Acoustic emission monitoring of brittle fatigue crack growth in railway steel

Zhiyuan Han*, Guoshan Xie, Hongyun Luo, Mayorkinos Papaelias, Claire Davis

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Rail networks are gradually getting busier with rolling stock traveling at higher speeds and carrying heavier axle loads than ever before. In order to consider the further application of acoustic emission (AE) for railway damage monitoring, the fatigue and AE characteristics during the fatigue crack growth (FCG) process in a rail steel were investigated in this study. For better recognition and prediction fatigue damage of rail steel, the relationship between the micromechanism and the characteristics of AE signals were studied. The FCG experiments were carried out, and the AE signals emitted from FCG process were studied by AE parameters and Fast Fourier Transformed (FFT) spectra analysis. The AE results were also compared with the fracture surfaces. The results show that the AE technique is capable of acquiring and identifying brittle fracture events during FCG of rail steel.

Original languageEnglish
Title of host publicationAdvances in Acoustic Emission Technology
Subtitle of host publicationProceedings of the World Conference on Acoustic Emission–2015
EditorsGongtian Shen, Zhanwen Wu, Junjiao Zhang
PublisherSpringer Science and Business Media, LLC
Pages371-382
Number of pages12
ISBN (Electronic)978-3-319-29052-2
ISBN (Print)978-3-319-29050-8, 978-3-319-80482-8
DOIs
Publication statusPublished - 24 May 2017
EventWorld Conference on Acoustic Emission, WCAE 2015 - Hawaii, United States
Duration: 10 Nov 201513 Nov 2015

Publication series

NameSpringer Proceedings in Physics
Volume179
ISSN (Print)0930-8989

Conference

ConferenceWorld Conference on Acoustic Emission, WCAE 2015
Country/TerritoryUnited States
CityHawaii
Period10/11/1513/11/15

Keywords

  • Acoustic Emission
  • Fatigue Crack Growth
  • Acoustic Emission Signal
  • Fatigue Crack Growth Rate
  • Acoustic Emission Event

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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