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Lightweight Integrally Stiffened Composite Structure

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
87453
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
N081-016-0686
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Aurora Flight Sciences Corporation
4 Cambridge Center 11th Floor Cambridge, MA 02142-1494
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2008
Title: Lightweight Integrally Stiffened Composite Structure
Agency / Branch: DOD / NAVY
Contract: N68335-08-C-0165
Award Amount: $141,499.00
 

Abstract:

Aurora's Integrally Stiffened SBCF Panel (ISSP) design and manufacturing approach is a replacement for honeycomb panels. It relies upon the unique forming capability provided by Stretch Broken Carbon Fiber (SBCF), which is unidirectional, collimated short carbon fiber filaments in a prepreg tape format. Uncured SBCF is formed through "stretching" similar to plastic forming of metal, allowing complex shapes to be easily produced at significant layup savings. However, after forming and cure, the discontinuous SBCF filaments provide almost the same strength and stiffness as conventional continuous fiber composites. SBCF forming to date is for single surface skins such as shear webs with formed stiffening beads. While significant labor savings result, these configurations are not suitable for external panels, where many honeycomb parts are used. ISSP features a double skin panel -a smooth outer, air passage skin and a beaded inner skin - to provide structural efficiency and light weight of a sandwich panel, but without a core. The ISSP manufacturing process, successfully demonstrated, produces panels in a single cure cycle. A detailed Trade Study to validate weight and cost vs. a honeycomb baseline design will be conducted in collaboration with Sikorsky and Bell to establish weight, quality and manufacturing costs trade.

Principal Investigator:

Wonsub Kim
Principle Structures Engineer
7035301904
wkim@aurora.aero

Business Contact:

Diana Eichfeld
Contracts Manager
7033966329
deichfeld@aurora.aero
Small Business Information at Submission:

AURORA FLIGHT SCIENCES CORP.
9950 Wakeman Drive Manassas, VA 20110

EIN/Tax ID: 541502935
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No