Probability density field of acoustic emission events: Damage identification in concrete structures

Fengqiao Zhang*, Yuguang Yang, Marius Naaktgeboren, Max A.N. Hendriks

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

This paper proposes a new damage identification method, namely, the probability density field of acoustic emission (AE) events. This new method provides a different perspective to deal with the uncertainties in the source localization process. We treat the source location as a random variable, and estimate its probability density field based on a probability density function. The function was found from simulations where various uncertainties were included. The probability of AE events falling in a certain space range is the integral of the probability densities over that range. We apply the new method in a failure test of a full-scale reinforced concrete beam. The resultant probability density field clearly reflects the crack patterns of the specimen and a close relationship with the crack width.

Original languageEnglish
Article number126984
Number of pages10
JournalConstruction and Building Materials
Volume327
DOIs
Publication statusPublished - 2022

Keywords

  • Acoustic emission event density
  • Acoustic emission source localization
  • Concrete structures
  • Damage identification
  • Probability density function
  • Source localization error

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