Detection of Flaw and Corrosion

  • Masahiko Hirao
  • Hirotsugu Ogi

Abstract

The EMAT technique has been developed for nondestructive examination of railroad wheels for ensuring transportation integrity (Salzburger and Repplinger, 1983; Schramm et al., 1989). The flaws may result from the contact stress with rails, fatiguing, and tensile residual stress caused by excess braking (see §10.4.2). They potentially induce wheel failure and derailment, causing catastrophic damage. Early detection of flaws is required for replacement, which is realized with the automatic inspection of every wheel on a train.

Keywords

Tensile Residual Stress Mode Conversion Focal Line Railroad Wheel Rectangular Defect 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • Masahiko Hirao
    • 1
  • Hirotsugu Ogi
    • 1
  1. 1.Osaka UniversityJapan

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