High speed thin plate fatigue crack monitor
作者： Buzz A. Wincheski , Min Namkung , Joseph S. Heyman , James P. Fulton
DOI:
关键词: Structural engineering 、 Fracture mechanics 、 Fatigue testing 、 Acoustic emission 、 Structural mechanics 、 Resonance 、 Acoustics 、 Noise (radio) 、 Materials science 、 Vibration
摘要: A device and method are provided which non-destructively detect crack length geometry in thin metallic plates. non-contacting vibration apparatus produces resonant vibrations without introducing extraneous noise. Resulting shifts cracked plates correlated to known with similar shifts. In addition, acoustic emissions of cracks at resonance frequencies from geometries.
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