Ebrahimi

Zhou

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

show abstract

“…However s-transform method improved in a recent year, in [43] a novel method to improve detection in phased array ultrasonic for localizing with accuracy delamination defect. 3 method used in this process which is threshold modified s-transform algorithm (TMST), stransform Shannon energy (SSE) and threshold modified S-transform and Shannon energy (TMSSE).…”

Section: S-transformmentioning

confidence: 99%

Ultrasonic signal processing techniques for Pipeline: A review

et al. 2019

View full text Add to dashboard Cite

Monitoring pipeline wall is an important issue in oil and gas industries. Over time, the defect can occur in the pipeline and can impact surrounding population, environment and may result in injuries or fatalities. While flaws in the pipeline could be detected by ultrasonic testing and monitoring the severity of the flaw. The limitation of ultrasonic testing is the signal contaminate with backscattering noise, which masks flaw echoes in the measured signal. Signal processing take place in the recent year to de-noising for improving signal-to-noise ratio and extract the feature for flaws classification. This paper presents a comprehensive overview of signal processing techniques used to improve ultrasonic detection method with and without intelligent classifier. Finally, the advantages and disadvantages feature extraction provided for classifications process.

show abstract

“…In addition, the array elements can be excited in a specific order and according to pre-set delay laws to achieve steering or focusing of ultrasonic wave beams for improved localisation and sizing of damage [10,11]. Various studies on linear phased array methods demonstrated effective identification of contact flaws at a single interface in metallic or composite parts [12][13][14][15][16], but only few of them detected multiple defect interfaces through the material thickness [17,18]. This can be very challenging, depending on the mechanical contact between the surfaces at each damaged plane.…”

Section: Introductionmentioning

confidence: 99%