Inspection of Subsurface Flaws around Fasteners on Aircraft

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,993.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
FA8501-08-M-0020
Award Id:
86750
Agency Tracking Number:
F073-119-0765
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
44 Hunt Street, Watertown, MA, 02472
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
073804411
Principal Investigator:
TimothyTiernan
Director of Adv. Instrumentation
(617) 668-6856
TTiernan@RMDinc.com
Business Contact:
NancyMarshall
Contracts Administration Manager
(617) 668-6810
NMarshall@RMDinc.com
Research Institute:
n/a
Abstract
New technology is needed for nondestructive inspection (NDI) of defects in metallic components on aircraft. Small cracks and flaws in multilayer components near rivets and fasteners are a particular concern. Other problems include detecting and characterizing small defects in highly confined areas. An NDI technology capable of imaging deeply buried defects at various layers of a component under a variety of surface conditions would be ideal. Existing NDI technologies such as visible imaging, x-radiography and acoustic emission cannot provide the high resolution NDI needed to detect deeply buried defects and characterize their dimensions and depth in a material. RMD proposes a revolutionary new eddy current imaging technology based on magnetic imaging and eddy current mapping detect and characterize cracks, corrosion and other defects in multilayer metallic components. A 2-D, solid-state sensor array will generate magnetic images of eddy currents. Eddy current mapping allow the system to perform highly dependable NDI on multilayer components containing defects near fasteners and holes. The proposed NDI system will be portable, versatile and simple to operate. The proposed NDI technology will improve aircraft integrity and crew safety, improve readiness, and reduce the cost and complexity of inspections.

* information listed above is at the time of submission.

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