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

Author

Eriksen, M. ; Bech, J.I. ; Seifi, B. ; Bay, N.

Author_Institution

Inst. for Product Dev., Tech. Univ. Denmark, Lyngby, Denmark

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

3756

Lastpage

3759

Abstract

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

Keywords

bismuth compounds; calcium compounds; deformation; finite element analysis; high-temperature superconductors; multifilamentary superconductors; powder technology; rolling; silver; strontium compounds; 2D pressing; 3 dimensional flow; 3-dimensional numerical modelling; 3D models; Ag; BiSrCaCuO; Drucker-Prager/Cap model; ELFEN; FEM program; HTSC; deformation process; flat rolling; multifilament HTS tapes; powder; rolling; simulation time; superconducting Ag/BiSrCaCuO tape; Bismuth compounds; Capacitive sensors; Friction; Geometry; Multifilamentary superconductors; Numerical models; Powders; Pressing; Superconducting films; Wire drawing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919881

Filename

919881