Potential of acoustic emissions from three point bending tests as rock failure precursors

Z. Agioutantis, K. Kaklis, S. Mavrigiannakis, M. Verigakis, F. Vallianatos, V. Saltas

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Development of failure in brittle materials is associated with microcracks, which release energy in the form of elastic waves called acoustic emissions. This paper presents results from acoustic emission measurements obtained during three point bending tests on Nestos marble under laboratory conditions. Acoustic emission activity was monitored using piezoelectric acoustic emission sensors, and the potential for accurate prediction of rock damage based on acoustic emission data was investigated. Damage localization was determined based on acoustic emissions generated from the critically stressed region as scattered events at stresses below and close to the strength of the material.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalInternational Journal of Mining Science and Technology
Volume26
Issue number1
DOIs
StatePublished - Jan 1 2016

Bibliographical note

Publisher Copyright:
© 2015 Published by Elsevier B.V. on behalf of China University of Mining & Technology.

Keywords

  • Acoustic emissions
  • Crack localization
  • Indirect tensile strength
  • Nestos marble
  • Three point bending test

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

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