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Acoustic emission characterization using AE (parameter) delayThe acoustic emission (AE) parameter delay concept is defined as that particular measured value of a parameter at which a specified baseline level of cumulative AE activity is reached. The parameter can be from any of a broad range of elastic, plastic, viscoelastic, and fracture mechanics parameters, as well as their combinations. Such parameters include stress, load, strain, displacement, time, temperature, loading cycle, unloading stress, stress intensity factor, strain energy release rate, and crack tip plasticity zone size, while the AE activity may be AE event counts, ringdown counts, energy, event duration, etc., as well as their combinations. Attention is given to examples for the AE parameter delay concept, together with various correlations.
Document ID
19830058405
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Williams, J. H., Jr.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Lee, S. S.
(MIT Cambridge, MA, United States)
Date Acquired
August 11, 2013
Publication Date
July 1, 1983
Publication Information
Publication: Materials Evaluation
Volume: 41
ISSN: 0025-5327
Subject Category
Quality Assurance And Reliability
Accession Number
83A39623
Distribution Limits
Public
Copyright
Other

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