3-dimensional numerical modelling of rolling of superconducting Ag/BSCCO tape

Morten Eriksen, Jakob Ilsted Bech, Behrouz Seifi, Niels Bay

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    Numerical simulation of the deformation process during flat rolling of multifilament HTS tapes has been investigated using a commercial FEM program, ELFEN. The numerical models were built up in 2D and 3D using a Drucker-Prager/Cap model for the powder. Three different roll diameters (Ø24 mm, Ø85 mm and Ø126 mm) have been investigated. It is found that it is possible to perform numerical simulation with 3D models of flat rolling of multifilament wire. Two 3D models have been used; 3D pressing with rolls and 3D rolling. 3D pressing with rolls have the advance that the simulation time is lower than in the 3D rolling. The 3D models have the advantage compared to 2D pressing that they can predict the 3 dimensional flow in the flat rolling, which has been showed to be very imported for the super conduction properties
    Original languageEnglish
    JournalI E E E Transactions on Applied Superconductivity
    Issue number1
    Pages (from-to)3756-3759
    Publication statusPublished - 2000

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