Detail publikace

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

MAZAL, P. VLAŠIC, F. KOULA, V.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

MAZAL, P.; VLAŠIC, F.; KOULA, V.

Rok RIV

2015

Vydáno

15. 12. 2015

Nakladatel

Elsevier

Místo

Senlis

ISSN

1877-7058

Periodikum

Procedia Engineering

Ročník

133

Číslo

1

Stát

Nizozemsko

Strany od

379

Strany do

388

Strany počet

10

URL

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

Plný text v Digitální knihovně

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",
  issn="1877-7058",
  url="https://www.sciencedirect.com/science/article/pii/S1877705815045865"
}