Testing of Fiberglass-Reinforced Polyester Composite
The Wisconsin superconductive energy storage magnet requires a large, low-thermal-conductive, high-load-carrying, supporting structure to carry the radial and axial compressive loads from 1.8-K magnet coils to room temperature bedrock. For economic reasons, fiberglass-polyester composite (Extren, with glass content of 44%, manufactured by Morrison Molded Fiberglass) was chosen over fiberglassepoxy composite.
KeywordsCompressive Strength Fracture Toughness Crack Length Permanent Deformation Strain Energy Release
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