Publication result detail

Use of acoustic emission method for identification of fatigue micro-cracks creation

MAZAL, P.; VLAŠIC, F.; KOULA, V.

Original Title

Use of acoustic emission method for identification of fatigue micro-cracks creation

English Title

Use of acoustic emission method for identification of fatigue micro-cracks creation

Type

WoS Article

Original Abstract

This paper is a contribution to the discussion on the possibilities of identification of the time behaviour of various stages of fatigue lifetime directly during experiments using non-destructive testing methods (mainly acoustic emission method). We focus especially on detection and characterization of the transition from the stage of cycling damage accumulation to micro-cracks creation. In the past years, the laboratory of fatigue properties of FME received and published plenty of information about propagation of damage mainly in Al and Ti alloys. In this paper are presented and compared the results of new experiments with steel used for nuclear reactors and Inconel alloy. This work is focused on comparison of selected parameters of acoustic emission signal in pre-initiation and initiation stage of fatigue crack creation. Acoustic emission hits with higher stress were detected in the pre-initiation stage whereas the initiation stage hits exhibited low stress.

English abstract

This paper is a contribution to the discussion on the possibilities of identification of the time behaviour of various stages of fatigue lifetime directly during experiments using non-destructive testing methods (mainly acoustic emission method). We focus especially on detection and characterization of the transition from the stage of cycling damage accumulation to micro-cracks creation. In the past years, the laboratory of fatigue properties of FME received and published plenty of information about propagation of damage mainly in Al and Ti alloys. In this paper are presented and compared the results of new experiments with steel used for nuclear reactors and Inconel alloy. This work is focused on comparison of selected parameters of acoustic emission signal in pre-initiation and initiation stage of fatigue crack creation. Acoustic emission hits with higher stress were detected in the pre-initiation stage whereas the initiation stage hits exhibited low stress.

Keywords

high cycle fatigue, crack, acoustic emission, signal processing, steel for nuclear reactor, Inconel

Key words in English

high cycle fatigue, crack, acoustic emission, signal processing, steel for nuclear reactor, Inconel

Authors

MAZAL, P.; VLAŠIC, F.; KOULA, V.

RIV year

2016

Released

15.12.2015

Publisher

Elsevier

Location

Senlis

ISBN

1877-7058

Periodical

Procedia Engineering

Volume

133

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

379

Pages to

388

Pages count

10

URL

https://www.sciencedirect.com/science/article/pii/S1877705815045865

Full text in the Digital Library

http://hdl.handle.net/11012/201031

BibTex

@article{BUT119766,
  author="Pavel {Mazal} and František {Vlašic} and Václav {Koula}",
  title="Use of acoustic emission method for identification of fatigue micro-cracks creation",
  journal="Procedia Engineering",
  year="2015",
  volume="133",
  number="1",
  pages="379--388",
  doi="10.1016/j.proeng.2015.12.667",
  url="https://www.sciencedirect.com/science/article/pii/S1877705815045865"
}

Documents

1-s2.0-S1877705815045865-main