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Separation of the elastic and plastic wave in electromagnetically induced acoustic emission testing

  • Zhichao Cai*
  • , Suzhen Liu
  • , Qingxin Yang
  • , Chuang Zhang
  • *Corresponding author for this work
  • Hebei University of Technology
  • Tiangong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this chapter, a developed electromagnetically induced acoustic emission technique (EMAE) which can be used for nondestructive flaw detection is introduced. This method is different from traditional acoustic emission testing (AET) in the behalf of locally electromagnetic force, which has a big advantage of contactless load. Based on the principle of electromagnetic acoustic transducers (EMAT), it causes the dynamic locally elastic vibration in the area of eddy current during the process of loading at the same time. Acoustic emission sensors receive the stress wave signal, which is the superposition of plastic wave and elastic wave. It is very meaningful to separate the elastic and plastic wave in EMAE. The results could enhance detection accuracy of small crack properties and acoustic emission signal.

Original languageEnglish
Title of host publicationAdvances in Acoustic Emission Technology - Proceedings of the World Conference on Acoustic Emission–2013
EditorsGongtian Shen, Zhanwen Wu, Junjiao Zhang
PublisherSpringer Science and Business Media, LLC
Pages633-642
Number of pages10
ISBN (Electronic)9781493912384
DOIs
StatePublished - 2015
Externally publishedYes
EventWorld Conference on Acoustic Emission 2013, WCAE 2013 - Shanghai, China
Duration: 30 Oct 20132 Nov 2013

Publication series

NameSpringer Proceedings in Physics
Volume158
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

ConferenceWorld Conference on Acoustic Emission 2013, WCAE 2013
Country/TerritoryChina
CityShanghai
Period30/10/132/11/13

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