Investigations of AE Signals Emitted From Dropped Indenter on Steel Pipes’ Surface

M. Shehadeh, A. Osman, A. H. Abdelbaky Elbatran, J. A. Steel, R. L. Reuben

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Abstract

Acoustic emission (AE) are stress waves created by the material deformation, which could be utilized to detect impacts of objects within different mechanical systems. In a mechanical system, impacts from dropped masses are pertinent to realistic wave sources where is to improve precision of source location in real situation. As such, work is required in order to experimentally evaluate the distortions of AE signals using a set of impacts tests. A series of source intensities were simulated on a steel pipe also the effects of signal type and intensity on the frequency and time domain features were determined. In order to locate and reconstitute the time- and frequency-domain signatures of the AE source, sensors were mounted externally on segments of the tested pipes. It is concluded that the AE energy was easily affected by the location of the indenter shape/geometry. This study demonstrated the significant features and the capability of AE associated with real sources for evaluating and determining the intensity, nature and the position of the damaging events.

Original languageEnglish
Pages (from-to)147947-147957
Number of pages11
JournalIEEE Access
Volume9
Early online date26 Oct 2021
DOIs
Publication statusPublished - 2021

Keywords

  • Acoustic emission
  • Cumulative energy
  • Impact
  • Indentation
  • Pipeline
  • Sensors

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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