ACOUSTIC EMISSION MONITORING SYSTEM FOR DETECTION OF CRACKS IN A COMPLEX STRUCTURE
AN ACOUSTIC EMISSION MONITORING SYSTEM DESIGNED TO DETECT, IN REAL TIME, INITIATION AND GROWTH OF CRACKS IN A COMPLEX STRUCTURE DURIING STATIC AS WELL AS FATIGUE TESTING HAS BEEN DEVELOPED. THE SYSTEM CONSISTS OF ARRAYS OF ACOUSTIC SENSORS, LOGIC CIRCUITS AND OUTPUT DEVICES. AN EFFECTIVE SPATIAL- AND FREQUENCY-FILTER COMBINATION PERMITS THE USE OF THE SYSTEM IN THE PRESENCE OF THE HEAVY BACKGROUND NOISE ORDINARILY ENCOUNTERED IN THE TESTING OF A LARGE, COMPLEX STRUCTURE. THE SYSTEM IS BEING USED SUCCESSFULLY IN STATIC AND FATIGUE TESTING OF FULL-SCALE AS WELL AS SMALL-SCALE SPECIMENS OF AIRCRAFT COMPONENTS AND STRUCTURES. /AUTHOR/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00255327
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Supplemental Notes:
- Vol 29, No 1, PP 8-12, 9 FIG, 3 REF
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Authors:
- Nakamura, Y
- Publication Date: 1971-1
Media Info
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Serial:
- Materials Evaluation
- Publisher: American Society for Nondestructive Testing
- ISSN: 0025-5327
Subject/Index Terms
- TRT Terms: Acoustics; Aircraft; Components; Detection and identification; Detectors; Fatigue tests; Fracture mechanics; Logic circuits; Monitoring; Noise; Pollutants; Sensors; Static tests; Structures; Systems
- Subject Areas: Aviation; Bridges and other structures; Environment; Geotechnology; Highways; Materials; Vehicles and Equipment;
Filing Info
- Accession Number: 00217056
- Record Type: Publication
- Files: TRIS
- Created Date: May 10 1971 12:00AM