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Processing and characterization of peti composites fabricated by high temperature vartm (section)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Smith Jr., Joseph G. Ghose, Sayata Loos, Alfred C. Watson, Kent A. Heider, Dirk Britton, Sean M. Jensen, Brian J. Connell, John W. Cano, Roberto J. |
| Copyright Year | 2011 |
| Description | The use of composites as primary structures on aerospace vehicles has increased dramatically over the past decade, but so have the production costs associated with their fabrication. For certain composites, high temperature vacuum assisted resin transfer molding (HT-VARTM) can offer reduced fabrication costs compared to conventional autoclave techniques. The process has been successfully used with phenylethynyl terminated imide (PETI) resins developed by NASA Langley Research Center (LaRC). In the current study, three PETI resins have been used to make test specimens using HT-VARTM. Based on previous work at NASA LaRC, larger panels with a quasi-isotropic lay-up were fabricated. The resultant composite specimens exhibited void contents of ~ 3% by volume depending on the type of carbon fabric preform used. Mechanical properties of the panels were determined at both room and elevated temperatures. Fabric permeability characterizations and limited process modeling efforts were carried out to determine infusion times and composite panel size limitations. In addition, new PETI based resins were synthesized specifically for HT-VARTM. |
| File Size | 412721 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110015713 |
| Archival Resource Key | ark:/13960/t3sv2kb14 |
| Language | English |
| Publisher Date | 2011-01-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Fabrication Aerospace Vehicles Resin Transfer Molding Cost Reduction High Temperature Composite Structures Imides Production Costs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
