Abstract
The mechanical properties of a superconducting composite cylinder with transport current are investigated. By adopting the exponent model, the nonlinear differential equations for flux distributions are derived. The elastic solutions to stress, displacement and magnetostriction are analytically given. Some typical numerical results are displayed. Numerical results show that in the process of transport current reduction, tensile stress generally occurs in the outer region of the composite, and that displacement is always negative in the composite. In addition, as the applied maximal transport current exceeds the outer-cylinder critical current, a hysteresis loop of the magnetostriction exists for the full cycle of the transport current.
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Support from the National Natural Science Foundation of China (Grant Nos. 11272223 and 11072160), and the Program for Changjiang Scholars and Innovative Research Team in University (IRT0971) is acknowledged.
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Liu, Q., Liu, L. & Feng, W. Exponent Model for Mechanical Behaviors in a Cylindrical Superconducting Composite with Transport Current. Acta Mech. Solida Sin. 28, 23–32 (2015). https://doi.org/10.1016/S0894-9166(15)60012-X
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DOI: https://doi.org/10.1016/S0894-9166(15)60012-X