Acoustic emission of steel-fiber concrete under four-point bending

D. G. Aggelis, D. Soulioti, N. M. Barkoula, A. S. Paipetis, T. E. Matikas, T. Shiotani

Research output: Chapter in Book/Report/Conference proceedingConference paper

1 Citation (Scopus)

Abstract

This work deals with the AE behavior of concrete under four-point bending. Different contents of steel fibers were included to investigate their influence on the load-bearing capacity and on the fracture mechanisms. The AE waveform characteristics revealed that, although tension was the dominant mechanism of fracture for the plain material, the increase in the fiber content resulted in extension of the shear failure due to improvement of the weak tensile properties of concrete. Appropriate AE indices employed for early warning prior to macroscopic failure can lead to more suitable design of the reinforcement, in order to withstand the specific stresses.

Original languageEnglish
Title of host publicationNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009
PublisherElsevier
ISBN (Print)9780819475541
DOIs
Publication statusPublished - 15 Jun 2009
EventNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009 - San Diego, CA, United States
Duration: 9 Mar 200911 Mar 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7294
ISSN (Print)0277-786X

Conference

ConferenceNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009
CountryUnited States
CitySan Diego, CA
Period9/03/0911/03/09

Keywords

  • Acoustic emission
  • Bending
  • Concrete
  • Fracture mode
  • Steel fibres

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