Sizing of surface-breaking cracks in complex geometry components by ultrasonic Time-of-Flight Diffraction (TOFD) technique

Authors: Nath, S K; Balasubramaniam, K; Krishnamurthy, C V; Narayana, B H

Source: Insight - Non-Destructive Testing and Condition Monitoring, Volume 49, Number 4, April 2007 , pp. 200-206(7)

Publisher: The British Institute of Non-Destructive Testing

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Abstract:

Sizing a surface-breaking crack in a complex geometry component, for example a steam turbine's solid rotor shaft, is a challenging inspection task. This paper deals with experimental work for the evaluation of the Time-of-Flight Diffraction (TOFD) technique for sizing of surfacebreaking cracks in such a complex geometry component. The experimental results show that with the help of the mathematical model explained here, TOFD can size such cracks with reasonable accuracy.

Document Type: Research article

DOI: http://dx.doi.org/10.1784/insi.2007.49.4.200

Publication date: 2007-04-01

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Official Journal of The British Institute of Non-Destructive Testing - includes original research and devlopment papers, technical and scientific reviews and case studies in the fields of NDT and CM.
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