CORROSION DETECTION IN AGING AIRCRAFT

Award Information
Agency: Department of Transportation
Branch: N/A
Contract: N/A
Agency Tracking Number: 11009
Amount: $44,408.00
Phase: Phase I
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Physical Acoustics Corp
15 Princess Road, Lawrenceville, NJ, 08648
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A CONCEPT FOR THE DETECTION OF CORROSION IN AGING AIRCRAFT USING ACOUSTIC EMISSION MONITORING IS PROPOSED. CORROSION WILL BE LOCATED THROUGH THE EFFECT THAT IT HAS ON AIRFRAME STRENGTH (10% THINNING RESULTS IN 50% FATIGUE LIFE REDUCTION). ACOUSTIC EMISSION TECHNOLOGY USED ON THE F-111 FIGHTER/BOMBER WILL BE ADAPTED FOR USE ON COMMERCIAL AIRCRAFT. PRELIMINARY CONCEPT TESTING ON A BOEING 720B HAS RESULTED IN THE DETECTION OF AN UNSUSPECTED, HIDDEN 0.5 INCHCRACK IN THE CO-PILOT'S WINDSHIELD POST, AS WELL AS THE DISCOVERY THAT CORRODED AREAS GENERATE MORE SIGNALS THAN UNCORRODED AREAS. THE END PRODUCT OF THE PHASE I RESEARCH WILL BE THE SPECIFICATION OF A METHOD FOR INSTRUMENTING, STRESSING, MONITORING AND ANALYZING AN ENTIRE AIRCRAFT USINGACOUSTIC EMISSION TO LOCATE STRUCTURAL DAMAGE CAUSED BY CORROSION.

* information listed above is at the time of submission.

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