Fatigue Enhanced Cold-worked Hole FECH - Analyzer

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$700,000.00
Award Year:
2007
Program:
SBIR
Phase:
Phase II
Contract:
N68335-07-C-0162
Award Id:
75333
Agency Tracking Number:
N052-120-0385
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
130 North Main Street, Suite 600, Butte, MT, 59701
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
836287680
Principal Investigator:
SteveGalbraith
Prinicpal Investigator
(406) 497-5223
sgalbraith@resodyn.com
Business Contact:
LawrenceFarrar
President
(406) 497-5252
lcfarrar@resodyn.com
Research Institute:
n/a
Abstract
The U.S. Navy uses a cold-hole expansion method for increasing the fatigue life of primary aircraft structures at fastener locations. The derived benefit results from compressive stresses concentrated in the metal near the perimeter of the cold worked hole. The objective of this Phase II proposal is to develop portable, light weight, quality assurance tools, based upon Eddy Current technology, that can be used to determine if a hole has been properly cold worked. The proposed products will be hand held, easy to use, and fast. (Analysis time per hole will be approximately 10 seconds) The proposed product will be very cost effective when compared to alternative inspection approaches, e.g., X-Ray Diffraction. The Phase II work will be staged to develop a hole-inspection technology that has increasing levels of quality assessment capabilities: Product 1: Provides a definitive test establishing if a hole has been cold worked. Product 2: Determines if a cold worked hole is within specifications. Prototype Product 3: Maps and images the relative values of stress or strain around a cold worked hole. Products 1 and 2 (one each) will be the deliverables for the proposed Phase II work.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government