Numerical simulation of the mechanical behavior of superconducting tape in conductor on round core cable using the cohesive zone model  

作　　者：Shengyi TANG Xubin PENG Huadong YONG 

机构地区：[1]Department of Mechanics and Engineering Sciences,College of Civil Engineering and Mechanics,Lanzhou University,Lanzhou 730000,China [2]Key Laboratory of Mechanics on Disaster and Environment in Western China,Ministry of Education of China,Lanzhou University,Lanzhou 730000,China [3]Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjiang 212013,Jiangsu Province,China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2023年第9期1511-1532,共22页应用数学和力学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Nos.U2241267,12172155;11872195)。

摘　　要：Cables composed of rare-earth barium copper oxide(REBCO)tapes have been extensively used in various superconducting devices.In recent years,conductor on round core(CORC)cable has drawn the attention of researchers with its outstanding current-carrying capacity and mechanical properties.The REBCO tapes are wound spirally on the surface of CORC cable.Under extreme loadings,the REBCO tapes with layered composite structures are vulnerable,which can lead to degradation of critical current and even quenching of superconducting devices.In this paper,we simulate the deformation of CORC cable under external loads,and analyze the damage inside the tape with the cohesive zone model(CZM).Firstly,the fabrication and cabling of CORC are simulated,and the stresses and strains generated in the tape are extracted as the initial condition of the next step.Then,the tension and bending loads are applied to CORC cable,and the damage distribution inside the tape is presented.In addition,the effects of some parameters on the damage are discussed during the bending simulations.

关 键 词：high temperature superconducting(HTS)tape superconducting cable finite element simulation cohesive zone model(CZM) DAMAGE 

分 类 号：O34[理学—固体力学]