Failure Criterion of Glass/Epoxy Composites Used as Electrical Insulation for Large Superconducting Magnets
The size of large superconducting magnets using indirect cooling is increasing, as well as their stored energy. The mechanical properties of the electrical insulation are therefore of major importance. A R&D program has been conducted in order to determine the maximum values to be used in the design of large magnets. The results of mechanical tests on insulation using different processing techniques are presented here. The paper will present some results about the mechanical properties at 4K of glass fiber ribbon based composite insulation. A failure criterion for the design of the insulation is proposed.
KeywordsYoung Modulus Fiber Volume Fraction Composite Insulation Transverse Modulus Fill Direction
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