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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
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" }