Publication detail

Application of Acoustic Emission on the Characterization of Micro Cracks during Three-point Bending Test on Thermal-stressed Concrete Specimens

TOPOLÁŘ, L. KUCHARCZYKOVÁ, B. KOCÁB, D. PAZDERA, L.

Original Title

Application of Acoustic Emission on the Characterization of Micro Cracks during Three-point Bending Test on Thermal-stressed Concrete Specimens

Type

abstract

Language

English

Original Abstract

Concrete structures could be exposed to extreme temperature conditions. Examples of such conditions are concrete foundations for launching rockets carrying spaceships, concrete structures in nuclear power stations or those accidentally exposed to fire, for instance in the case of tunnel fires. This paper analyses acoustic emission signals captured during three-point bending test on thermal-stressed concrete specimens. The method of acoustic emission is an experimental tool suitable for monitoring of the failure processes in materials. The typical parameters of acoustic emission signal were identified during the acoustic emission records for different concrete specimens to further describe the under-thestress behavior and failure development. The amount of crack growth was continuously monitored using four acoustic emission sensors mounted on the specimens.

Keywords

acoustic emission method; three-point bending test; plain concrete; high-temperature degradation; modulus of elasticity;

Authors

TOPOLÁŘ, L.; KUCHARCZYKOVÁ, B.; KOCÁB, D.; PAZDERA, L.

Released

8. 11. 2016

Publisher

Technical University of Košice

Location

Košice

ISBN

978-80-553-2643-6

Book

SPACE 2016

Pages from

1

Pages to

2

Pages count

2

BibTex

@misc{BUT131261,
  author="Libor {Topolář} and Barbara {Kucharczyková} and Dalibor {Kocáb} and Luboš {Pazdera}",
  title="Application of Acoustic Emission on the Characterization of Micro Cracks during Three-point Bending Test on Thermal-stressed Concrete Specimens",
  booktitle="SPACE 2016",
  year="2016",
  pages="1--2",
  publisher="Technical University of Košice",
  address="Košice",
  isbn="978-80-553-2643-6",
  note="abstract"
}