CORROSION DETECTION IN AGING AIRCRAFT

Award Information
Agency:
Department of Transportation
Branch
n/a
Amount:
$44,408.00
Award Year:
1989
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
11009
Agency Tracking Number:
11009
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
15 Princess Road, Lawrenceville, NJ, 08648
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
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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