NASA NTRS · 19730019788
Ultrasonics
Abstract
Ultrasonic testing is discussed as a primary means of nondestructive evaluation of subsurface flaws. The advantages and disadvantages are listed. The elementary principles, basic components of test units, scan modes, resonance testing, detection of fatigue cracks, monitoring fatigue crack growth, and determination of residual stress are discussed.
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Leonard, B. E., Gardner, C. G.. 1973-01-01. Ultrasonics. https://ntrs.nasa.gov/citations/19730019788
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