Lightweight Integrally Stiffened Composite Structure

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-10-C-0044
Agency Tracking Number: N081-016-0686
Amount: $599,961.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solicitation Year: 2008
Solicitation Topic Code: N08-016
Solicitation Number: 2008.1
Small Business Information
9950 Wakeman Drive, Manassas, VA, -
DUNS: 604717165
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jay Snider
 Program Manager
 (304) 848-5929
Business Contact
 Diana Eichfeld
Title: Contracts Manager
Phone: (703) 396-6329
Research Institution
Sandwich construction has excellent stiffness and strength to weight, and therefore has been used in many airframe applications for fixed and rotary wing aircraft. Unfortunately, honeycomb sandwich structures have proven costly to maintain due to limited durability. Perhaps the largest single limitation has been corrosion. The Navy operates its aircraft on the open seas in one of the harshest aircraft environments known. In addition to direct salt spray exposure, the maritime carrier aircraft environment features exposure to sustained high levels of humidity and occasional hot gas exposure. Non-metallic core such as HRH-10 Nomex or HRH-36 Kevlar/Korex do not corrode directly, however they remain susceptible to other failure modes such as impact and subsequent moisture damage. In the Phase II effort, Aurora Flight Sciences proposes to design and fabricate a complex curvature fairing using stretch-broken carbon fiber (SBCF) and demonstrate the ability of this material to produce an aircraft quality component without honeycomb that reduces weight and/or overall manufacturing and lifecycle costs. Results of the Phase I effort showed that SBCF integrally stiffened panels can be more weight efficient when compared to traditional honeycomb sandwich panels. The success of the Phase I effort in demonstrating the concept feasibility has paved the way for the design and fabrication of a full-scale article during the Phase II program.

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

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