CORROSION DETECTION IN AGING AIRCRAFT

Award Information
Agency:
Department of Transportation
Amount:
$44,408.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
N/A
Award Year:
1989
Phase:
Phase I
Agency Tracking Number:
11009
Solicitation Topic Code:
N/A
Small Business Information
Physical Acoustics Corp
15 Princess Road, Lawrenceville, NJ, 08648
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
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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