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Definition of defect size from ultrasonic inspection.Attempt to obtain a set of relationships between testing parameters defining the range of defect size that can be associated with a given echo amplitude and defect depth. These relationships allow the user to find the largest defect that will return a signal equal to that from a flat hole of known diameter and depth, and the signal amplitude ratio between worst case and flat hole defects of equal diameter. The variation of the data with defect and testing parameters is shown. The results are obtained analytically, with laboratory corroboration, by calculation of the echo amplitude of the defect shape yielding the smallest return signal, a sphere, and the echo amplitude of the defect shape yielding the largest return signal, a flat hole.
Document ID
19720027143
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Bennet, S. B.
Peterson, R. G.
(General Electric Co., Re-Entry and Environmental Systems Div.,Philadelphia Pa., United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1971
Subject Category
Machine Elements And Processes
Meeting Information
Meeting: Symposium on Nondestructive Evaluation in Aerospace, Weapons Systems, and Nuclear Applications
Location: San Antonio, TX
Start Date: April 21, 1971
End Date: April 23, 1971
Accession Number
72A10809
Funding Number(s)
CONTRACT_GRANT: NAS1-8994
Distribution Limits
Public
Copyright
Other

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