Summary
This paper presents a detailed computational framework for assessing critical current degradation in hybrid superconducting magnets combining Nb₃Sn and Bi-2212 conductors. Using strand-level finite-element modelling in Ansys APDL, the authors integrated experimental strain-dependent critical current laws to predict Ic(ε) reduction under the intense Lorentz forces experienced during magnet operation at 16 T. The methodology provides a rigorous tool for optimising the design and performance of next-generation high-field hybrid magnets.
UK applicability
The computational methods and strain-degradation framework may be relevant to UK-based superconductor research and high-field magnet development programmes, particularly at facilities such as the Rutherford Appleton Laboratory. However, the work is primarily application-focused for accelerator magnet engineering rather than agricultural or food-systems research.
Key measures
Critical current Ic(ε) reduction under strain; Lorentz force-induced strain in Rutherford cables; conductor degradation at 16 T field strength
Outcomes reported
The study developed a computational methodology to predict critical current degradation in Nb₃Sn and Bi-2212 superconductors under intense Lorentz forces at 16 T in a hybrid dipole magnet. The analysis integrated strain-dependent critical current laws with experimental data to assess conductor integrity across multiple current-powering configurations.
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