Improved Composite Duct Design for Increased Safety Margin or Weight Reduction

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-04-C-2500
Agency Tracking Number: 021PR-2848
Amount: $749,938.00
Phase: Phase II
Program: SBIR
Awards Year: 2004
Solicitation Year: 2002
Solicitation Topic Code: AF02-176
Solicitation Number: 2002.1
Small Business Information
CONVERGENCE ENGINEERING CORP.
1638 Finch Drive, Gardnerville, NV, 89410
DUNS: 861033264
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Rory Davis
 (775) 782-7227
 rorydavis@starband.net
Business Contact
 Rory Davis
Phone: (775) 782-7227
Email: rorydavis@starband.net
Research Institution
N/A
Abstract
Practical methodologies were developed in Phase 1 to efficiently design nonlinear composite ducts and panels with large anomalies and cutouts for buckling, will be verified in Phase II with a comprehensive test/analysis correlation program. The analysis system is automated and integrated into the ANSYS finite element code using its macro language capabilities, including parameterized shell and solid models of subject composite duct systems. Important features included in the analysis system are 1) geometric nonlinearity of panels due to initial or load induced curvature, and 2) buckling and snap-through. Testing includes braided/RTM composite fundamental property samples, half scale JSF bypass ducts, and full scale JSF flange segments.

* information listed above is at the time of submission.

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