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Acousto-ultrasonics - Retrospective exhortation with bibliographyMajor research on the acousto-ultrasonic (AU) technique (also known as the stress-wave-factor technique) encompassing aspects of acoustic emission and ultrasonic materials characterization methodology is reviewed. AU deals primarily with such factors as the assessment of the integrated effects of diffuse defect states, thermomechanical degradation, and population of subcritical flaws that influence AU measurements correlating with mechanical property variations. AU is used to evaluate fiber-reinforced composites, adhesive bonds, lumber, paper and wood products, cable and rope, and human bone. The AU technique has been demonstrated to be sensitive to interlaminar and adhesive bond strength variations and has been shown to be useful in assessing microporosity and microcracking produced by fatigue cycling. An extensive bibliography ranging from 1985 to 1991 is presented.
Document ID
19910052388
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Vary, Alex
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
May 1, 1991
Publication Information
Publication: Materials Evaluation
Volume: 49
ISSN: 0025-5327
Subject Category
Quality Assurance And Reliability
Accession Number
91A37011
Distribution Limits
Public
Copyright
Other

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