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Epoxy/Glass and Polyimide (LaRC(TradeMark) PETI-8)/Carbon Fiber Metal Laminates Made by the VARTM ProcessRecent work at NASA Langley Research Center (LaRC) has concentrated on developing new polyimide resin systems for advanced aerospace applications that can be processed without the use of an autoclave. Polyimide composites are very attractive for applications that require a high strength to weight ratio and thermal stability. Vacuum assisted resin transfer molding (VARTM) has shown the potential to reduce the manufacturing cost of composite structures. Fiber metal laminates (FML) made via this process with aluminum, glass fabric, and epoxy resins have been previously fabricated at LaRC. In this work, the VARTM process has been refined for epoxy/glass FMLs and extended to the fabrication of FM Ls with titanium/carbon fabric layers and a polyimide system developed at NASA, LARC(TradeMark) PETI-8. Resin flow pathways were introduced into the titanium foils to aid the infiltration of the polyimide resin. Injection temperatures in the range of 250-280 C were required to achieve the necessary VARTM viscosities (<10 Poise). Laminate quality and initial mechanical properties will be presented.
Document ID
20100021128
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Cano, Roberto J.
(NASA Langley Research Center Hampton, VA, United States)
Loos, Alfred C.
(Michigan State Univ. East Lansing, MI, United States)
Jensen, Brian J.
(NASA Langley Research Center Hampton, VA, United States)
Britton, Sean M.
(NASA Langley Research Center Hampton, VA, United States)
Tuncol, Goker
(Michigan State Univ. East Lansing, MI, United States)
Long, Kai
(Michigan State Univ. East Lansing, MI, United States)
Date Acquired
August 24, 2013
Publication Date
May 17, 2010
Subject Category
Composite Materials
Report/Patent Number
NF1676L-9350
Meeting Information
Meeting: SAMPE 2010 Conference
Location: Seattle, WA
Country: United States
Start Date: May 17, 2010
End Date: May 20, 2010
Sponsors: Society for the Advancement of Materials and Process Engineering
Funding Number(s)
WBS: WBS 984754.02.07.07.15.03
Distribution Limits
Public
Copyright
Public Use Permitted.
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