Hybrid blended resin systems have the potential to provide excellent impact performance in structured laminates. Although mostly under development for sheet molding compound (SMC) applications using glass fiber with high levels of fillers, the resins have been found to be useful in liquid molding applications with other high-performance fiber systems. A research pro-gram to develop the molding capability, property data, and capability to model the composites using newly de-veloped codes and modeling techniques was initiated through the Department of Energy’s Office of Freedom-Car and Vehicle Technologies. Results have shown ex-cellent adhesion to different fiber systems as evidenced by mechanical properties, and a capability to develop very good impact results – thereby allowing thin panel structures to be developed. Comparison to predicted me-chanical properties has been achieved and mechanisms for the development of observed high energy absorption under impact loadings are being investigated. Scale ef-fects based on panel thickness, fiber type loading, and position in laminate are being investigated. DOE pro-gram sponsorship was provided by Dr. Sidney Diamond, Technical Area Development Manager for High-Strength Weight-Reduction Materials.
Revised: August 6, 2010 |
Published: March 24, 2005
Citation
Simmons K.L., G.G. Jones, S.P. Walsh, and G.M. Wood. 2005.High Performance Laminates Using Blended Urethane Resin Chemistry. In Composites 2004 Convention and Trade Show, American Composites Manufacturers Association. Arlington, Virginia:American Compositites Manufacturers Association.PNNL-SA-44334.