Manufacturing and Performance Evaluation of Glass-Ribbon Reinforced Transparent Composites
A transparent composite is based on the concept of matching the refractive index of the glass fiber with that of resin. A novel optically transparent glass-ribbon reinforced polymer matrix composite has been developed by infusing a clear epoxy resin system of matching refractive index into a stacked glass-ribbon preform (micron-size glass fibers with rectangular cross section). Rectangular glass ribbons are used as reinforcement as opposed to the conventional circular glass fibers since ribbons scatter less light than circular fibers for any given condition. The preforms are then laid up, vacuum bagged and infused with the resin. The set-up is then cured in an oven under controlled temperature and vacuum to make transparent composite panels. Various physical and mechanical tests like fiber volume fraction, tensile, flexure and impact have been conducted. Results indicate significant improvements in stiffness, strength and impact resistance. These new glass-ribbon reinforced structural transparent composites will find applications in windshields, windows and other components where a strong, lightweight transparent material is desirable. Transparent composites will also have potential applications as backing material in transparent armor systems.
K. Chandrashekhara et al., "Manufacturing and Performance Evaluation of Glass-Ribbon Reinforced Transparent Composites," Proceedings of the 52nd International SAMPE Symposium - Material and Process Innovations: Changing our World (2008, Long Beach, CA), vol. 52, Society for the Advancement of Material and Process Engineering (SAMPE), May 2008.
52nd International SAMPE Symposium -- Material and Process Innovations: Changing our World (2008: May 18-22, Long Beach, CA)
Mechanical and Aerospace Engineering
Materials Science and Engineering
Keywords and Phrases
Glass Ribbons; Transparent Composites; Vacuum Infusion
International Standard Serial Number (ISSN)
Article - Conference proceedings
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01 May 2008