Reconstruction of stress corrosion cracks based on pulsed eddy current signals

Xiaowei Wang, Shejuan Xie, Li Wang, Yong Li, Zhenmao Chen, Toshiyuki Takagi

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

6 Citations (Scopus)

Abstract

Reconstruction of Stress Corrosion Cracks (SCCs) using conventional Eddy Current Testing method (ECT) shows its limitation especially when dealing with deep SCCs. Recently, a new approach utilizing Pulsed Eddy Current Testing (PECT) signals has been proposed to reconstruct wall thinning defect based on a deterministic optimization method. It is because PECT is found advantageous over the conventional ECT due to its features of abundant frequency components and large exciting currents. In this study, stochastic optimization methods of neural network, tabu search, simulated annealing and genetic algorithm are introduced to reconstruct the SCC profile from the PECT signals. The efficiency and accuracy of these stochastic methods are evaluated and discussed.

Original languageEnglish
Title of host publication2012 6th International Conference on Electromagnetic Field Problems and Applications, ICEF'2012
DOIs
Publication statusPublished - 2012
Event2012 6th International Conference on Electromagnetic Field Problems and Applications, ICEF'2012 - Dalian, China
Duration: 2012 Jun 192012 Jun 21

Publication series

Name2012 6th International Conference on Electromagnetic Field Problems and Applications, ICEF'2012

Other

Other2012 6th International Conference on Electromagnetic Field Problems and Applications, ICEF'2012
CountryChina
CityDalian
Period12/6/1912/6/21

Keywords

  • Fast forward solver
  • Inverse problem
  • Non-destructive testing
  • Pulsed eddy current testing
  • Stochastic methods

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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