NASA NTRS · 19790000520
Resonant-fatigue cracking apparatus
Abstract
Apparatus produces controlled surface cracks in test specimens. It has been developed and is useful in production of surface cracks of controlled size and shape in fracture specimens. It consists of specially-designed stand-mounted clamping fixture, commercially available pneumatic actuator, and suitable sound-control mufflers.
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Dorner, J. P., Pierce, W. S., Shannon, J. L., Jr.. 1980-06-01. Resonant-fatigue cracking apparatus. https://ntrs.nasa.gov/citations/19790000520
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