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Low cost composite structures for superconducting magnetic energy storage systems

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3 Author(s)
C. Rix ; Gen. Dynamics Space Magnetics, San Diego, CA, USA ; D. McColskey ; R. Acree

As part of the Superconducting Magnetic Energy Storage/Engineering Test Model (SMES-ETM) program, design, analysis, fabrication and test programs were conducted to evaluate the low cost manufacturing of fiberglass reinforced plastic (FRP) beams for usage as major components of the structural and electrical insulation systems. These studies utilized pultrusion process technologies and vinylester resins to produce large net sections at costs significantly below that of conventional materials. Demonstration articles incorporating laminate architectures and design details representative of SMES-ETM components were fabricated using the pultrusion process and epoxy, vinylester, and polyester resin systems. The mechanical and thermal properties of these articles were measured over the temperature range from 4 K to 300 K. The results of these tests showed that the pultruded, vinylester components have properties comparable to those of currently used materials, such as G-10, and are capable of meeting the design requirements for the SMES-ETM system

Published in:

IEEE Transactions on Magnetics  (Volume:30 ,  Issue: 4 )