Acoustic Emission and Ultrasound for Damage Characterization of Concrete Elements

There is widespread use of the acoustic emission (AE) technique for real time concrete damage detection. Stress waves emerging from crack nucleation and propagation recorded on the material surface by suitable sensors are used by AE. AE is used in the present study to monitor the reinforced concrete beam deterioration program when subjected to four-point bending. Two layers of plain and fiber concrete made up the specimens. Ultrasonic pulse velocity measurements also were conducted at different loading steps to obtain the internal structure's transient three-dimensional tomographic reconstruction. There is good agreement between the AE source location and the velocity structure visualization ,and visual observation of the actual cracks developed are confirmed by the results. Results show that to study concrete failure progress, the AE technique and velocity tomography are useful tools.

  • Availability:
  • Authors:
    • Aggelis, Dimitrios G
    • Shiotani, Tomoki
    • Momoki, Shouhei
    • Hirama, Akinobu
  • Publication Date: 2009

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01150656
  • Record Type: Publication
  • Report/Paper Numbers: 106-M56
  • Files: TRIS
  • Created Date: Feb 15 2010 5:36PM