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The application of acoustic emission technique to fatigue crack measurementThe applicability of acoustic emission technique to measure fatigue cracks in aluminum alloy specimens was investigated. There are several variables, such as the metallurgical and the physical treatment of the specimen, that can affect the level of acoustic activity of a fatigue specimen. It is therefore recommended that the acoustic emission technique be supplemented by other nondestructive evaluation methods to obtain quantitative data on crack growth.
Document ID
19740026772
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Singh, J. J. (NASA Langley Research Center Hampton, VA, United States)
Davis, W. T. (NASA Langley Research Center Hampton, VA, United States)
Crews, J. H., Jr. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1974
Subject Category
Machine Elements And Processes
Report/Patent Number
L-9530
NASA-TN-D-7695
Report Number: L-9530
Report Number: NASA-TN-D-7695
Accession Number
74N34885
Funding Number(s)
PROJECT: RTOP 501-22-02-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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