Military Gas Turbine Engine High-Cycle Fatigue (HCF) Mitigation

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0399
Agency Tracking Number: N041-009-1387
Amount: $466,158.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solicitation Year: 2004
Solicitation Topic Code: N04-009
Solicitation Number: 2004.1
Small Business Information
750 Old Hickory Blvd, Building 2, Suite 270, Brentwood, TN, 37027
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard Holmes
 Director of Modeling & Si
 (615) 372-0299
 rholmes@vextec.com
Business Contact
 Lorenz Nasser
Title: President & CEO
Phone: (615) 372-0299
Email: lnasser@vextec.com
Research Institution
N/A
Abstract
The JSF Program requires a probabilistic approach to high cycle fatigue (HCF) foreign object damage (FOD) limit determination. The current Goodman diagram based methods have a capability gap addressing the JSF probabilisitic requirements and are costly and time consuming due to the extensive bench fatigue testing required. Through Phase I and II SBIR contracts VEXTEC demonstrated the ability to use probabilistic microstructural modeling methods requiring significantly less test data and yielding more accurate results on "industry" titanium blades. The analytical tool VEXTEC created needs to be evaluation using existing JSF data, designs,and materials before it can be included in engine OEM designs. The goal of the proposed expansion effort is to demonstrate the application of VEXTEC’s technology on a JSF first stage fan blade to predict fatigue durability under various surface treatment, foreign object damage and repair conditions. The by product of this effort will be the development of a simulation tool that P&W can use to provide a level of tractability to VEXTEC simulation results.

* Information listed above is at the time of submission. *

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