A Solution for Nonlinear Poisson-Neumann Problem of Nb3Sn Superconducting Transport Current

摘要：

　　The large Cable-In-Conduit Conductors (CICC) designed for the magnet coils in the International Thermonuclear Experimental Reactor (ITER) are composed of Nb3Sn superconducting multifilament composite strands.Nb3Sn is particularly sensitive to strain.To deal with the problem of the strand transport properties,a nonlinear Poisson equation is established derived from Maxwell equations and constitutive relations of superconducting composite material.Finite element method is employed to solve this nonlinear issue.Eventually,the FEM solution predicts the current transport map and critical current degradation.Compared to the classic Ekins model,this FEM scheme is able to consider the case close to actual transverse resistivity.

作者: W.TA Y.LI Y.GAO

作者单位: Department of Mechanics and Engineering Sciences,College of Civil Engineering and Mechanics Lanzhou University, Lanzhou, Gansu 730000, PR China

会议类型: 国际会议

会议名称: Sixth International Conference on Nonlinear Mechanics(第六届国际非线性力学会议)(ICNM-VI)

会议地点: 上海

会议语种:英文

页码: 111-114

在线出版日期: 2013-08-01（万方平台首次上网日期，不代表论文的发表时间）