Transport ac loss in a rectangular thin strip with power-law E(J)E(J) relation

• Transport ac loss in a thin strip with power-law E(J)E(J) is systematically computed.
• The scaled results can be accurately used for strips with any critical current and frequency.
• Experiments may be unambiguously compared with modeling results at a critical frequency.

Transport ac losses of a rectangular thin strip obeying relation E/Ec=(J/Jc)nE/Ec=(J/Jc)n with a fixed critical current IcIc and n=5,10,20,30n=5,10,20,30, and 40 are accurately computed at a fixed frequency f   as functions of the current amplitude ImIm. The results may be interpolated and scaled to those at any values of Ic,f, and 5⩽n⩽405⩽n⩽40. Normalized in the same way as that in Norris’ analytical formula derived from the critical-state model and converting f   to a critical frequency fcfc, the modeling results may be better compared with the Norris formula and experimental data. A complete set of calculated modeling data are given with necessary formulas to be easily used by experimentalists in any particular case.