加强型Bi-2212超导股线有限元拉伸性能分析  

Finite element analysis of tensile properties of reinforced Bi-2212 superconducting strand

作　　者：周孟良 于敏 胡立标 洪文哲 余超 杨东昇[1,2] 秦经刚 金环 曹靖 Zhou Mengliang;Yu Min;Hu Libiao;Hong Wenzhe;Yu Chao;Yang Dongsheng;Qin JingangJin huan;Cao Jing(Institute of Plasma Physics,CAS,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;Tianjin University of Technology,Tianjin 300384,China)

机构地区：[1]中国科学院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026 [3]天津理工大学,天津300384

出　　处：《低温与超导》2022年第2期24-29,共6页Cryogenics and Superconductivity

基　　金：国家自然科学基金(51807193);国家自然科学基金(7020330101)资助。

摘　　要：为探究加强型Bi-2212超导股线的力学性能以及不锈钢包带对超导股线力学性能的影响,运用Ansys软件建立加强型Bi-2212超导股线的三维模型,采用有限元分析方法,对其机械结构进行仿真,模拟高温高压热处理后轴向受拉形变量和应力应变分布情况。仿真结果显示,在同样施加100 N拉力的情况下,与超导原线(Bi-2212超导线)相比,密绕Ni_(80)Cr_(20)包带后的加强型Bi-2212超导股线轴向受拉形变程度减小,约10%;应力应变均降低,约30%。采用Ni_(80)Cr_(20)作为外包带制成的加强型Bi-2212超导股线力学性能显著,是未来超导线发展方向之一。In order to investigate the mechanical properties of the reinforced Bi-2212 superconducting strands and the effect of the stainless straps on the mechanical properties of the superconducting strands, Ansys software was used to establish a three-dimensional model of the reinforced Bi-2212 superconducting strands. Finite element analysis methods were used to simulate the mechanical. The simulation results indicate that compared with the superconducting original wire at the same 100 N tension, the reinforced Bi-2212 superconducting strand with the Ni_(80)Cr_(20)package spool is reduced by about 10% in the distortion and the stress and strain are reduced by about 30%. As the remarkable properties, the reinforced Bi-2212 superconducting strand has, it can become a premising method to improve the mechanical stability.

关 键 词：BI-2212 有限元分析 Ni_(80)Cr_(20)力学性能 

分 类 号：TM249.7[一般工业技术—材料科学与工程]