Outfitting Attachment Systems for Composite Sandwich Structure (MSC P1B16-211)

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-02-C-0315
Agency Tracking Number: N013-0082
Amount: $400,000.00
Phase: Phase II
Program: STTR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Materials Sciences Corp.
500 Office Center Drive Suite 250, Fort Washington, PA, 19034
DUNS: 075537910
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Gerald Flanagan
 Technical Director
 (215) 542-8400
 flanagan@materials-sciences.com
Business Contact
 Adam Rosen
Title: Director, Business Development
Phone: (215) 542-8400
Email: adam@materials-sciences.com
Research Institution
 The University of Mississippi
 Alice M Clark
 Department of Mechanical Eng.
University, MS, 38677
 (662) 915-7482
 Nonprofit college or university
Abstract
"Sandwich panels will be used extensively in topside structure for future Navy ships. One missing piece of technology needed for this application is a robust, easy-to-install method for attaching the myriad of outfitting items required in a ship. The MSCapproach to solving this problem is to design an insert that can transfer pull-out loads directly to the core material. Loading the core removes the possibility of ripping off the facesheet in an overload condition. Stress analyses have been used tooptimize the insert so that stress concentrations are minimized, and the theoretical maximum load can be achieved in practice. Testing in the Phase I program established the validity of the concept. The Phase II program focuses on performing sufficienttesting that the Navy can have the same level of confidence in this system as they have for existing attachment systems. In addition, development work will be performed to reduce the fastener cost and improve the ease of installation.BENEFITS: Thepotential market for the device is large. It is estimated that the composite helicopter hangar alone uses 20-30 thousand screws. Next generation surface combatants such as DD(X) are likely be built with a high percentage of composite structures. The useof composites is being driven by life-cycle cost considerations, reduced crew size, stealth, and weight. Thus, the surface ship market alone is sufficient to drive a healthy market for the inserts. The same outfitting considerations also occur in therecreational boat and yacht markets."

* information listed above is at the time of submission.

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