Improved Composite Duct Design for Increased Safety Margin or Weight Reduction

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F33615-02-M-2253
Agency Tracking Number: 021PR-2848
Amount: $71,506.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
1638 Finch Drive, Gardnerville, NV, 89410
DUNS: 861033264
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Rory Davis
 Chief Engineer
 (775) 782-7227
 rorydavis@starband.net
Business Contact
 Rory Davis
Title: CEO
Phone: (775) 782-7227
Email: rorydavis@starband.net
Research Institution
N/A
Abstract
"Practical methodologies will be developed to efficiently design nonlinear composite ducts and panels with large anomalies and cutouts for buckling. The analysis system to be devised will be automated and integrated into the ANSYS finite element code usingits macro language capabilities, including optimization with parameterized shell and solid models of subject composite duct systems. Important features to be included in the analysis system are 1) geometric nonlinearity of panels due to initial or loadinduced curvature, and 2) buckling and snap-through. There is an opportunity here to improve the tools to expedite such design, to encourage the use of modern tools in general, and to greatly improve accuracy compared to commonly used approaches. Improvedaccuracy is absolutely critical to more optimized and lighter weight designs of composite structures being implemented for the good of the military and the nation. The tools to be developed under this project will also be useful for non military and nongovernment applications, wherever composite structural optimization (and not just panels) is desired to minimize cost in concert with maximizing robustness. After the initial development, the analysis system will be readily adaptable to additional finiteelement codes besides ANSYS."

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

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