Experimental and Numerical Analysis of Strain in High-Strength $\hbox {Nb}_{3}\hbox {Sn}$ Magnets

We have developed a high-strength Ta-reinforced conductor for high-magnetic-field magnets. In our previous work, it was demonstrated that the Ta-reinforced conductor had good characteristics against mechanical stress and strain. In this study, we made a 2-D calculation code for a stress-strain analysis, and derived the stress and strain of the magnet using some physical values such as the Young´s modulus of the conductors, magnet dimensions and so on. According to the calculation results of some model magnets, the Ta-reinforced conductor could be used without extra support structures. Hence, the conductors are fit for high-magnetic-field and large-scale magnets such as NMR and SMES magnets.