Neutron radiography and other NDE tests of main rotor helicopter blades

A few nondestructive examination (NDE) techniques are extensively being used worldwide to investigate aircraft structures for all types of defects. The detection of corrosion and delaminations, which are believed to be the major initiators of defects leading to aircraft structural failures, are addr...

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Bibliographic Details
Published in:	Applied radiation and isotopes Vol. 61; no. 4; pp. 609 - 616
Main Authors:	de Beer, F.C., Coetzer, M., Fendeis, D., Silva, A.Da Costa E
Format:	Journal Article
Language:	English
Published:	England Elsevier Ltd 01-10-2004
Subjects:	Aircraft structures Corrosion NDT Neutron radiography SAFARI-1 Shearography Neutron radiography SAFARI-1 Shearography Corrosion Aircraft structures NDT
Online Access:	Get full text
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Summary:	A few nondestructive examination (NDE) techniques are extensively being used worldwide to investigate aircraft structures for all types of defects. The detection of corrosion and delaminations, which are believed to be the major initiators of defects leading to aircraft structural failures, are addressed by various NDE techniques. In a combined investigation by means of visual inspection, X-ray radiography and shearography on helicopter main rotor blades, neutron radiography (NRad) at SAFARI-1 research reactor operated by Necsa, was performed to introduce this form of NDE testing to the South African aviation industry to be evaluated for applicability. The results of the shearography, visual inspection and NRad techniques are compared in this paper. The main features and advantages of neutron radiography, within the framework of these investigations, will be highlighted.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0969-8043 1872-9800
DOI:	10.1016/j.apradiso.2004.03.088