Contactless Ultrasonic Wavefield Imaging to Visualize Near-Surface Damage in Concrete Elements

Homin Song, John S Popovics

Research output: Contribution to journalArticle

Abstract

We present work to detect and visualize near-surface damage in concrete using contactless ultrasonic wavefield imaging technology. A fully contactless ultrasonic scanning system that utilizes a micro-electro-mechanical systems (MEMS) ultrasonic microphone array is used to collect ultrasonic surface wave data from a concrete sample. The obtained wavefield data sets are processed with a frequency-wavenumber (f-k) domain wavefield filtering approach to extract non-propagating oscillatory fields set up by near-surface concrete cracking damage. The experimental results demonstrate that near-surface concrete damage can be detected and visualized using the proposed ultrasonic wavefield imaging approach.

Original languageEnglish (US)
Article number3005
JournalApplied Sciences (Switzerland)
Volume9
Issue number15
DOIs
StatePublished - Jul 26 2019

Fingerprint

Ultrasonic imaging
ultrasonics
Concretes
damage
Ultrasonics
Ultrasonic waves
Microphones
Surface waves
microphones
surface waves
Scanning
scanning

Keywords

  • Air-coupled
  • Concrete
  • Cracking
  • Damage visualization
  • MEMS ultrasonic microphone array
  • Surface waves
  • Ultrasonic wavefield imaging

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

Cite this

Contactless Ultrasonic Wavefield Imaging to Visualize Near-Surface Damage in Concrete Elements. / Song, Homin; Popovics, John S.

In: Applied Sciences (Switzerland), Vol. 9, No. 15, 3005, 26.07.2019.

Research output: Contribution to journalArticle

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