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Reliable thermosonic inspection of aero engine turbine blades

Bolu, Gabriel and Gachagan, Anthony and Pierce, Stephen and Harvey, Gerald (2010) Reliable thermosonic inspection of aero engine turbine blades. Insight: The Journal of the British Institute of Non-Destructive Testing, 52 (9). pp. 488-493. ISSN 1354-2575

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Abstract

The application of Thermosonics as a screening technique for identifying cracked aero engine turbine blades is described. Thermosonics is a rapid and potentially, a cost-saving non-destructive testing (NDT) technique for rejecting cracked turbine blades as part of the regular inspection cycle. However, there remains a question over the reliability of the Thermosonic approach. The aim of this work is to assess the reliability of Thermosonics as a screening method for cracks in turbine blades. This work involved the use of 60 turbine blades with known cracks. First, a repeatability study was conducted on a subset of the 60 blades to establish a robust and repeatable experimental procedure, after which all 60 blades were inspected. Results from this work showed the experimental process to be robust and also that the known cracks in 52 out of the 60 blades were detected.

Item type: Article
ID code: 26753
Keywords: thermosonics, cracks, turbine blades, Electrical engineering. Electronics Nuclear engineering, Motor vehicles. Aeronautics. Astronautics, Materials Chemistry, Mechanics of Materials, Metals and Alloys, Mechanical Engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Technology > Motor vehicles. Aeronautics. Astronautics
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
Depositing user: Dr Anthony Gachagan
Date Deposited: 18 Aug 2010 11:14
Last modified: 27 Mar 2014 09:09
URI: http://strathprints.strath.ac.uk/id/eprint/26753

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