NASA NTRS · 19730019796
Developmental methods
Abstract
Brief accounts are included of three nondestructive evaluation methods that have been introduced within the past few years: (1) acoustic emission, (2) the use of coherent (laser) light, and (3) ultrasonic holography.
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Gardner, C. G.. 1973-01-01. Developmental methods. https://ntrs.nasa.gov/citations/19730019796
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