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LEVERAGING HIGH-TOUGHNESS, LOW VISCOSITY RESIN IN COMPOSITE PRESSURE VESSELS

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Title: LEVERAGING HIGH-TOUGHNESS, LOW VISCOSITY RESIN IN COMPOSITE PRESSURE VESSELS 

 

Abstract: Technology developments in composite overwrapped pressure vessels during the past decade have provided opportunities for the leveraging of alternative fuels such as natural gas and hydrogen for heavy trucks, buses, and passenger cars. The design of carbon-fiber, filament-wound Type III and Type IV composite vessels results in extremely efficient load-bearing structures with low weight. However, some challenges remain in ensuring residual strength after damage events like impact and cost-effective usage of carbon-fiber. While the carbon-fiber performance is the main parameter driving vessel performance, the resin matrix plays an important role in ensuring stress-transfer between fibers is uniform and efficient in certain regions of the vessel. Since composite vessels in use potentially possess stress-concentrating voids and/or localized fiber damage, vessel manufacturers favor a conservative hoop-helical stress ratio. By employing a process which provides low-void content with a high fracture-toughness resin, the ability to achieve high performance with reliability in Type III and Type IV vessels was investigated. The potential for weight savings of composite tanks with improved damage tolerance will also be discussed.  

 

Authors: Brian D. Edgecombe and Rosemary Kiser

 

Conference: CAMX 2017 –Orlando

 

SKU/Code: TP17-0061

 

Pages: 9


 

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