Calculation of the critical current reduction in a brittle wound multifilamentary wire due to external forces

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Abstract

A simple model is presented that can describe the electro-mechanical state of a multifilamentary wire. An elastic cylinder model is used to derive the strain state analytically. Axial and transverse forces came a position dependent critical current density in the wire. The integral critical current of such a wire is calculated. The effect of two different parameters, the hydrostatic and the deviatoric strain, on the critical current is compared. The critical current reduction of a model wire due to various external loads in a Nb 3Sn wire is analysed. Finally the position of the superconducting filaments is considered
Original languageEnglish
Pages (from-to)1867-1870
Number of pages4
JournalIEEE transactions on magnetics
Volume30
Issue number4
DOIs
Publication statusPublished - 1994
Event13th International Conference on Magnet Technology, MT-13 1993 - Victoria, Canada
Duration: 20 Sep 199324 Sep 1993
Conference number: 13

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